Earth or other matter in fine, dry particles. (Random House Unabridged Dictionary, 2d ed)
Finely divided solid matter with particle sizes smaller than a micrometeorite, thus with diameters much smaller than a millimeter, moving in interplanetary space. (NASA Thesaurus, 1994)
Air pollutants found in the work area. They are usually produced by the specific nature of the occupation.
Family of house dust mites, in the superfamily Analgoidea, order Astigmata. They include the genera Dermatophagoides and Euroglyphus.
Any arthropod of the subclass ACARI except the TICKS. They are minute animals related to the spiders, usually having transparent or semitransparent bodies. They may be parasitic on humans and domestic animals, producing various irritations of the skin (MITE INFESTATIONS). Many mite species are important to human and veterinary medicine as both parasite and vector. Mites also infest plants.
The exposure to potentially harmful chemical, physical, or biological agents that occurs as a result of one's occupation.
Quartz (SiO2). A glassy or crystalline form of silicon dioxide. Many colored varieties are semiprecious stones. (From Grant & Hackh's Chemical Dictionary, 5th ed)
A diffuse parenchymal lung disease caused by inhalation of dust and by tissue reaction to their presence. These inorganic, organic, particulate, or vaporized matters usually are inhaled by workers in their occupational environment, leading to the various forms (ASBESTOSIS; BYSSINOSIS; and others). Similar air pollution can also have deleterious effects on the general population.
A product of hard secondary xylem composed of CELLULOSE, hemicellulose, and LIGNANS, that is under the bark of trees and shrubs. It is used in construction and as a source of CHARCOAL and many other products.
The exposure to potentially harmful chemical, physical, or biological agents by inhaling them.
A condition of BRONCHOCONSTRICTION resulting from hypersensitive reaction to inhaled dust during the initial processing of cotton, flax, or hemp in the textile industry. Symptoms include wheezing and tightness in the chest.
Transparent, tasteless crystals found in nature as agate, amethyst, chalcedony, cristobalite, flint, sand, QUARTZ, and tridymite. The compound is insoluble in water or acids except hydrofluoric acid.
The monitoring of the level of toxins, chemical pollutants, microbial contaminants, or other harmful substances in the environment (soil, air, and water), workplace, or in the bodies of people and animals present in that environment.
The contamination of indoor air.
Supplies used in building.
Antigen-type substances that produce immediate hypersensitivity (HYPERSENSITIVITY, IMMEDIATE).
The surface of a structure upon which one stands or walks.
The aggregate business enterprise of manufacturing textiles. (From Random House Unabridged Dictionary, 2d ed)
A natural fuel formed by partial decomposition of vegetable matter under certain environmental conditions.
Species of European house dust mite, in the family PYROGLYPHIDAE. It is the most commonly found house dust mite.
Proteins synthesized by organisms belonging to the phylum ARTHROPODA. Included in this heading are proteins from the subdivisions ARACHNIDA; CRUSTACEA; and HORSESHOE CRABS. Note that a separate heading for INSECT PROTEINS is listed under this heading.
The presence of bacteria, viruses, and fungi in the air. This term is not restricted to pathogenic organisms.
Living facilities for humans.
A form of pneumoconiosis resulting from inhalation of dust containing crystalline form of SILICON DIOXIDE, usually in the form of quartz. Amorphous silica is relatively nontoxic.
Diseases in persons engaged in cultivating and tilling soil, growing plants, harvesting crops, raising livestock, or otherwise engaged in husbandry and farming. The diseases are not restricted to farmers in the sense of those who perform conventional farm chores: the heading applies also to those engaged in the individual activities named above, as in those only gathering harvest or in those only dusting crops.
Species of American house dust mite, in the family PYROGLYPHIDAE.
Ground up seed of WHEAT.
The exposure to potentially harmful chemical, physical, or biological agents in the environment or to environmental factors that may include ionizing radiation, pathogenic organisms, or toxic chemicals.
Any enterprise centered on the processing, assembly, production, or marketing of a line of products, services, commodities, or merchandise, in a particular field often named after its principal product. Examples include the automobile, fishing, music, publishing, insurance, and textile industries.
The planning of the furnishings and decorations of an architectural interior.
A plant genus of the family MALVACEAE. It is the source of COTTON FIBER; COTTONSEED OIL, which is used for cooking, and GOSSYPOL. The economically important cotton crop is a major user of agricultural PESTICIDES.
Standards for limiting worker exposure to airborne contaminants. They are the maximum concentration in air at which it is believed that a particular substance will not produce adverse health effects with repeated daily exposure. It can be a time-weighted average (TLV-TWA), a short-term value (TLV-STEL), or an instantaneous value (TLV-Ceiling). They are expressed either as parts per million (ppm) or milligram per cubic meter (mg/m3).
The maximum exposure to a biologically active physical or chemical agent that is allowed during an 8-hour period (a workday) in a population of workers, or during a 24-hour period in the general population, which does not appear to cause appreciable harm, whether immediate or delayed for any period, in the target population. (From Lewis Dictionary of Toxicology, 1st ed)
Toxins closely associated with the living cytoplasm or cell wall of certain microorganisms, which do not readily diffuse into the culture medium, but are released upon lysis of the cells.
Diseases of the respiratory system in general or unspecified or for a specific respiratory disease not available.
Supplying a building or house, their rooms and corridors, with fresh air. The controlling of the environment thus may be in public or domestic sites and in medical or non-medical locales. (From Dorland, 28th ed)
Relating to the size of solids.
The care and management of property.
Any substance in the air which could, if present in high enough concentration, harm humans, animals, vegetation or material. Substances include GASES; PARTICULATE MATTER; and volatile ORGANIC CHEMICALS.
Any solid objects moving in interplanetary space that are smaller than a planet or asteroid but larger than a molecule. Meteorites are any meteoroid that has fallen to a planetary surface. (From McGraw-Hill Dictionary of Scientific and Technical Terms, 4th ed)
Asbestos. Fibrous incombustible mineral composed of magnesium and calcium silicates with or without other elements. It is relatively inert chemically and used in thermal insulation and fireproofing. Inhalation of dust causes asbestosis and later lung and gastrointestinal neoplasms.
The science, art, or technology dealing with processes involved in the separation of metals from their ores, the technique of making or compounding the alloys, the techniques of working or heat-treating metals, and the mining of metals. It includes industrial metallurgy as well as metallurgical techniques employed in the preparation and working of metals used in dentistry, with special reference to orthodontic and prosthodontic appliances. (From Jablonski, Dictionary of Dentistry, 1992, p494)
A form of bronchial disorder with three distinct components: airway hyper-responsiveness (RESPIRATORY HYPERSENSITIVITY), airway INFLAMMATION, and intermittent AIRWAY OBSTRUCTION. It is characterized by spasmodic contraction of airway smooth muscle, WHEEZING, and dyspnea (DYSPNEA, PAROXYSMAL).
A type of asbestos that occurs in nature as the dihydrate of magnesium silicate. It exists in two forms: antigorite, a plated variety, and chrysotile, a fibrous variety. The latter makes up 95% of all asbestos products. (From Merck Index, 11th ed, p.893)
Respirators to protect individuals from breathing air contaminated with harmful dusts, fogs, fumes, mists, gases, smokes, sprays, or vapors.
Altered reactivity to an antigen, which can result in pathologic reactions upon subsequent exposure to that particular antigen.

Post-shift changes in pulmonary function in a cement factory in eastern Saudi Arabia. (1/1985)

This cross-sectional study was conducted in 1992 in the oldest of three Portland cement producing factories in Eastern Saudi Arabia. The respirable dust level was in excess of the recommended ACGIH level in all sections. Spirometry was done for 149 cement workers and 348 controls, using a Vitalograph spirometer. FEV1, FVC, FEV1/FVC% and FEF25-75% were calculated and corrected to BTPS. A significantly higher post-shift reduction FEV1, FEV1/FVC% and FEF25-75% was observed in the exposed subjects. Multiple regression analysis showed a significant relationship between post-shift changes and exposure to cement dust but failed to support any relationship with smoking. These findings may indicate an increase in the bronchial muscle tone leading to some degree of bronchoconstriction as a result of an irritant effect induced by the acute exposure to cement dust.  (+info)

Asthma visits to emergency rooms and soybean unloading in the harbors of Valencia and A Coruna, Spain. (2/1985)

Soybean unloading in the harbor of Barcelona, Spain, has been associated with large increases in the numbers of asthma patients treated in emergency departments between 1981 and 1987. In this study, the association between asthma and soybean unloading in two other Spanish cities, Valencia and A Coruna, was assessed. Asthma admissions were retrospectively identified for the period 1993-1995, and harbor activities were investigated in each location. Two approaches were used to assess the association between asthma and soybean unloading: One used unusual asthma days (days with an unusually high number of emergency room asthma visits) as an effect measure, and the other estimated the relative increase in the daily number of emergency room visits by autoregressive Poisson regression, adjusted for meteorologic variables, seasonality, and influenza incidence. No association between unusual asthma days and soya unloading was observed in either Valencia or A Coruna, except for one particular dock in Valencia. When the association between unloaded products and the daily number of emergency asthma visits was studied, a statistically significant association was observed for unloading of soya husk (relative risk = 1.50, 95% confidence interval 1.16-1.94) and soybeans (relative risk = 1.31, 95% confidence interval 1.08-1.59) in A Coruna. In Valencia, a statistical association was found only for the unloading of soybeans at two particular docks. Although these findings support the notion that asthma outbreaks are not a common hidden condition in most harbors where soybeans are unloaded, the weak associations reported are likely to be causal. Therefore, appropriate control measures should be implemented to avoid soybean dust emissions, particularly in harbors with populations living in the vicinity.  (+info)

Mechanisms and mediators in coal dust induced toxicity: a review. (3/1985)

Chronic inhalation of coal dust can cause several lung disorders, including simple coal workers pneumoconiosis (CWP), progressive massive fibrosis (PMF), chronic bronchitis, lung function loss, and emphysema. This review focuses on the cellular actions and interactions of key inflammatory cells and target cells in coal dust toxicity and related lung disorders, i.e. macrophages and neutrophils, epithelial cells, and fibroblasts. Factors released from or affecting these cells are outlined in separate sections, i.e. (1) reactive oxygen species (ROS) and related antioxidant protection mechanisms, and (2) cytokines, growth factors and related proteins. Furthermore, (3) components of the extracellular matrix (ECM), including the modifying role of ROS, cytokines, proteases and antiproteases are discussed in relation to tissue damage and remodelling in the respiratory tract. It is recognised that inhaled coal dust particles are important non-cellular and cellular sources of ROS in the lung, and may be significantly involved in the damage of lung target cells as well as important macromolecules including alpha-1-antitrypsin and DNA. In vitro and in vivo studies with coal dusts showed the up-regulation of important leukocyte recruiting factors, e.g. Leukotriene-B4 (LTB4), Platelet Derived Growth Factor (PDGF), Monocyte Chemotactic Protein-1 (MCP-1), and Tumor Necrosis Factor-alpha (TNF alpha), as well as the neutrophil adhesion factor Intercellular Adhesion Molecule-1 (ICAM-1). Coal dust particles are also known to stimulate the (macrophage) production of various factors with potential capacity to modulate lung cells and/or extracellular matrix, including O2-., H2O2, and NO, fibroblast chemoattractants (e.g. Transforming Growth Factor-beta (TGF beta), PDGF, and fibronectin) and a number of factors that have been shown to stimulate and/or inhibit fibroblast growth or collagen production such as (TNF alpha, TGF beta, PDGF, Insulin Like Growth Factor, and Prostaglandin-E2). Further studies are needed to clarify the in vivo kinetics and relative impact of these factors.  (+info)

Personal exposure to dust, endotoxin and crystalline silica in California agriculture. (4/1985)

AIMS: The aim of this study was to measure personal exposure to dust, endotoxin and crystalline silica during various agricultural operations in California over a period of one year. METHODS: Ten farms were randomly selected in Yolo and Solano counties and workers were invited to wear personal sampling equipment to measure inhalable and respirable dust levels during various operations. The samples were analysed for endotoxin using the Limulus Amebocyte Lysate assay and crystalline silica content using X-ray diffraction. In total 142 inhalable samples and 144 respirable samples were collected. RESULTS: The measurements showed considerable difference in exposure levels between various operations, in particular for the inhalable fraction of the dust and the endotoxin. Machine harvesting of tree crops (Geometric mean (GM) = 45.1 mg/m3) and vegetables (GM = 7.9 mg/m3), and cleaning of poultry houses (GM = 6.7 mg/m3) showed the highest inhalable dust levels. Cleaning of poultry houses also showed the highest inhalable endotoxin levels (GM = 1861 EU/m3). Respirable dust levels were generally low, except for machine harvesting of tree crops (GM = 2.8 mg/m3) and vegetables (GM = 0.9 mg/m3). Respirable endotoxin levels were also low. For the inhalable dust fraction, levels were reduced considerably when an enclosed cabin was present. The percentage of crystalline silica was overall higher in the respirable dust samples than the inhalable dust samples. CONCLUSIONS: Considerable differences exist in personal exposure levels to dust, endotoxin and crystalline silica during various agricultural operations in California agriculture with some operations showing very high levels.  (+info)

Fine particulate air pollution, resuspended road dust and respiratory health among symptomatic children. (5/1985)

The short-term association of particulate air pollution with peak expiratory flow rate (PEF) and respiratory symptoms was examined. Forty-nine children with chronic respiratory symptoms aged 8-13 yrs were followed daily for six weeks in spring, 1995, in Kuopio, Finland. Daily concentrations of particulate material with a 50% cut-off aerodynamic diameter < or = 10 microm and < or = 2.5 microm (PM10 and PM2.5, respectively), black carbon, and the number concentrations of particles from 0.01-10 microm diameter were measured. During the study period, PM10 were mainly resuspended soil and street dust, and the concentration was estimated using aluminum content of PM10 samples. No consistent effect of particles was found as the associations varied by lag. Of the lags examined, only 1-day lagged PM2.5 was statistically significantly associated with morning PEF (beta=-1.06, SE=0.52 (per interquartile increase in pollutant)). Evening PEF was significantly associated with the 1-day lagged number of particles in the size range 0.1-1.0 microm (beta=-1.56, SE=0.72). One-day lagged PM10, PM2.5-10, PM2.5 and resuspended PM10, and 4-day average of PM2.5 were significantly associated with increased risk of cough. Given the short duration of the study, separating the effects of different types of particles was difficult. The present study demonstrates the highly variable size and number distribution and chemical composition of particles in Finland, and underlines the importance of measuring the size and chemical composition of particles to determine which types of particles are associated with health effects.  (+info)

Contributory and exacerbating roles of gaseous ammonia and organic dust in the etiology of atrophic rhinitis. (6/1985)

Pigs reared commercially indoors are exposed to air heavily contaminated with particulate and gaseous pollutants. Epidemiological surveys have shown an association between the levels of these pollutants and the severity of lesions associated with the upper respiratory tract disease of swine atrophic rhinitis. This study investigated the role of aerial pollutants in the etiology of atrophic rhinitis induced by Pasteurella multocida. Forty, 1-week-old Large White piglets were weaned and divided into eight groups designated A to H. The groups were housed in Rochester exposure chambers and continuously exposed to the following pollutants: ovalbumin (groups A and B), ammonia (groups C and D), ovalbumin plus ammonia (groups E and F), and unpolluted air (groups G and H). The concentrations of pollutants used were 20 mg m-3 total mass and 5 mg m-3 respirable mass for ovalbumin dust and 50 ppm for ammonia. One week after exposure commenced, the pigs in groups A, C, E, and G were infected with P. multocida type D by intranasal inoculation. After 4 weeks of exposure to pollutants, the pigs were killed and the extent of turbinate atrophy was assessed with a morphometric index (MI). Control pigs kept in clean air and not inoculated with P. multocida (group H) had normal turbinate morphology with a mean MI of 41.12% (standard deviation [SD], +/- 1. 59%). In contrast, exposure to pollutants in the absence of P. multocida (groups B, D, and F) induced mild turbinate atrophy with mean MIs of 49.65% (SD, +/-1.96%), 51.04% (SD, +/-2.06%), and 49.88% (SD, +/-3.51%), respectively. A similar level of atrophy was also evoked by inoculation with P. multocida in the absence of pollutants (group G), giving a mean MI of 50.77% (SD, +/-2.07%). However, when P. multocida inoculation was combined with pollutant exposure (groups A, C, and E) moderate to severe turbinate atrophy occurred with mean MIs of 64.93% (SD, +/-4.64%), 59.18% (SD, +/-2.79%), and 73.30% (SD, +/-3.19%), respectively. The severity of atrophy was greatest in pigs exposed simultaneously to dust and ammonia. At the end of the exposure period, higher numbers of P. multocida bacteria were isolated from the tonsils than from the nasal membrane, per gram of tissue. The severity of turbinate atrophy in inoculated pigs was proportional to the number of P. multocida bacteria isolated from tonsils (r2 = 0.909, P < 0.05) and nasal membrane (r2 = 0.628, P < 0.05). These findings indicate that aerial pollutants contribute to the severity of lesions associated with atrophic rhinitis by facilitating colonization of the pig's upper respiratory tract by P. multocida and also by directly evoking mild atrophy.  (+info)

Evidence for suppressed activity of the transcription factor NFAT1 at its proximal binding element P0 in the IL-4 promoter associated with enhanced IL-4 gene transcription in T cells of atopic patients. (7/1985)

Allergen-specific T cells in atopic patients are polarized IL-4-producing Th2 cells, promoting IgE synthesis by B cells. The molecular basis for increased IL-4 gene expression in atopy is not fully understood. IL-4 gene regulation in general involves the nuclear factor of activated T cells (NFAT) family of transcription factors, of which NFAT1 and NFAT2 are most prominent in peripheral T cells. Recently, a unique inhibitory role of NFAT1 in IL-4 gene control was shown in the mouse. In a series of electrophoretic mobility shift assays with protein extracts of highly polarized Th2 clones from atopics and Th1 clones from controls we compared DNA-binding activities at the two NFAT-binding elements P0 and P1 of the crucial proximal human IL-4 promoter. At the most proximal P0 site, NFAT-containing complexes devoid of NFAT2 were readily inducible in the Th1 clones, but hardly or not in the Th2 clones. In contrast, both in Th1 and Th2 clones NFAT-containing complexes were strongly inducible at the P1 site, consisting of NFAT2 and a P0-compatible NFAT activity, without apparent differences between Th1 and Th2 clones. Like in Th2 clones, suppressed NFAT-P0 complex formation was observed also at the polyclonal level in peripheral blood mononuclear cells (PBMC) of three of five severe atopic dermatitis patients with strongly elevated serum IgE levels, but not in control PBMC. These findings suggest that high-level IL-4 production in atopic Th2 cells is associated with selective reduction of suppressive NFAT1 activity at the IL-4 P0 element and that some patients with this multifactorial disease may have a putative systemic disorder at this level.  (+info)

High concentrations of heavy metals in neighborhoods near ore smelters in northern Mexico. (8/1985)

In developing countries, rapid industrialization without environmental controls has resulted in heavy metal contamination of communities. We hypothesized that residential neighborhoods located near ore industries in three northern Mexican cities would be heavily polluted with multiple contaminants (arsenic, cadmium, and lead) and that these sites would be point sources for the heavy metals. To evaluate these hypotheses, we obtained samples of roadside surface dust from residential neighborhoods within 2 m of metal smelters [Torreon (n = 19)] and Chihuahua (n = 19)] and a metal refinery [Monterrey (n = 23)]. Heavy metal concentrations in dust were mapped with respect to distance from the industrial sites. Correlation between dust metal concentration and distance was estimated with least-squares regression using log-transformed data. Median dust arsenic, cadmium, and lead concentrations were 32, 10, and 277 microg/g, respectively, in Chihuahua; 42, 2, and 467 microg/g, respectively, in Monterrey, and 113, 112, and 2,448 microg/g, respectively, in Torreon. Dust concentrations of all heavy metals were significantly higher around the active smelter in Torreon, where more than 90% of samples exceeded Superfund cleanup goals. At all sites, dust concentrations were inversely related to distance from the industrial source, implicating these industries as the likely source of the contamination. We concluded that residential neighborhoods around metal smelting and refining sites in these three cities are contaminated by heavy metals at concentrations likely to pose a health threat to people living nearby. Evaluations of human exposure near these sites should be conducted. Because multiple heavy metal pollutants may exist near smelter sites, researchers should avoid attributing toxicity to one heavy metal unless others have been measured and shown not to coexist.  (+info)

Lung function is a predictor of morbidity and mortality, and the chronic nature of lung function decline allows for preventive initiatives. Proinflammatory constituents of organic dust are considered a possible cause of compromised respiratory health. The aim of this systematic review was to reveal the impact of organic dust exposure on long-term change in lung function. The literature search was performed according to the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) criteria. Predefined criteria concerned study design: longitudinal, ≥1 year follow-up, ≥50 exposed; exposure measures: organic dust, measured or estimated, in different occupational settings; and outcome measures: change in lung function measured by spirometry. Based on these criteria, 1580 potentially relevant publications were narrowed down to 20 included publications. Quality was evaluated and discussed based on six objectively defined criteria. Overall, 14 studies found some type of association ...
TY - JOUR. T1 - Insufficient zinc intake enhances lung inflammation in response to agricultural organic dust exposure. AU - Knoell, Daren L.. AU - Smith, Deandra A.. AU - Sapkota, Muna. AU - Heires, Art J.. AU - Hanson, Corrine K.. AU - Smith, Lynette M.. AU - Poole, Jill A.. AU - Wyatt, Todd A.. AU - Romberger, Debra J.. PY - 2019/8. Y1 - 2019/8. N2 - Organic dust exposure particularly within hog confinement facilities is a significant cause of airway inflammation and lung disease. In a cohort of Midwestern veterans with COPD and agricultural work exposure we observed reduced zinc intakes which were associated with decreased lung function. Because insufficient zinc intake is common within the U.S. and a potent modulator of innate immune function, we sought to determine whether deficits in zinc intake would impact the airway inflammatory response to hog confinement facility dust extract (HDE). Adult male C57BL/6 mice were randomized to zinc deficient or matched zinc sufficient diets for 3 weeks ...
TY - JOUR. T1 - Granulocyte aggregating activity in sera of workers exposed to textile dust inhalation. AU - Varga, L.. AU - Dervaderics, M.. AU - Zsiray, M.. AU - Kárpáthy, J.. AU - Füst, G.. PY - 1986/12/1. Y1 - 1986/12/1. N2 - The object of the present study was to determine the effects of controlled cotton dust exposure on the in vivo complement activation (C3), on the C5a-induced GAA, and on the level of circulating immune complexes (CIC) in the serum samples from textile workers and control subjects. A weak but well measurable GAA was found in most textile workers tested, which was significantly increased after textile dust inhalation. An association was found between complaints and objectives disorders of respiratory functions on the one hand and the GAA on the other hand, indicating a possible role of complement activation in the development of respiratory distress in textile workers.. AB - The object of the present study was to determine the effects of controlled cotton dust exposure ...
Cotton dust is defined as dust present in the air during the handling or processing of cotton which may contain a mixture of many substances including ground up plant matter, fiber, bacteria, fungi, soil, pesticides Inhalable Dust, Thoracic Dust and Respirable Dust are types of the dust. - 3
Dust control is the suppression of solid particles with diameters less than 500 micrometers. Dust poses a health threat to children,[12] older people, and those with respiratory illnesses.. House dust can become airborne easily. Care is required when removing dust to avoid causing the dust to become airborne. A feather duster tends to agitate the dust so it lands elsewhere. Products like Pledge and Swiffer are specifically made for removing dust by trapping it with sticky chemicals.. Certified HEPA (tested to MIL STD 282) can effectively trap 99.97% of dust at 0.3 micrometers. Not all HEPA (type/media) filters can effectively stop dust; while vacuum cleaners with HEPA (type/media) filters, water, or cyclones may filter more effectively than without, they may still exhaust millions of particles per cubic foot of air circulated. Central vacuum cleaners can be effective in removing dust, especially if they are exhausted directly to the outdoors.. Air filtering appliances differ greatly in their ...
The United States National Institute for Occupational Safety and Health, through an informal partnership with industry, labor, and the United States Mine Safety and Health Administration, has developed and tested a new instrument known as the Personal Dust Monitor (PDM). The new dust monitor is an integral part of the cap lamp that coal miners normally carry to work and provides continuous information about the concentration of respirable coal mine dust within the breathing zone of that individual. Previous laboratory testing demonstrated that there is a 95% confidence that greater than 95% of individual PDM measurements fall within ± 25% of reference measurements. The work presented in this paper focuses on the relationship between the PDM and respirable dust concentrations currently measured by a coal mine dust personal sampler unit utilizing a 10 mm Dorr-Oliver nylon cyclone. The United Kingdom Mining Research Establishment instrument, used as the basis for coal mine respirable dust ...
The Dry Dust Collectors research study covers each and every aspect of the Dry Dust Collectors market globally, which starts from the definition of the Dry Dust Collectors market and develops towards Dry Dust Collectors market segmentations. Further, every segment of the Dry Dust Collectors market is classified and analyzed on the basis of product types, application, and the end-use industries of the Dry Dust Collectors market. The geographical segmentation of the Dry Dust Collectors market has also been covered at length in this report.. The competitive landscape of the global market for Dry Dust Collectors is determined by evaluating the various market participants, production capacity, Dry Dust Collectors markets production chain, and the revenue generated by each manufacturer in the Dry Dust Collectors market worldwide.. The global Dry Dust Collectors market 2016 is also analyzed on the basis of product pricing, Dry Dust Collectors production volume, data regarding demand and Dry Dust ...
Aeolian dust is primarily found in arid and semi-arid regions. When ascending air stream occurs in these regions, bacterial cells on dust particles can be lifted and transported over long distances by air currents. In Japan where from 3,000 to 5,000 km away from Aeolian dust source regions, about 4 million tons of Asian dust particles are estimated to be fallen out each year. Therefore, it is necessary to assess bacterial impact by Asian dust, and which requires accurate understanding of variations of the bacterial abundance and bacterial community structure under diverse conditions in non-Asian dust days. In this study, we estimated variation of airborne bacterial abundance and bacterial community structure on both Asian dust days and non-Asian dust days for a long term, including four seasons in outdoor environment. We sampled aerosol particles from May 2013 to Apr. 2015 (total 44 times). Bacterial abundance and community structure were determined with 16S rRNA gene targeted qPCR and ...
For researches on toxic chemicals in settled indoor dust, selection of dust fraction is a critical influencing factor to the accuracy of human exposure risk assessment results. However, analysis of the selection of dust fraction in recent studies revealed that there is no consensus. This study classified and presented researches on distribution of toxic chemicals according to dust particle size and on relationship between dust particle size and human exposure possibility. According to the literature, beyond the fact that there were no consistent conclusions on particle size distribution of adherent fraction, dust with particle size less than 100 mu m should be paid more attention and that larger than 250 mu m is neither adherent nor proper for human exposure risk assessment. Calculation results based on literature data show that with different selections of dust fractions, analytical results of toxic chemicals would vary up to 10-fold, which means that selecting dust fractions arbitrarily will ...
This manual provides guidance for dust control methods and materials that can be used successfully at airfields and heliports to stop dust from forming naturally or as a result of mans activities and to control dust in areas directly impacted by mans activities. Dust develops naturally in denuded or sparsely vegetated areas and in most unpaved, sparsely vegetated areas occupied by man. (Mans activities may be detrimental to existing vegetation and create a dust problem.) Dust is created in unsurfaced areas subjected to concentrated foot or vehicular traffic, and is usually a problem on shoulders of surfaced airport and heliport traffic areas. Dust control becomes desirable when man needs to occupy land areas adjacent to the dust producing areas or is required to conceal military activities. The control of dust is also an important factor to consider for lengthening the life of vehicles and their engines.. ...
Mineral dust is a term used to indicate atmospheric aerosols originated from the suspension of minerals constituting the soil, being composed of various oxides and carbonates. Human activities lead to 30% of the dust load in the atmosphere. The Sahara Desert is the major source of mineral dust, which subsequently spreads across the Mediterranean (where is the origin of rain dust) and Caribbean seas into northern South America, Central America, North America, and Europe. Additionally, it plays a significant role in the nutrient inflow to the Amazon rainforest. The Gobi Desert is another source of dust in the atmosphere, which affects eastern Asia and western North America. Mineral dust is mainly constituted of the oxides (SiO2, Al2O3, FeO, Fe2O3, CaO, and others) and carbonates (CaCO3, MgCO3) that constitute the Earths crust. Global mineral dust emissions are estimated at 1000-5000 millions of tons per year, of which the largest part is attributed to deserts. Although this aerosol class is ...
Respiratory Symptoms and Diminished Lung Functions Associated with Occupational Dust Exposure Among Iron Ore Mine Workers in Iran
Abstract. At present, the air environment in China is characterized by complex pollution. In this paper, the pollutant sources, transport paths and aerosol optical properties during the dust pollution was conducted to analyse based on ground-based lidar, space-borne sensor and atmospheric transmission model. Firstly, the NMMB/BSC-Dust model, the VIIRS-Suomi NPP date and HYSPLIT were carried out to analyse the dust transport paths and the dust particle size, and then the concentration of particles was analysed. Finally, the optical properties of aerosol particles in the dust weather were studied. During the formation of this weather, there is high dust in the Gobi and Taklamakan deserts. With the influence of wind direction, the dust moves from north to south, and the dust load significantly increased in southern China. Dust at the low altitude is generally transported from the Taklamakan Desert, while dust at the high altitude is generally transported from the Gobi Desert. The hourly average ...
When the project timeline ended, an Institutional Review Board (IRB) protocol was successfully completed granting permission to conduct the aforementioned research. However, research could not begin until the new dust rule, Lowering Miners Exposure to Respirable Coal Mine Dust, Including Continuous Personal Dust Monitors, passed on May 1, 2014 (79 FR 24813). Under this new rule, the dust level may not exceed 1.5 mg/m3. Additionally, the rule requires mine operators to use continuous personal dust monitors (CPDMs) by February 1, 2016, for designated occupations (DO) to better monitor and comply with regulatory exposures.. Because this date occurred well after the project was ending, this effort was rolled into a new project, An Analysis of Health and Safety Management Practices through Multilevel Interventions, to further test and evaluate the intervention framework. Within this project, a task is written to involve miners in interpreting feedback from their CPDMs with the hope of decreasing ...
Several work environments have the potential for organic dust exposure including agricultural fields, grain handling and storage areas, animal confinement areas, and dairy barns. Grain handling and storage has been associated with respiratory symptoms and illnesses (such as chronic cough, sputum production, chronic bronchitis, grain fever (organic dust toxic syndrome), and nasal and skin irritation in exposed workers. Similar findings were found in several global areas. Grain elevator workers frequently report symptoms such as cough, sputum production, wheezing, and dyspnea, and have obstructive or restrictive impairments on pulmonary function testing. Respiratory symptoms and worsening of ventilatory function have also been reported with workers exposed to dusts from soybeans and burned rice husk in rice farmers. Growing crops such as rice, soybeans, and flowers has been associated with lung disease (32-43).. Work in dairy barns is also related to respiratory illness. Hay and preserved grasses ...
Associations between house dust-associated beta-(1,3)-glucan exposure and airway inflammatory reactions have been reported, while such exposures in early childhood have been suggested to protect against asthma and wheezing. Most epidemiological studies have used reservoir dust samples and an inhibition enzyme immunoassay (EIA) for beta-(1,3)-glucan exposure assessment. The objective of this ... read more study was to develop inexpensive but highly sensitive enzyme immunoassays to measure airborne beta-(1,3)-glucans in low-exposure environments, like homes. Specificities of available anti-beta-(1,3)-glucan antibodies were defined by direct and inhibition experiments. Three suitable antibody combinations were selected for sandwich EIAs. beta-(1,3)-Glucans in passive airborne dust collected with an electrostatic dust fall collector (EDC) and floor dust from seven homes were measured with the three EIAs. Floor dust samples were additionally analyzed in the inhibition EIA. The sandwich EIAs were ...
We evaluate why water sucks for dust control, what can make water for dust control and cement the discussion with a case for drill and blast dust control.
OSHA cites Thomas Moore Feed of Navasota, Texas, for 18 violations. HOUSTON - Combustible dust left uncontrolled or suspended in the air can explode, which was one of many safety hazards discovered after an inspection at the Thomas Moore Feed facility in Navasota, Texas, by the U.S. Department of Labors Occupational Safety and Health Administration. OSHA inspectors found 18 violations and proposed a penalty of $58,100.. The agencys Houston North Area Office did its inspection in September 2014 following a complaint. OSHA cited Thomas Moore Feed for not protecting workers from a potential dust explosion; allowing openings in the dust collection exhaust path of the hammer mill; failing to keep dust accumulations below 1/8 inch in a priority area; not maintaining a functioning monitoring device on the dust collector or making repairs to the dust collector; and not having an adequate dust emission source. Airborne grain dust in the right concentration can become explosive and must be properly ...
Global measurements of the elemental composition of fine particulate matter across several urban locations by the Surface Particulate Matter Network reveal an enhanced fraction of anthropogenic dust compared to natural dust sources, especially over Asia. We develop a global simulation of anthropogenic fugitive, combustion, and industrial dust which, to our knowledge, is partially missing or strongly underrepresented in global models. We estimate 2-16 μg/m3 increase in fine particulate mass concentration across East and South Asia by including anthropogenic fugitive, combustion, and industrial dust emissions. A simulation including anthropogenic fugitive, combustion, and industrial dust emissions increases the correlation from 0.06 to 0.66 of simulated fine dust in comparison with Surface Particulate Matter Network measurements at 13 globally dispersed locations, and reduces the low bias by 10% in total fine particulate mass in comparison with global in situ observations. Global ...
Dust suppression system - stone crusher dust suppression ... dust suppression system . we like to introduce our new innovative product for dust suppression, based on a system of water/air spraying: the mobile dust system which water and dust particles collide to form agglomerates by the addition of micron size water droplets to dust and dust becomes too heavy to remain airborne and they.. ...
In December 1995 we took dust samples from nine pairs of pillows and analysed them for Der p I. Each pair consisted of one feather filled pillow and one filled with polyester fibre; these had been used together on the same adult bed for more than six months to ensure that the environmental exposures of the pillows in each pair were similar. The pillow fillings were encased in closely woven cotton fabric. Two of the subjects in our study slept with the polyester filled pillow on top, four with the feather filled pillow on top, and three had no preference. We took dust samples with a portable Hitachi CV-2500 vacuum cleaner with a sock attachment, vacuuming each pillow for three minutes on each side, a total of six minutes per pillow. We sieved the dust collected to remove fluff and large particles and weighed the resulting fine dust. We then analysed this dust for Der p I content using monoclonal antibody enzyme linked immunosorbent assay (ELISA).2 The between batch coefficient of variation of the ...
The utility model discloses an extraction dust removable device of a mine drilling machine. The extraction dust removable device of the mine drilling machine comprises a dust collecting barrel, a horn-mouth sleeve is arranged at one end of the dust collecting barrel, a bearing installation seat is arranged at the other end of the dust collecting barrel, a beating is arranged in the bearing installation seat, and a rotating head is matched with the bearing installation seat through the bearing. A bearing limit end cover is arranged on the end portion of the bearing installation seat, an outer barrel is sleeved on the dust collecting barrel, a fixed support is arranged on the middle segment of the dust collecting barrel, a connecting support lug is arranged on one end, opposite to the fixed support, of the outer barrel, the outer barrel and the fixed support are locked through a bolt, a seal rubber sleeve is arranged between the outer barrel and the dust collecting barrel, one end of the seal rubber
Organic dust consists of particles with a biological origin. Airborne levels of bacteria, fungi, endotoxins, and glucans have been investigated in epidemiological studies of mucous membrane irritation, inflammation, and airway obstruction. Organic dust can be measured by gravimetry of filter samples. Microorganisms can be quantified by culture, microscopic, and DNA-based methods. Culture methods underestimate microbial exposure and have poor precision. However, high sensitivity and identification of species that indicate fungal contamination have advantages in indoor air studies. Microscopic and DNA-based methods quantify microorganisms independent of cultivability. Specific organisms can even be quantified with molecular techniques. Quantification of specific organic dust components is preferred to dust levels. However, no occupational exposure limits exist for specific agents, although criteria for endotoxin and fungal spores have been proposed. In exposure assessments of microbial agents, ...
Amazonom: Dustick Duster (with 21-foot reach) by ...- carpenter bee dust insecticide applicator ,Purchased this product a little over a year ago to treat carpenter bee holes. Although the duster worked as advertised, after a year, it started leaking the insecticide dust from the top of the reservoir. As much dust now comes from this seam as goes out the end of the applicator…Puffer Hand Duster , J.T.Eaton Duster #530 Bellow DusterBellow Bulb Hand Duster is a perfect duster for small dusting applications. This bellow duster has a spring that is compressed in order to release the dust. This duster will hold between 4 oz to 8 oz of dry dust. It would depend on the dry weight of the dust. Has a rod for easy cleaning. Can be held upright, or inverted for better dust dispersion. Fill the bellow duster half way with a dust ...
Background: There is inconclusive evidence concerning cancer risks of organic dusts. Aim: The carcinogenic exposures are mainly inhalatory and the authors therefore studied associations between occupational exposure to eight different organic dusts and respiratory cancers in Finland. Methods: The authors followed up a cohort of all economically active Finns born between 1906 and 1945 for 30 million person-years during 1971-95. Incident cases of nasal, laryngeal, and lung cancer and mesotheliomas were identified through a record linkage with the Finnish Cancer Registry. Occupations from the population census in 1970 were converted to exposures to eight organic dusts with a job-exposure matrix (FINJEM). Cumulative exposure (CE) was calculated as a product of prevalence, level, and estimated duration of exposure. Standardised incidence ratios (SIR) and 95% confidence intervals (CI) adjusted for age, period, and social class were calculated for each organic dust using the economically active ...
The Industry Leader in Dust Collection - Oneida Air Systems- book on saw dust collection ,Dust Collectors. Dust Collection Systems. For over two decades Oneida Air Systems has been renowned as the industry leader in dust collection - never compromising on performance or filtration - to ensure the safest and healthiest work environment for shop owners. Awards & Recognition. Competitive Advantages.Wood Dust - Overview , Occupational Safety and Health ...Wood dust becomes a potential health problem when wood particles from processes such as sanding and cutting become airborne. Breathing these particles may cause allergic respiratory symptoms, mucosal and non-allergic respiratory symptoms, and cancer. The extent of these hazards and the associated wood types have not been clearly established ...
that construction workers want more emphasis placed on the dangers of construction dust.. More than 600 people working within the construction industry took part in the survey. Of the 600 respondents, 61 per cent were health and safety advisors for the sector.. The survey aimed to shed a light on the health problems surrounding construction dust and how they can be managed.. In the UK, 500 people working within the construction industry die from lung cancers as a result of silica dust. As well as cancer, construction dust can cause other diseases of the lungs such as asthma, silicosis and chronic obstructive pulmonary disorder.. In response to a question about how much of a priority the industry currently makes tackling dangers of construction dust, 44 per cent answered very little. Of the respondents, just 12.5 per cent believed that construction dust was a priority health issue.. As well as a lack of priority, the respondents also identified an inadequate awareness of the risks among ...
Question: How many dust storms have you seen? Do you have memories of a particular storm?. Answer: I see small dust devils pretty often - the conditions here make them possible. Sometimes they look like small tornadoes, a funnel cloud with debris in it. I was in a dust storm in the Sahara once. It came up so fast, we were sitting around after dinner, just relaxing and then we had to jump up and run into the tent. The sand was blowing hard and stinging my skin and eyes. Our Berber guide wrapped up in a blanket and huddled near the tent; he said that it was his tradition to stay outside in it. They had stories of camels and tents being buried by the sand. The storm cleared in a few hours and then the night was beautiful, clear skies full of stars.. Question: What tips do you have to someone that comes face to face with a dust storm?. Answer: Take cover if possible. Try to protect your breathing (wet bandana, dust mask).. Question: What is one thing youve learned (important lesson) that you would ...
2021-08-20. Indoor dust is an important matrix that exposes humans to a broad spectrum of chemicals. The information on the occurrence of contaminants of emerging concern (CECs), their metabolites, and re-emerging contaminants in indoor dust is rather limited. As the indoor environment is exposed to various chemicals from personal care products, furniture, building materials, machineries and cooking/cleaning products, there is a high chance of the presence of hazardous contaminants in indoor dust. In the present study, dust samples were collected from four different micro indoor environments (photocopying centres, residential houses, classrooms, and ATM cabins) located in an urban environment located in Indias southwestern part. The collected samples were subjected to ATR - FTIR and LC-Q-ToF-MS analyses. The ATR - FTIR analysis indicated the presence of aldehydes, anhydrides, carboxylic acids, esters, sulphonic acids, and asbestos - a re-emerging contaminant. A total of 19 compounds were ...
The dust particles may not seen with clear eye and may seem harmless at first sight, but the fact is that these are harmful for the respiratory system and lungs of human body, as they cause asthma and various inter-body allergies. Some harmful consequences of dust particles are -. The basic harm caused by the dust particles are asthma and allergies. The intensity of the allergies depends upon the amount of dust inhaled. If these are inhaled deeply, the harm can be chronic. Another factor is the length of exposure to the dust particles. But the main factor to be noticed is the pathway of inhalation. If the dusty air is inhaled by nose, it will start its effect from the nose to the lungs and if it is done by mouth, then your food pipe along with the respiration pipe is in danger.. ...
Dust observations made by GLOBE can help scientists in several ways. Your observations provide direct evidence of a dust storm in your area. Scientists can use YOUR OBSERVATIONS to check if their models have done a good job to predict these dust storms. In addition, your data will be used to verify satellite observations. Dust products from satellites are often compared to other independent data sources, such as ground monitors and aircraft measurements. Your GLOBE observations can be part of the ground truth data set. This is VERY IMPORTANT to help communities prepare and avoid harmful impacts of dust storms. Your observations with scientists help alert or tell students or people with asthma when to stay indoors or even let farmers and ranchers know which days would be better to till their land. Your observations also help warn construction workers when to wear protective equipment to reduce risks of Valley fever infection. Truck drivers can plan their trips to avoid roadblocks and costly ...
Abstract. North African dust reaches the southeast United States every summer. Measurements taken in Miami, Florida indicate that more than one-half of the surface dust mass concentrations reside in particles with diameters less than 2.1 μm, while vertical profiles of micropulse lidar depolarization ratios show dust reaching above four km during pronounced events. These observations are compared to the representation of dust in the MERRA-2 aerosol reanalysis and closely-related GEOS-5 Forward Processing (FP) aerosol product, both of which assimilate satellite-derived aerosol optical depths using a similar protocol and inputs. These capture the day-to-day variability in aerosol optical depth well, in a comparison to an independent sun-photometer-derived aerosol optical depth dataset. Measured near-surface dust mass concentrations slightly exceed model values, with most of the modeled dust mass in diameters between 2-6 μm. Modeled-specified mass extinction efficiencies equate light extinction ...
Results for dust emissions monitor (dust monitoring) equipment from Aloa, AMETEK Land, Codel and other leading brands. Compare and contact a supplier near you ...
Introduction: Exposure to respirable fraction of cement dust and its crystalline silica content is the most important occupational risk factor in cement industries requiring more evaluation and monitoring. This study aimed to assess exposure to crystalline silica and cement dust among workers of a cement industry in Saveh city, Iran. . Material ...
Mix a teaspoon of organic apple cider vinegar in glass water and drink the solution thrice day essentially dip spoon wasabi lick it off to control violent sneezing. It reduces the production of mucus and cleanses bodys lymphatic system to control an allergic reaction. Wasabi, a member of the horseradish family, is pale green paste dust allergy. Top 10 best allergy remedies earth clinic. The dust allergies can effectively be treated with apple cider vinegar apr 26, 2012 is one of the oldest health remedies, dating back to for mites and microscopic crud that make people miserable. Opposite effect releasing once filtered bacteria and dust back into the air. Some basic precautions include avoiding physical interaction with plants, dust and animals. Best home remedies treatment for prevention of dust allergy 7 natural relief allergies 26 proven to get rid. Apple cider vinegar may 28, 2015 get rid of it using home remedies for seasonal allergies. To pollen, dust or food, the warm seasons may ...
FFP3 NR Premium Respirator with Valve. RXXX. Add to My List. FFP2S NR Dust/Mist Respirator chinese manufacturer valve en 149 ffp3 nr d dust mask Add to My List. FFP2 NR Dust/Mist Respirator with Valve (Arrow) RXXX. Add to My List. FFP1 NR D Dust/Mist Respirator. RXXX. Add to My List. FFP1 NR Foldable Dust/Mist Respirator chinese manufacturer valve en 149 ffp3 nr d dust mask 6500 Series Half Mask Small Quick Latch. RXXX. Add to My List chinese manufacturer valve en 149 ffp3 nr d dust ...
The productivity of the Amazon rainforest is constrained by the availability of nutrients, in particular phosphorus (P). Deposition of long-range transported African dust is recognized as a potentially important but poorly quantified source of phosphorus. This study provides a first multiyear satellite-based estimate of dust deposition into the Amazon Basin using three dimensional (3D) aerosol measurements over 2007-2013 from the Cloud-Aerosol Lidar with Orthogonal Polarization (CALIOP). The 7-year average of dust deposition into the Amazon Basin is estimated to be 28 (8~48) Tg a -1 or 29 (8~50) kg ha -1 a -1. The dust deposition shows significant interannual variation that is negatively correlated with the prior-year rainfall in the Sahel. The CALIOP-based multi-year mean estimate of dust deposition matches better with estimates from in-situ measurements and model simulations than a previous satellite-based estimate does. The closer agreement benefits from a more realistic geographic definition ...
High quality 3 Ply Disposable Valved Dust Mask Protective Activated Carbon Dust Mask from China, Chinas leading Valved Dust Mask product market, With strict quality control Valved Dust Mask factories, Producing high quality 3 Ply Disposable Valved Dust Mask Protective Activated Carbon Dust Mask products.
large image from March 6, 2001 (2200 kb) While the northeastern United States experienced a major snowstorm, northeastern China was hit by yet another major dust storm yesterday and today (March 5 6, 2001). In these Sea-viewing Wide Field-of-view (SeaWiFS) images of the area, clouds (white pixels) can easily be distinguished from the dust (light brown pixels). In the March 5 scene, the heaviest visible concentrations of dust are blowing southeastward from the Gobi Desert, between the Bohai Sea and the Mongolian border. South of the dust storm (in the lower left corner of the image), over the capital city of Beijing, there also appears to be a thick shroud of haze (greyish pixels), possibly from industrial emissions.. The March 6 SeaWiFS image over the region shows the dust storm from the mainland blowing eastward across Korea and Japan, and out into the Pacific Ocean.. Provided by the SeaWiFS Project, NASA/Goddard Space Flight Center, and ORBIMAGE ...
© 2019 The Author(s) 2019. Published by Oxford University Press. Many workers are daily exposed to occupational agents like gases/fumes, mineral dust or biological dust, which could induce adverse health effects. Epigenetic mechanisms, such as DNA methylation, have been suggested to play a role. We therefore aimed to identify differentially methylated regions (DMRs) upon occupational exposures in never-smokers and investigated if these DMRs associated with gene expression levels. To determine the effects of occupational exposures independent of smoking, 903 never-smokers of the LifeLines cohort study were included. We performed three genome-wide methylation analyses (Illumina 450 K), one per occupational exposure being gases/fumes, mineral dust and biological dust, using robust linear regression adjusted for appropriate confounders. DMRs were identified using comb-p in Python. Results were validated in the Rotterdam Study (233 never-smokers) and methylation-expression associations were assessed using
It is currently difficult to obtain accurate fine dust information in residential areas due to the insufficient number of air quality monitoring systems and spatial imbalances. Therefore, a detailed particulate matter dispersion model including factors such as land use and meteorological information was developed in this study and used to create fine dust concentration distribution maps. The fine dust concentration distribution maps currently available to citizens were compared with those obtained by dispersion modeling, and population distribution data were employed to compare the populations exposed to fine dust according to the two methods. The results of the existing method and the developed particulate matter dispersion model differed significantly. For instance, the PM2.5 concentrations in Daejeon, South Korea, on February 17, 2018, were 56% “Good” and 44% “Moderate,” according to the existing method, while they were 31% “Good,” 26% “Moderate,” 28%
A dust mite allergy is in fact a reaction to proteins in the excretion of the dust mites. Yes, thats right, youre allergic to dust mite poo.. All homes in the UK have dust mites, but due to their tiny size (around 0.25-0.3mm) and translucent bodies they are almost invisible to the naked eye (dont worry - unless you have a dust mite allergy, they are harmless).. When the allergenic proteins are breathed in or make contact with the skin of an allergic person, their body reacts with symptoms - wheezing, sneezing, runny nose and soreness and redness of the skin and eyes.. Dust mites thrive in warm humid environments, our beds being one of their favourite spots. We spend about a third of our day in bed, shedding skin cells and creating moisture with our breath and bodies which the microscopic mites need to live on.. ...
Objectives The inhalation of dust from swine confinement buildings causes inflammatory responses in the airways with a rise of interleukin-6 (IL-6). The purpose of this study was to confirm the increase in serum IL-6 after inhalation of swine dust and investigate a possible increase in plasma fibrinogen.. Methods Eight healthy nonsmoking volunteers inhaled dust for 4 hours inside a swine confinement building. Inhalable dust and endotoxin were sampled. The concentrations of IL-6 and fibrinogen were determined in serum and plasma.. Results The study showed a clear increase in the concentrations of IL-6 and fibrinogen after exposure.. Conclusion As fibrinogen is an important risk factor for ischemic heart disease, the increased concentration of fibrinogen among persons exposed to swine dust may increase the risk for this disease.. ...
The design of pulse injection coal mill explosion proof Dust collector way out dust in pulverized coal dust collecting dust in the process because speed is very easy to create the accumulation, so as to form the hidden danger of accident, a lot of coal dust product in the filter bag with the surface, in order to make is located in the dust collector different locations of the filter bag can ,. Sales Online ...
An overview is given of two new developments in mine atmospheric monitoring. A new personal respirable dust monitor ( PDM) that gives realtime readings is discussed. The unit is mounted within the miners cap lamp battery and internally measures the true particle mass of dust collected on its filter. Samples are available for later mineralogical analysis and results do not exhibit the same sensitivity to water spray as optically based measurement approaches. The technique achieves microgram -level mass resolution even in the hostile mine environment and reports dust loading data on a continuous basis. The monitor has been evaluated under an Australian Coal Association Research Program (ACARP) grant and is being adopted for statutory mine respirable dust determinations in the US. It has particular application for determining high source locations and efficiency of engineering means of suppression and other approaches to handling the problem. It has been recognised that the PDM s unique measurement
Mundtlig præsentation: Inverse associations between occupational organic dust exposure and incidence of chronic obstructive pulmonary disease (COPD) - healthy worker survivor bias? ...
High quality Intelligent Floor Robot Vacuum Cleaner , Robotic Wet Dry Vacuum Cleaner 14.8V from China, Chinas leading Floor Robot Vacuum Cleaner product market, With strict quality control Floor Robot Vacuum Cleaner factories, Producing high quality Intelligent Floor Robot Vacuum Cleaner , Robotic Wet Dry Vacuum Cleaner 14.8V products.
China DC 12V 90W Portable Car Vehicle Auto Vacuum Cleaner Wet Dry, Find details about China Vacuum Cleaner, Vacuum Cleaner Wet Dry from DC 12V 90W Portable Car Vehicle Auto Vacuum Cleaner Wet Dry - Yuyao City Win Electric Appliances Co., Ltd. offers 3,251 4 in 1 vacuum cleaner products. About 30% of these are vacuum cleaners, 17% are vacuum cleaner, and 2% are vacuum cleaner parts. A wide variety of 4 in 1 vacuum cleaner options are available to you, such as ce, cb, and etl.
Abstract. The significant impact of dust deposition on heterotrophic bacterial dynamics in the surface oligotrophic ocean has recently been evidenced. Considering the central role of bacteria in the microbial loop, it is likely that dust deposition also affects the structure and the functioning of the whole microbial food web. In the frame of the DUNE project, aiming to estimate the impact of dust deposition on the oligotrophic Mediterranean Sea through mesocosm experiments, the main goal of the present paper was to assess how two successive dust deposition events affect the dynamics of the microbial food web. The first dust seeding delivered new P and N to the amended mesocosms and resulted in a pronounced stimulation of bacterial respiration. It also induced pronounced, but transient, changes in the bacterial community composition. No significant effects were observed on the abundances of viruses and heterotrophic nanoflagellates. The second dust seeding also delivered new P and N to the ...
Dry Vacuum Cleaner Price - Select 2017 high quality Dry Vacuum Cleaner Price products in best price from certified Chinese Wet Vacuum Cleaner manufacturers, Cyclone Vacuum Cleaner suppliers, wholesalers and factory on
Westerly driven, long-range transportation of dust particles in elevated aerosol layers (EALs) is a persistent phenomenon during spring and summer over the Indian subcontinent. During the snow accumulation season, EALs transport substantial amounts of dust to the snow-covered slopes of high-mountain Asia (HMA). Here we use multiple satellite-based estimates to demonstrate a robust physical association between the EALs and dust-induced snow darkening over HMA. Results from a fully coupled atmosphere-chemistry-snow model support these observations, revealing across HMA a signature of increasing dust-induced snow darkening with surface elevation that peaks near 4,500 m. Moreover, the influence of dust on snow darkening is greater than that of black carbon above 4,000 m. Our findings suggest a discernible role of dust in the observed spatial heterogeneity of snowmelt and snowline trends over HMA and highlight an increasing contribution of dust to snowmelt as the snowline rises with warming. Dust deposition
The study was conducted among 92 male workers, divided into two groups depending on workplace and level of inorganic dust containing free crystalline SiO2 in the work environment, and 43 healthy workers without exposure to dust aerosols. The measured inhalable and respirable dust concentrations, as well as the concentration of free crystalline silica (FCS) in the respirable fraction were different for the two groups, but the percentage of free crystalline silica in the respirable fraction was almost identical. Significantly higher neopterin levels were found in workers exposed to dust, compared to the control group: 12.72 nmol/L and 6.32 nmol/L respectively (p,0.05). No significant difference was found between serum neopterin levels in both groups of the exposed workers. Among the groups with different length of service, a statistically higher neopterin level was evident only in the workers with length of service less than 10 years (p,0.05). The correlation analysis did not find a significant ...
A Guide to Occupational Exposure to Wood, Wood Dust and Combustible Dust Hazards Bobby R. Davis Series Editor N. C. Department of Labor Division of Occupational Safety and Health 1101 Mail Service Center Raleigh, NC 27699- 1101 Cherie K. Berry Commissioner of Labor N. C. Department of Labor Occupational Safety and Health Program Cherie K. Berry Commissioner of Labor OSHA State Plan Designee Allen McNeely Deputy Commissioner for Safety and Health Kevin Beauregard Assistant Deputy Commissioner for Safety and Health Acknowledgments A Guide to Wood Dust was originally prepared by Health and Hygiene Inc., whose president, Harold Imbus, M. D., Sc. D., conducted studies about how wood dust affects workers. Dr. Imbuss studies were cited by OSHA in its final rule regarding wood dust. This edition was revised and updated June 2005, incorporating material from several addi-tional sources referenced within the guide. This guide is intended to be consistent with all existing OSHA standards; therefore, if an ...
One study in particular examined dust emission during the cutting of polyurethane-impregnated bandages in a hospital environment.1 When hospital staff removed splinting bandages with a power saw, a large amount of dust was generated. While the PU-impregnated bandage produced a lower airborne dust concentration than other bandage materials, the size and nature of the dust became a concern.. Like all particles, their aerodynamic diameters determine if and for how long they remain airborne, their likelihood of being inhaled, and their site of deposition in the respiratory system [respirable dust].6. In the studys findings, 90% of the particles in the dust cloud generated by the PU-impregnated bandage were considered respirable and contained fragments of PU resin.. In another study, laboratory rodents where exposed by inhalation to polyurethane foam particles (20 mg/m3) for 5 days/week for 6 weeks.2. Early findings showed the particles had deposited in the respiratory bronchi and in the subpleural ...
Abstract. The main objectives of this research were to determine what aerosols were present by taking total dust (TD) samples and thoracic particulate mass samples (TPM) on farms and in grain elevators. Cascade impactors were used to characterize size distribution of dust and endotoxins at each site. Total dust concentrations on farms had a geometric mean 3.4 mg/m3 and 3.3 mg/m3 in elevators. The geometric mean (GM) concentrations for the TPM were 2.4 mg/m3 on farms and 1.0 mg/m3 in elevators. Endotoxin concentrations as geometric means were alarming at 3,175 EU/m3 total dust and 983 EU/m3 by TPM on farms. In elevators, the GM concentrations for endotoxins were 2,534 EU/m3 total dust and 526 EU/m3 by TPM. The mass median aerodynamic diameter (MMAD) for endotoxins on farms was 8.0 mm and 6.5 mm in elevators. The paired t-test was applied to the log radios of endotoxin concentrations (EU/m3) and dust concentrations (mg/m3), for paired samples of the TD and TPM. A higher content of endotoxin was ...
This Saachi bagged vacuum cleaner can be rotated 360 degrees, which makes it easy for you to move and clean around your house. The two big back wheels of the appliance provide stability while moving around. It has a convenient carrying handle. The super long 5 meters power cord with two easy fit tubes makes it easy for you to take care of large areas in one go.This Saachi carpet vacuum cleaner has a dust full indicator that notifies you when the dust bag is full. The blow function of this cutting-edge vacuum cleaner makes it easier to get rid of the dust from the blind angle. The 1380W powerful motor generates high suction prowess to get rid of the dust quickly and efficiently.. ...
High quality Slim Design Wet And Dry Robot Vacuum Cleaner Tangle Free For Pet Long Hair from China, Chinas leading Wet And Dry Robot Vacuum Cleaner product market, With strict quality control Wet And Dry Robot Vacuum Cleaner factories, Producing high quality Slim Design Wet And Dry Robot Vacuum Cleaner Tangle Free For Pet Long Hair products.
Great but Cheap Home Intelligent Vacuum Cleaner, Cheap Home Appliances,Vacuum Cleaners,Vacuum Cleaner Parts,Home & Garden, as well as Cheap and more! Online Get Best Home Intelligent Vacuum Cleaner You Need from, A Leading Online Retailer!
SR3 Technologies - Industrial Vacuum Cleaner, Vacuum Cleaner Spares Parts & Wet & Dry Vacuum Cleaner for commercial use Manufacturer from New Delhi, Delhi, India
The high resolution stereo camera on board ESAs Mars Express captured this impressive upwelling front of dust clouds - visible in the right half of the frame - near the north polar ice cap of Mars in April this year.. It was one of several local small-scale dust storms that have been observed in recent months at the Red Planet, which is currently enduring a particularly intense dust storm season. A much larger storm emerged further southwest at the end of May and developed into a global, planet-encircling dust storm within several weeks.. The intensity of this major event means very little light from the Sun reaches the martian surface, a situation extreme enough that NASAs 15-year old Opportunity rover has been unable to recharge its batteries and call home: it has been in hibernation mode since mid-June.. Dust storms on Mars occur regularly during the southern summer season when the planet is closer to the Sun along its elliptical orbit. The enhanced solar illumination causes stronger ...
IMASS A1 Automatic Rechargeable Robotic Vacuum Cleaner . The robotic vacuum cleaner has the ability to return to its charging home once battery is low, comes in a 800ml large dust bin, thus you dont have to remove dusts so often, built-in with a 2000mAh large capacity battery that ensures the long standby time (working 90-120min after full charged), 1000Pa big suction to clean dust, dirt and .... Get Price ...
Best Vacuum Cleaners. We have all used a vacuum cleaner at one point in our lives. We have also seen other people use it to clean either a floor carpet, couches or even a car. This is because of the way they have become an integral part when it comes to indoor cleaning. The first vacuum cleaner was invented in 1869 as a hand pumped cleaner. We have witnessed growth in technology and the vacuum cleaner being made into a high-tech cleaning equipment. Normally, vacuum cleaners have not been made the same way. This is due to the fact that there are different brands in the market that bring about the difference. It is wise for a buyer to consider some of the below factors in determining the best vacuum cleaner. The main factor to look at is the suction power of a vacuum cleaner. Vacuum cleaners have been made to work in a way that the suction works as a result of a built-in motor. A strong motor increases the suction power of a vacuum cleaner thus increasing its effectiveness in dust and dirt ...
YIYUAN 32mm Dusting Brush Dust Tool Attachment for Vacuum Cleaner Round Horse Hair: YIYUAN 32mm Dusting Brush Dust Tool Attachment for Vacuum Cleaner Round Horse Hair: Kitchen & Home,100% Satisfaction Guaranteed,Here are your unexpected goods,Fast, Free Shipping and Returns,Best prices,Online shopping provides you with exquisite goods.
Dry Concrete Dust Industrial Vacuum Cleaner With HEPA offered by China manufacturer Bycon. Buy Dry Concrete Dust Industrial Vacuum Cleaner With HEPA directly with low price and high quality.
Dear colleagues, a dedicated AEROCOM-DUST analysis is a good idea and is quite timely considering the ever-increasing interest in dust aerosol, and I would be happy to contribute. I agree with Michael that some new experiments would be needed, which obviously have to be carefully designed. To have Paul lead a working group on this is great. I suggest to also include Stephanie Woodward from the Hadley Center in this exercise. ([email protected]). After having looked at the WIKI page, here are some additional comments: - What is the best choice for an anthropogenic dust source? While the estimates for total anthropogenic dust contribution to total dust are now considerably lower compared to the IPCC 2001 number, this emission and the geographical distribution is still very uncertain. In addition to direct anthropogenic dust sources as from agricultural soil disturbance it would be nice to have a second order anthropogenic dust source that is caused by anthropogenic climate change, ie ...
Dear colleagues, a dedicated AEROCOM-DUST analysis is a good idea and is quite timely considering the ever-increasing interest in dust aerosol, and I would be happy to contribute. I agree with Michael that some new experiments would be needed, which obviously have to be carefully designed. To have Paul lead a working group on this is great. I suggest to also include Stephanie Woodward from the Hadley Center in this exercise. ([email protected]). After having looked at the WIKI page, here are some additional comments: - What is the best choice for an anthropogenic dust source? While the estimates for total anthropogenic dust contribution to total dust are now considerably lower compared to the IPCC 2001 number, this emission and the geographical distribution is still very uncertain. In addition to direct anthropogenic dust sources as from agricultural soil disturbance it would be nice to have a second order anthropogenic dust source that is caused by anthropogenic climate change, ie ...
Single Phase Dust Extractor Industrial Vacuum Cleaner With HEPA offered by China manufacturer Bycon. Buy Single Phase Dust Extractor Industrial Vacuum Cleaner With HEPA directly with low price and high quality.
A physician will normally direct an individual to take one of the listed medications to help nasal allergy symptoms: Antihistamines. Kill Mites with Low Humidity Natural Treatments for a Dust Allergy. An allergy test can help determine if you are allergic to dust mites. Electrostatic filters may be more effective in filtering out dust, mites and inhalant particles. If tests show that you are allergic to house dust mites, … Users should not, under any circumstances, stop or modify their prescribed dosage on account of the improvement or disappearance of allergic reactions during ALLERBED anti dust mite treatment without first consulting their allergy specialist or the GP who prescribed the medication. They need little water to survive (they absorb it through the air) and live off an endless supply of food that humans and pets produce on a daily basis. Allergy shots dust mites. The best way to prevent an allergic reaction is to avoid the substance that youre allergic to, although this is not ...
Satellite data estimate a high dust deposition flux (approximately 18 g m(exp-2 a(exp-1) into the northern South China Sea (SCS). However, observational evidence concerning any biological response to dust fertilization is sparse. In this study, we combined long-term aerosol and chlorophyll-a (Chl-a) measurements from satellite sensors (MODIS and SeaWiFS) with a 16-year record of dust events from surface PM10 observations to investigate dust transport, flux, and the changes in Chl-a concentration over the northern SCS. Our result revealed that readily identifiable strong dust events over this region, although relatively rare (6 cases since 1994) and accounting for only a small proportion of the total dust deposition (approximately 0.28 g m(exp-2 a(exp-1), do occur and could significantly enhance phytoplankton blooms. Following such events, the Chl-a concentration increased up to 4-fold, and generally doubled the springtime background value (0.15 mg m(exp-3). We suggest these heavy dust events ...
The new HemiPleat® FR Carbon dust collector filter from Camfil Air Pollution Control (APC) is the first to combine flame retardant and conductive properties in a single filter that also offers high efficiency, long service life, and energy-efficient performance. The special carbon-impregnated filtration media is designed for dust-handling applications that require flame resistance as well as dissipation of static charges - including many metal dusts; fumed silica dust; plastic, PVC or composite dusts; pharmaceutical dusts and carbon black/toner dusts. The cartridge filters are especially suited . . .
dust mites - MedHelps dust mites Center for Information, Symptoms, Resources, Treatments and Tools for dust mites. Find dust mites information, treatments for dust mites and dust mites symptoms.
200 Pcs 3-Ply Medical Surgical Face Masks Anti-Dust Protective Face Mask Anti Virus Nonwoven Disposable Face Masks breathable anti dust dust surgical medical face mask anti formaldehyde 5-layer Non-Disposable Face Mask, Oral And Nasal Hygiene, Breathable, Dustproof, Nonwoven Fabrics, Work Mask 500 pcs. breathable anti dust dust surgical medical face mask anti formaldehyde 3Ply Disposable Face Mask, Anti Virus Medical Surgical, Nose and Mouth Mask For Men And Women Indoor And breathable anti dust dust surgical medical face mask anti formaldehyde. ...
5PCS KN95 Dust Masks Full Face Mask Protection Filtration,95% Safety N95 Mask Dust Masks(Grey) $35.99 $11.59 (7) 67%OFF. 10PCS KN95 Dust Masks Full Face Mask Protection Filtration,95% Safety N95 Mask Dust Masks(Grey) $49.99 $16.59 (12) 66%OFF. 20PCS KN95 Dust Masks Full Face Mask Protection Filtration,95% Safety N95 Mask Dust Masks(Grey) $69.99 ...
Best Friction Dust Dealers. Find the list of best Friction Dust suppliers & Manufacturers. Yellow Pages Directory of Friction Dust, Friction Dust manufacturers, Traders, and Friction Dust, Friction Dust Suppliers & Dealers in India.
Dust builds up throughout your home. The dust may contain substances that trigger asthma symptoms, such as wheezing or coughing, or anotherallergic reaction, such as the rash ofatopic dermatitisor stuffy nose ofallergic rhinitis. These substances are calledallergens.Dust mitesare another example of an allergen.. Although there is no strong evidence that reducing dust and dust mites in your home will reduce symptoms ofasthmaor allergic reactions, the following steps may be helpful.. ...
Proscenic 880L Alexa Robotic Vacuum Cleaner Auto Robot Dry Wet Mop Sweep 2000Pa. Map Navigation, self Docking, Carpet floor Edge Cleaner. Proscenic 800L Vacuum cleaner robot, 1. The unique square design makes the Proscenic 880L be better to clean the edges and corners, Widening the diameter of the suction opening To 20cm(Others only 15-17cm), improving the cleaning efficiency and cleaning the Larger dust. Suction Power Robot Vacuum Cleaner. 2 in 1 Mop design. Proscenic 880Ls Mop Is composed of two parts. Wet Mopping and dry wipe. Brush -- Fitted to the ground environment, Improve your ability to cross obstacles, effectively preventing hair entanglement, improving obstacles and cleaning. IPNAS Programmed Cleaning System Automatic Navigation. The Automatic Navigation provides precise location, smart mapping and follows a logical cleaning pattern (not random) that covers all of the floor. This machine has no remember function, can not start from the place where he stopped last time. 3 Speed ...
A steady spike in purchasing power, growing awareness of health and hygiene concerns, and a greater number of women joining the workforce leave precious little time for household chores, fuelling the vacuum cleaner market. The growth of the vacuum dust filter market is directly linked to that of the vacuum cleaner market. Furthermore, continuous innovations in vacuum cleaners coupled with an increasingly tech-savvy population is predicted to benefit the global vacuum dust filter market that is projected to be worth almost US$ 27 million by end 2022.. Get Sample Copy of This Report @ HEPA and Micro Fresh Filters Key in Vacuum Dust Filter Market. The HEPA filters segment comprised roughly a sixth of the global vacuum dust filter market in 2017 but is poised to lose significant market share going forward. The HEPA filter segment is expected to have a value of more than US$ 4 million at the end of the forecast period. The HEPA filters ...
Wood dust is one of the oldest and one of the most common occupational exposures in the world. The present analyses examine the effect of lifetime exposure to wood dust in diverse occupational settings on lung cancer risk. We conducted two population-based case-control studies in Montreal: Study I (1979-1986) included 857 cases and two sets of controls (533 population and 1349 cancer controls), and Study II (1996-2001) comprised 736 cases and 894 population controls. Detailed job histories were obtained by interview and each job was evaluated by expert chemist-hygienists to estimate the likelihood and level of exposure to many substances, one of which was wood dust. Odds ratios (ORs) were computed in relation to different indices of exposure to wood dust, adjusting for several covariates including smoking. Three datasets were analysed: Study I with population controls, Study I with cancer controls, and Study II. The most frequently exposed occupations in our study population were in construction, timber
Dust can be corrosive to eyes, skin, and respiratory tract. Contact can cause severe chemical burns. Avoid breathing dust. Dust can contain silica. Prolonged and repeated breathing of silica dust can cause lung damage and/or cancer. Wear eye, skin and respiratory protection as necessary per working conditions. If eye contact occurs flush immediately with water for 30 minutes. Do not ingest. If ingested, call physician. If cutting board with a power tool, use a wet or vacuum saw to reduce the amount of dust generated. Panels are heavy and can fall over, causing serious injury or death. Avoid creating a tripping hazard and do not exceed floor limit loads. Dust can contain silica. Prolonged and repeated breathing of silica dust can cause lung damage and/or cancer. Product safety information: 800-507-8899 or usg. com. Customer Service: 800 USG-4-YOU (800 874-4968). KEEP OUT OF REACH OF CHILDREN ...
Cheap Vacuum Cleaners, Buy Quality Home Appliances Directly from China Suppliers:NEW JIMMY JV85 Pro Cordless Handheld Flexible Vacuum Cleaner 200AW Powerful Suction 70 Mins Run Time LED Display Dust Cleaner Enjoy ✓Free Shipping Worldwide! ✓Limited Time Sale ✓Easy Return.
Buy Robot Cleaner/Robot Vacuum Cleaner intelligent cleaner, Find Details include Size,Weight,Model and Width about Robot Cleaner/Robot Vacuum Cleaner intelligent cleaner. Make an Inquiry for Robot Cleaner/Robot Vacuum Cleaner intelligent cleaner at
Fast Shipping. Great Low Price. Prozap Insectrin Permethrin Dust contains 0.25% permethrin. Used for fly and lice control on cattle and horses; lice control on swine; and mite control on poultry. Prozap Insectrin Dust may be used to refill a Dust Bag Kit or may be directly applied to the animal. 0.25% permethrin. Contains 2 x 12.5 lb. refill cartridges.Prozap Insectrin Permethrin Dust Neogen Pour-on, Spray Dust | Cattle Fly Lice | Fly Lice Control |
Electrolux PowerForce Dust And Gone Bagged Vacuum Cleaner - (ZPF2320TP) for - Compare prices of 1875 products in Vacuum Cleaners from 89 Online Stores in Australia. Save with!
China High Pressure Vacuum Cleaner manufacturers - Select 2017 high quality High Pressure Vacuum Cleaner products in best price from certified Chinese Cleaning Machine manufacturers, China Cleaner suppliers, wholesalers and factory on
The 42-year-old attorney was caught in the dust cloud while fleeing the collapsing towers on Sept. 11, 2001. She died of sarcoidosis, a disease that causes inflammation and scarring in the lungs, on Feb. 10, 2002.. In explaining the reversal, Hirsch cited accumulated scientific research that concluded exposure to trade center dust can cause or contribute to sarcoidosis.. Mrs. Dunn-Jones exposure to World Trade Center dust on 9/11/01 contributed to her death and it has been ruled a homicide, Hirsch wrote. Mrs. Dunn-Jones has now been added to the list of people who died as a result of the collapse of the World Trade Center towers.. The city puts the Sept. 11 death toll at the trade center at 2,750. Dunn-Jones will be listed on the Sept. 11 memorial when it opens in 2009, a spokeswoman for the World Trade Center Memorial Foundation said.. A class-action lawsuit has claimed that dozens of deaths have been caused by exposure to toxic trade center dust.. A study published this month by a Fire ...
New Ranges of Automotive Tools. Best Prices on Kipor Generdr. Wet N Dry Vacuum Cleaner Hoover CT0709 Free P&. Draper 10ltr 1000W 230V Wet & Dry Vacuum Cleaner Car Valeting Hoover. Powerful 1000w Wet`N` Dry hoover. This handy sized hoover is well suited for the home / office / workshop / and also the mobile car valeter. Wet and Dry Vacuum Cleaner. The 10L tank is ideally suited for car valeting and around the home. Complete with a 3.5M approx. The cleaner is supplied with the following. Foam filter, Washable cloth filter, 1.5M flexible hose with hand grip and air control, Extension tube, Crevice nozzle, Wide angled crevice nozzle, Upholstery attachment, Mini cleaning kit, Utility nozzle, Round brush, Shoulder strap, Adaptor for mini cleaning kit 35 - 17mm dia. All accessories are 35mm diameter, except mini cleaning kit which is 17mm. Calls are answered Mon to Fri 8AM to 4PM & Sat 8AM TO 12 MIDDAY. COLLECTIONS CAN ALSO BE MADE FROM OUR STORES IN KINGSEY DURING THE ABOVE HOURS. PLEASE NOTE THE ...
For the first time, a NASA satellite has quantified in three dimensions how much dust makes the trans-Atlantic journey from the Sahara Desert the Amazon rainforest. Among this dust is phosphorus, an essential nutrient that acts like a fertilizer, which the Amazon depends on in order to flourish. The new dust transport estimates were derived from data collected by a lidar instrument on NASAs Cloud-Aerosol Lidar and Infrared Pathfinder Satellite Observation, or CALIPSO, satellite from 2007 though 2013. The data show that wind and weather pick up on average 182 million tons of dust each year and carry it past the western edge of the Sahara at longitude 15W. This volume is the equivalent of 689,290 semi trucks filled with dust. The dust then travels 1,600 miles across the Atlantic Ocean, though some drops to the surface or is flushed from the sky by rain. Near the eastern coast of South America, at longitude 35W, 132 million tons remain in the air, and 27.7 million tons - enough to fill 104,908 semi
We, TCI PRODUCT, In the business since 2003 - proudly announces itself as a decade old Manufacturer, Trader, Importer, Wholesaler and Supplier of Dry vacuum cleaner from Vadodara, Gujarat. WE are also Trusted Exporter of Dry vacuum cleaner from India.
Altic Vacuum Cleaner (Floorcare) parts - repair your Altic Vacuum Cleaner (Floorcare) with a Vacuum Cleaner (Floorcare) spare part from Currys Partmaster - Call 0344 800 3456. Worldwide and Next Day UK delivery.
Bosch Vacuum Cleaner (Floorcare) parts - repair your Bosch Vacuum Cleaner (Floorcare) with a Vacuum Cleaner (Floorcare) spare part from Currys Partmaster. Worldwide and Next Day UK delivery.
Dust mites are a common cause of allergy problems. Dust mites live up to 4 months. Each female can lay 100 eggs. Dust mites eat dead skin flakes and produce waste called fecal pellets. One mite may produce 20 fecal pellets a day. The pellets remain long after the mite is gone. Allergy problems are mainly caused by these fecal pellets. Dust mites like to live in warm, moist places (temperature 20 to 25C, humidity above 50%). Anyone with a dust mite allergy should try to avoid them. This may decrease allergy problems and the need for medicine.. ...
House dust can become airborne easily. Care is required when removing dust to avoid causing the dust to become airborne. A ... Dust in this regime has a complicated emission spectrum and includes both thermal dust emission and spinning dust emission. ... Recently, initiatives such as Project-Dust have been established to directly study dust in the Middle East. Dust kicked up by ... Contamination control Dust bunny Dust explosion Hanānā Lint (material) Medical geology Mineral dust Nephelometer Occupational ...
... (Persian: دوست محمد, also Romanized as Dūst Moḩammad; also known as Dūst Moḩammad Khān) is a town in and the ... "Statistical Center of Iran > Home". Dust Mohammad can be found at GEOnet Names Server, at this link, by opening the Advanced ...
... s on Mars Coccidioidomycosis Dry line Dust storm warning Haboob Iberulites List of dust storms Mineral dust Saharan ... Dust storms can carry large amounts of dust, with the leading edge being composed of a wall of thick dust as much as 1.6 km ( ... 12-hour U.S. map of surface dust concentrations Mouse-over an hour block on the row for 'Surface Dust Concentrations' Dust in ... The term dust storm is more likely to be used when finer particles are blown long distances, especially when the dust storm ...
... may refer to: Dustoff or casualty evacuation, the emergency evacuation of casualties from a combat zone Dust-Off, ... cleaning utensil This disambiguation page lists articles associated with the title Dust off. If an internal link led you here, ...
Dust is also seen among her fellow students in a class session in X-Men Legacy 260.1. Dust appears again as part of the ... Dust is too afraid of Belasco, believing him to be the Devil, but when X-23 is seemingly killed, Dust breaks free and attacks ... For Dust, her eyes tell the whole story, of faith and pain, of belief and bravery." In 2014, BuzzFeed ranked Dust 81st in their ... Dust happily rejoins her teammates and her revival convinces the Young X-Men not to disband. Dust is seen with Emma and Mercury ...
Official Dust-Off Website Fotospeed UK Dust Off Snopes: Adolescents huffing from cans of Dust-Off brand compressed air have ... Dust-Off is manufactured by Falcon Safety Products located in Branchburg, NJ. Dust-Off was developed and introduced in 1970 by ... Dust-Off is a brand of dust cleaner (refrigerant-based propellant cleaner, which is not compressed air and incorrectly called " ... Falcon developed Dust-Off II as a cleaning device to help rid damaging dust and lint from the new technology including screens ...
Dust (DJ Muggs album) (2003) Dust (Dust album) (1971) Dust (Laurel Halo album) (2017) Dust (Ben Monder album) (1997) Dust ( ... Dust (Screaming Trees album) (1996) Dust (Tremonti album) (2016) "Dust" (Royworld song) "Dust" (Eli Young Band song) "Dust", a ... "dust" on Wikipedia. Dustiness Dust to Dust (disambiguation) Dusted (disambiguation) Dustin (disambiguation) Dusting ( ... Pellegrino Dust, a 2001 novel by Arthur Slade Dust, a comic book series from Image Comics "Dust", a poem by Rupert Brooke Dust ...
Another thing different from Dust is that Dust II did not undergo any other major layout changes. Dust II was developed by ... Dust II is the successor to "Dust", another Counter-Strike map, and was developed by David Johnston prior to the official ... Johnston stated in a blog post that, in making Dust II, he "had to ensure that this new map had everything in common with Dust ... Johnston originally titled it "Dust 3" because he did not think it was a worthy successor to Dust; before the game's launch it ...
A dust mask is also used to prevent the wearer from inhaling dust or sand in a dust storm. A dust mask is worn in the same ... Dust masks are used in environments with dusts encountered during construction or cleaning activities, such as dusts from ... Dust masks do not protect against chemicals such as vapors and mists. For this reason, it is dangerous to confuse dust masks ... A dust mask is a flexible paper pad held over the nose and mouth by elastic or rubber straps for personal comfort against non- ...
O'Connor, Alice (18 August 2010). "Chahi's 'Project Dust' Renamed 'From Dust,' Shown off in Tech Demo Trailer". Shacknews. ... and From Dust would utilise their superior capacity to operate the simulation. From Dust was released for the Xbox 360 on 27 ... From Dust has the option of two main game modes, one being the Story mode, the other a Challenge mode. The former consists of a ... From Dust is a god video game, designed by Éric Chahi and developed by Ubisoft Montpellier. The game was released for Microsoft ...
The term is derived from "smart dust", as the sensors used as neural dust may also be defined by this concept. The design for ... The principal components of the neural dust system include the sensor nodes (neural dust), which aim to be in the 10-100 µm3 ... which would sit below the dura mater and would provide both power and a communication link to the neural dust. The neural dust ... Neural dust is a term used to refer to nanometer-sized devices operated as wirelessly powered nerve sensors; it is a type of ...
Asian dust Bull dust Coal dust Occupational dust exposure Fugitive Dust Control Self-inspection Handbook: How to Control Dust ... Large-scale fugitive dust driven by gust fronts creates a dust storm. Surfaces susceptible to fugitive dust emissions are both ... A significant volume of fugitive dust that is visible from a distance is known as a dust cloud, and a large dust cloud driven ... fugitive dust is dust that has "escaped" during any mechanical process and entered the atmosphere. Fugitive dust emissions ...
Interplanetary medium Interplanetary dust Interstellar dust Intergalactic dust Extinction (astronomy) Star formation Sparke, L ... A dust lane consists of a relatively dense, obscuring clouds of interstellar dust, observed as a dark swath against the ... These dust lanes can usually be seen in spiral galaxies, such as the Milky Way, when viewed from the edge. Due to the dense and ... This dust, as well as the gasses also found within these lanes, mix and combine to form stars and planets. ...
... is the third studio album by progressive metal band Skyharbor, released on September 7, 2018 by eOne Music & Good ... "Album Review: "Sunshine Dust" by Skyharbor". The Sound Board. Retrieved 10 September 2018. Leivers, Dannii (5 September 2018 ... After two additional singles, "Blind Side" and "Synthetic Hands", the band stated that the album, now titled Sunshine Dust, ... Metal Hammer was more charitable, commending the strengths of the new line-up and concluding, "Sunshine Dust continues ...
... (Persian: غريب دوست, also Romanized as Gharīb Dūst; also known as Qarīb Dūst) is a village in Barvanan-e Gharbi ... Gharib Dust can be found at GEOnet Names Server, at this link, by opening the Advanced Search box, entering "-3064238" in the " ...
At the premiere, Dust received rave reviews. Dance critic Jann Parry wrote that Dust was a "resounding success for Khan as ... Dust is a one-act contemporary ballet about World War I, choreographed by Akram Khan, music by Jocelyn Pook and created for the ... In 2014, Dust, along with two other commissioned works for Lest We Forget premiered at Barbican Centre, which was not built for ... Akram Khan's Dust was commissioned for the English National Ballet's mixed bill, Lest We Forget, which is about the first world ...
... is a 2005 American documentary film starring Ramsey Clark, Juan Gonzalez, Rosalie Bertell, Helen Caldicott, Michio ... The film is a documentary about U.S. soldiers returning from Iraq who had been exposed to radioactive dust from dirty bombs ... Archived 2008-05-02 at the Wayback Machine Poison Dust at ...
... (Indo G album), 1998 Angel Dust (Z-Ro album), 2012 "Angel Dust", a song by Tim Scott "Angel Dust", a song by Gil ... "Angel Dust", a song by Mac Miller from the 2014 mixtape Faces "Angel Dust", a song by Azahriah released in 2021 Dust of Angels ... Angel dusting, a misleading marketing practice Angel Dust (comics), a fictional mutant Angel Dust, a manga by Kouta Hirano ... Look up angel dust in Wiktionary, the free dictionary. Angel dust may refer to: A common name for the drug phencyclidine (PCP) ...
... describes disorders caused by excessive exposure to dust storms, particularly during the Dust Bowl in the United ... Symptoms of dust pneumonia include high fever, chest pain, difficulty in breathing, and coughing. With dust pneumonia, dust ... Dust pneumonia was featured in the work of several musicians and artists of the day, such as Woody Guthrie's song "Dust ... In 1935, dozens of people died in Kansas from dust pneumonia. Red Cross volunteers made and distributed thousands of dust masks ...
... can be found at GEOnet Names Server, at this link, by opening the Advanced Search box, entering "-3802495" in the " ... Dust Vand (Persian: دوستوند, also Romanized as Dūst Vand and Dūstvand) is a village in Baladarband Rural District, in the ...
Big Finish Productions - Dust Breeding Dust Breeding on Tardis Data Core, an external wiki (Articles with short description, ... Dust Breeding is a Big Finish Productions audio drama based on the long-running British science fiction television series ... The name of the planet Duchamp 331 is almost certainly a reference to artist Marcel Duchamp, and Dust Breeding a reference to ... So he and Ace visit a colony of artists on the barren dust world of Duchamp 331 to find out more. He isn't expecting the return ...
... is an original graphic novel based on the Buffy the Vampire Slayer television series. The first ever Buffyverse ... each hopes to bring a champion to town to fight to death in a magical ritual called the Dust Waltz. The Waltz involves ritual ...
In the polar regions of Earth, diamond dust may persist for several days without interruption. Diamond dust is similar to fog ... serial photos of Diamond Dust Diamond dust briefly observed at Tsukuba, Japan. These are serial photos out of a movie; note ... diamond dust can often reduce the visibility, in some cases to under 600 m (2,000 ft). The depth of the diamond dust layer can ... To form diamond dust the temperature must be below the freezing point of water, 0 °C (32 °F), or the ice cannot form or would ...
... - So Let Me Now (clip HD), retrieved 2019-10-20, www 20minutes ch, 20 Minutes, 20 Min. "Silver Dust ... SILVER DUST ~". Retrieved 2019-10-19. Jura, www rfj ch, RFJ, Radio Fréquence. "Magma à la batterie pour ... "Silver Dust montera sur scène au Greenfield Festival , Canal Alpha" (in French). Retrieved 2019-10-19. "SILVER DUST feat. ... SILVER DUST ~". Retrieved 2020-03-01. (Pages using the EasyTimeline extension, CS1 French-language sources ...
"Devils & Dust". Retrieved 2014-09-22. Stephen Thomas Erlewine (2005-04-26). "Devils & Dust - Bruce Springsteen ... Devils and Dust received five Grammy Award nominations, three for the song "Devils & Dust"; Song of the Year and Best Rock Song ... "Devils & Dust" featured in soundchecks during The Rising Tour in 2003. The following year it was on the set list for at least ... Devils & Dust at Discogs (list of releases) (CS1 maint: url-status, CS1 German-language sources (de), CS1 Spanish-language ...
... (ダスト8, dasutoeito) is a Japanese manga by Osamu Tezuka. The original title was "Dust 18". The story was serialized in ... p. 5. Dust 8 in the Tezuka World database Dust 18 (manga) at Anime News Network's encyclopedia (CS1 Japanese-language sources ( ... "Dust 8" ("Dust 18" was revised and retitled for the book), which was altered for inclusion in Kodansha's complete works. I ... Dust No. 1) An office worker that is one of the survivors. Just as he arrives at the airport after being rescued, he loses his ...
Beck had the Dust Brothers produce his album Odelay, released in 1996. The album spawned the hits "Where It's At" (#64 on the ... The Dust Brothers also co-produced three songs on the Rolling Stones album, Bridges to Babylon. The next year, the duo were ... The Dust Brothers are a pair of songwriters and producers consisting of E.Z. Mike (Michael Simpson) and King Gizmo (John King ... The Dust Brothers name and trademark was used by the British duo that eventually became the Chemical Brothers as they began ...
... at IMDb To Dust at Rotten Tomatoes To Dust at AllMovie (Articles with short description, Short description is different ... "To Dust". Metacritic. Retrieved 12 July 2019. Roeper, Richard (14 February 2019). "'To Dust': A cantor and a professor walk ... "To Dust (2018)". Walloh.Movies. Retrieved 5 July 2019. D'Arcy, David (25 April 2018). "'To Dust': Tribeca Review". Screen Daily ... "To Dust (2018)". Rotten Tomatoes. Fandango. Retrieved 10 October 2021. Nordine, Michael (26 April 2018). "'To Dust' and 'United ...
"Left In The Dust". Xbox Nation (18): 49. September 2004. Van Autrijve, Rainier (December 14, 2004). "Phantom Dust Coming To ... leaving the empty Dust-filled planet. Edgar found he was able to control the dust to a point where he could create self-aware ... had created a dust-clone of himself to continue to recreate humanity from the dust. The clone was flawed with overly ... while Yukio Futatsugi stated Phantom Dust as his favorite directed video game of all time. At E3 2014, a Phantom Dust remake ...
Cinema and Society in Britain 1939-48 2003 p211 Silent Dust at IMDb Silent Dust at the British Film Institute Silent Dust at ... Silent Dust is a 1949 British drama/thriller film directed by Lance Comfort and starring Sally Gray, Stephen Murray, Derek Farr ... The title comes from lines in Thomas Gray's Elegy Written in a Country Churchyard Can Honour's voice provoke the silent dust, ... Retrieved 12-10-2010 Silent Dust T.M.P. New York Times, 30-12-1949. Retrieved 12-10-2010 Robert Murphy, Realism and Tinsel: ...
flea dust. Title (Click to Sort) Fact Sheet Number. Tags Fleas HYG-2081 fleas, controlling fleas, flea infestation, flea ... shampoo, flea dip, flea bombs, flea spray, flea dust, flea powder, flea collar, flea medicine, flea pesticides, flea ...
This is a magnified photograph of a dust mite. Mites are carriers (vectors) of many important diseases including typhus (scrub ... This is a magnified photograph of a dust mite. Mites are carriers (vectors) of many important diseases including typhus (scrub ...
Report on the first Africa/Middle East expert meeting and workshop on the health impact of airborne dust, Amman, Jordan 2-5 ... Wagner, Gregory R; World Health Organization; WHO Meeting on the Screening and Surveillance of Workers Exposed to Mineral Dust ... Wagner, Gregory R; World Health Organization; WHO Meeting on the Screening and Surveillance of Workers Exposed to Mineral Dust ... Wagner, Gregory R; World Health Organization; WHO Meeting on the Screening and Surveillance of Workers Exposed to Mineral Dust ...
... - Jan 21, 2002 - Environmental Devices Corp. ... Haz-Dust III Real-Time Personal Dust Monitor Model HD-1003 The HD-1003 Real-Time Personal Dust Monitor is a completely portable ... OSHA- and EPA-compliant Model HD-1003 Real-Time Personal Dust Monitor, with lapel-mounted optical sensor, provides true ... The product is designed for aerosol and dust monitoring for Industrial Hygiene and Environmental air investigations. HD-1003 is ...
The dust seems to be concentrated between 93 miles and 310 miles above the planet, and theres more dust on Mars dayside-the ... has picked up small whiffs of plasma that form when dust hits the spacecraft and vaporizes. Dust particles have been picked up ... The dust might even be coming up from the Martian surface somehow. But overall, the researchers arent totally sure. "Its hard ... Unexplained Aurora And Dust Clouds Spotted Above Mars. The red planet is literally shrouded in mystery ...
Buy Dust Child by Nguyen Phan Que Mai from Waterstones today! Click and Collect from your local Waterstones or get FREE UK ... Dust Child (Hardback). Nguyen Phan Que Mai (author) Sign in to write a review ... In Dust Child, rupture leads to emotional richness and pain creates the pathways worth walking. I truly cannot wait for the ... Dust Child is simply stunning. -- Eric Nguyen, author of Things We Lost to the Water A heartbreaking, beautifully told, ...
Selina Gold Dust Policies & Conditions:. Cancellation policy: 48h before arrival. In case of a late cancellation or No Show, ...
Lunar Dust Transport Still a Mystery. [/caption]. There are times when Moon appears to have a tenuous atmosphere of moving dust ... The proposed dust charging mechanism is the old and well tested photoelectric emission that occurs from all materials when the ... But of course, it only exists over a sharp boundary, and that sharp boundary may be the key to understanding how you get dust ... "For the first set of experiments, imagine just a piece of surface with dust particles on it, and we shine light on this surface ...
Tags: Elephant Dust bath Pets and captive animals Wildlife and nature Voters: , TimothyDMorton, Chinga, Tish1 and 11 more ×. ...
IBM is extending the use of its "pixie dust" technology--which ups the capacity of hard drives--to a new line of drives to be ... IBM adds "pixie dust" to new drives. In the race toward ever-higher disk capacities, Big Blue is announcing Wednesday several ... Technically called antiferromagnetically coupled (AFC) media, the hard drive technology is informally referred to as pixie dust ...
Sydney Dust Storm Video Map. New Australia contributor to Google Maps Mania Arek Drozda has put together a compilation of ... The dust storm was the biggest to have hit the area in living history.. Inspired by Areks compilation I decided to put ... YouTube videos of the dust storm that hit Sydney this morning. ...
Report on the first Africa/Middle East expert meeting and workshop on the health impact of airborne dust, Amman, Jordan 2-5 ... Wagner, Gregory R; World Health Organization; WHO Meeting on the Screening and Surveillance of Workers Exposed to Mineral Dust ... Wagner, Gregory R; World Health Organization; WHO Meeting on the Screening and Surveillance of Workers Exposed to Mineral Dust ... Wagner, Gregory R; World Health Organization; WHO Meeting on the Screening and Surveillance of Workers Exposed to Mineral Dust ...
Dust Paintings, is ravishing. But the sensuality of these text-based abstractions, done in oil on linen in mostly muted colors ... Memory and Regret: Jenny Holzers "Dust Paintings" by Thomas Micchelli September 20, 2014. September 23, 2014. ... Is an exhibition ever too beautiful for its own good? Jenny Holzers new show at Cheim & Read, Dust Paintings, is ravishing. ... Is an exhibition ever too beautiful for its own good? Possibly, yes - but Holzers Dust Paintings (which refers to the literal ...
From the dust: The rise of Pa Salieu. Aniefiok Neef Ekpoudom meets Pa Salieu, the Coventry MC on the frontline of UK rap ... "Something is calling me back home boy", he says, "I aint coming from the dirt, Im coming from the dust." ... and mango and apple trees grew from the dust. Elsewhere, the family had a mosque built in the front room where the local ...
Posts Tagged DUST. Video Premiere: DUST. We debut a new track and film for the acid house-meets-Italo act as well as ... ACID HOUSE, DUST, HOUSE, INTERVIEW, ITALO DISCO, JOHN BARCLAY, MUSIC VIDEO, Q&A, VIDEO, VIDEO PREMIER ...
... even as the dust settles. Here is a to-do list hospital leadership teams should consider. ... The Imperatives for Hospitals While the Repeal Dust Settles. Paul Keckley outlines specific steps for the field until Congress ... even as the dust settles. While its sensible to proceed deliberately with major capital projects and operational endeavors for ...
Dust Clears Lyrics: Imagine if the life that you thought you shared Wasnt really there It was made up in your mind, Could be ... Clean Bandit - Dust Clears Lyrics. Other Clean Bandit Lyrics Diplo - Biggie Bounce Lyrics Zara Larsson - I Need Love Lyrics ... As the dust clears and it all starts to disappear,. It may get harder cause you just restarted. And wherever you are, land on ... As the dust clears and it all starts to disappear,. It may get harder cause you just restarted. And wherever you are, land on ...
For instance, children with a median dust loading on their hands (i.e., 1.5 mg dust per hand) who have a hand-to-mouth rate of ... At the upper end of the soil ingestion range, children with the maximum dust loading on their hands (i.e., 58.2 mg dust per ... Thus, she reports her results as ingestion of "soil/dust," rather than ingestion of strictly household dust. ... 3.1 Incidental Influences on Total Soil Dust Ingestion: Dr. Natalie Freeman. Historical Document. This Web site is provided by ...
Bowling League Results for Gold Dust Summer 22 at Gold Country Lanes ... Gold Dust Summer 22 Bowls On: Thursdays Start Date: 05/19/2022 Start Time: 6:30 PM Last Updated: 5/24/2022 ...
Dust Storm over Southern Afghanistan. Acquired July 12, 2010, this natural-color image shows a dust plume over the borders ... Sahara Dust Storm. Acquired April 22, 2010, this natural-color image shows a dust plume spanning hundreds of kilometers in ... The clouds could be associated with the same weather system that kicked up the dust. Smoke probably also mixes with the dust ... This image shows multiple sources for the dust in both Iran and Afghanistan. As sand covers much of Turkmenistan, however, dust ...
Request for Assistance in Preventing Organic Dust Toxic Syndrome ... One of the most common illnesses is organic dust toxic syndrome ... NIOSH Alert: Request for Assistance in Preventing Organic Dust Toxic Syndrome MMWR 43(26);486 Publication date: 07/08/1994. ... The alert provides recommendations for minimizing the risk for exposure to organic dusts and for the use of respirators.. ... An estimated 30%-40% of workers exposed to such organic dusts will develop ODTS. The alert describes four incidents in which 29 ...
Excuse our Dust!. We are currently updating our website and performing some much needed maintenance. We apologize for any ...
Donaldson Torit manufacturers a wide selection of advanced and reliable dust collectors and filters to increase manufacturing ... Donaldson Torit understands dust collection and containment and shares how a dust collector can be a safety barrier between a ... Donaldson Torit dust collectors and filters are used in woodworking processes where dust emissions need to be controlled. ... Six Things to Consider When Purchasing a Dust Collector. Do you have plans to purchase or upgrade a dust collector for your ...
This entry was posted in Science News and tagged dust, Titan on 2020-03-23. by Linda Chappell. Newly Discovered Dust Rings (and ... Tag Archives: dust. The Effects of Mineral Dust on Planet Habitability Assessing the habitability of planets beyond our own ... This entry was posted in Meeting Announcements and tagged dust, Mars on 2016-12-08. by Planetary News contributor. DUST, ... Dust Devils on Titan Dust devils probably occur on Saturns moon Titan, according to a new study led by Brian Jackson of Boise ...
I meant to be talking of dust, the way it lingers here, ... Theres dust on the tree trunks, dust. caught in the stitches ...
This article appeared in the Business section of the print edition under the headline "Another one bites the dust" ...
FINAL SALE FEATURES UPF 50+ Built-in shelf bra with removable foam cups. Adjustable tank-style shoulder straps. Tummy-sculpting mesh liner Secret pockets for Illusions. M
  • The dust is made up of particles that can be blown for thousands of miles. (
  • Larger particles from Saharan dust can irritate the skin and eyes. (
  • Smaller particles from Saharan dust can be inhaled and cause respiratory disorders and cardiovascular events. (
  • Dust particles have been picked up by other space probes throughout the solar system, but never before over Mars. (
  • The dust seems to be concentrated between 93 miles and 310 miles above the planet, and there's more dust on Mars' dayside-the hemisphere illuminated by the Sun. Researchers have a number of theories about where these particles came from: They could be the byproducts of earlier comet visits or materials shed from Mars' moons, Phobos and Deimos. (
  • There are times when Moon appears to have a tenuous atmosphere of moving dust particles that are leaping up from and falling back to the Moon's surface. (
  • For the first set of experiments, imagine just a piece of surface with dust particles on it, and we shine light on this surface," he said, "so that half is illuminated, half is not, pretending that there is a terminator region, that the sun is set on one side and is still shining light on the other. (
  • The lunar surface is covered by regolith that contains microscopically small, angular, and abrasive dust particles. (
  • To make the particles, which Sailor calls "smart dust," he first creates a filter for light in the surface of a silicon wafer about the size of a quarter. (
  • When dispersed in air or water, ordinary dust particles scatter light in every direction. (
  • The particles could be applied as a "tag" to certain bomb-making materials, so that when a bomb blows up, investigators can scan a crime scene for the specific smart-dust particles. (
  • Nah, LG 's latest household gizmo won't run laps around Fido, order its own replacement parts, or replace hordes of human janitors, but the aptly-named Kompressor will do a number to those nasty dust particles that get all stirred up when facing a vacuum . (
  • The particles most likely come form synthetic fabrics and soft furnishings, which gradually break down before binding to household dust, notes Newsweek. (
  • Kim Byung-gon, a Professor at Gangneung-Wonju National University Department of Atmospheric and Environmental Sciences told VOA that while fine dust particles from China are part of the problem, it isn't the only thing causing South Korea's bad air. (
  • South Korean authorities had monitored overall dust levels and saw some improvement between 2012 and 2013, but since then and the inclusion of PM2.5 particles (ultrafine dust particles that are considered hazardous) in 2015 there has been a marked increase in pollution levels. (
  • These energetic particles erode even stable soil, causing suspension of dust particles into the air. (
  • The two in-situ instruments GIADA (Grain Impact Analyzer and Dust Accumulator) and COSIMA (Cometary Secondary Ion Mass Analyzer) captured individual dust particles from the jet and were able to determine velocities, sizes and average densities of the particles. (
  • In addition, the spectrograph Alice was able to track the increase in brightness due to the dust outburst and detected tiny ice particles in the cloud. (
  • the gas streaming into space entrains dust particles with it and thus produces the visible jets. (
  • HPAI viruses disperse in aerosols, in fomites carried by human and animal vectors, and via feathers, fecal particles, and to a great extent, dust ( 7 - 9 ). (
  • Poultry farms are known to heavily generate dust particles that spread from feed, litter, feces, and animal skin and feathers ( 9 , 10 ). (
  • In a physical sense, the word "fallout" means the radioactive particles that are in the atmosphere after a nuclear explosion, and then "fall out" of the sky, back to the ground, usually in the form of dust. (
  • Thus, we conclude that the secondary packaging functioned as a protection to the passage of airborne microorganisms' particles, by moisture or dust, reducing the amount of contamination. (
  • One of the most common illnesses is organic dust toxic syndrome (ODTS), a respiratory and systemic illness that can follow exposures to heavy concentrations of organic dusts contaminated with microorganisms. (
  • In the past, several factors have been thought to affect PAH concentrations in house dust, including tobacco smoking and frequency of vacuuming. (
  • The USGS study found that apartments adjacent to coal-tar-sealcoated parking lots contained concentrations of PAHs in house dust with that were 25 times higher than in house dust from apartments with concrete, asphalt, or asphalt-based sealcoat parking lot surfaces. (
  • The study also found that dust directly on the coal-tar-sealcoated parking lots had PAH concentrations that were 530 times higher than in dust on the parking lots without coal-tar sealcoat. (
  • Previous research by the same group of USGS scientists, published earlier in 2009, demonstrated that dust from sealcoated parking lots in cities east of the Continental Divide had concentrations of PAHs that were about 1,000 times higher than in dust from sealcoated parking lots in cities west of the Continental Divide. (
  • Dust concentrations in the air can be reduced significantly with effective respiratory protection measures . (
  • 1984), and in powder rooms with poorly-regulated control of cobalt dusts, concentrations of cobalt in air ranged from between 10 µg/m3 and 160 µg/m3 (Auchincloss et al. (
  • First, the dust loading on hands was assumed to fully replenish between mouthing events--an assumption that an observer suggested was conservative for the upper-end exposure scenario--and mouthing activity was assumed to be limited to 8 hours per day. (
  • The alert provides recommendations for minimizing the risk for exposure to organic dusts and for the use of respirators. (
  • For three consecutive days in mid-January, the South Korean government issued alerts to citizens, warning of high levels of micro-dust in the air and urging them to stay inside, or if they had to be outside, to wear masks and keep exposure to a minimum. (
  • Occupational Dust Exposure and Respiratory Protection of Migrant Interior Construction Workers in Two Chinese Cities. (
  • Construction workers are at an increased risk of work -related illness (WRI) due to prolonged exposure to and inhalation of dust . (
  • We assessed the dust exposure and factors associated with respiratory protection of migrant interior construction workers . (
  • The dust exposure in most jobs exceeds hygiene standards . (
  • Exposure to hard-metal dust takes place at all stages of the production of hard metals, but the highest levels of exposure to cobalt have been reported to occur during the weighing, grinding and finishing phases (Reber and Burckhardt 1970, McDermot 1971, NIOSH 1981, Sprince et al. (
  • Despite their effectiveness and Occupational use of pesticides may be involved with extensive use, pesticides create serious health risks arising respiratory diseases along with other disorders of the en- from the exposure of farmers ( 7 ). (
  • We investigated whether house dust-mites cause oxidative stress in patients. (
  • For example, the near-landing on the asteroid Eros,"Horanyi said, "people noticed that the bottom of the craters are filled with fine dust, and there is not enough atmosphere, and certainly the body is too small have asteroid shakes - the asteroid version of earthquakes - so the possible transport that would trap or make dust pile up in some regions and move it from others, is most likely a plasma effect. (
  • Researchers studying what appears to be a beefed-up version of our solar system have discovered that it is encased in a halo of fine dust. (
  • It too has an inner and outer belt of debris surrounded by a large halo of fine dust, and four known planets between the belts -- among the first exoplanets, or planets beyond our solar system, to be directly imaged. (
  • South Korea's initial attempt at countermeasures to end the country's current fine dust problem failed this week. (
  • Fine dust occurs when pollutants emitted from China and internal (South Korean) pollutants stay in the air," said Kim, who also noted that the exact cause of Seoul's pollution problem has yet to be fully identified. (
  • Dong Jong-in, a professor in the Department of Atmospheric and Environmental Sciences at the University of Seoul, said that while domestic factors do affect the overall particulate matter in the air, "fine dust that has flowed from the outside [the country] in the upper air stream is the key factor. (
  • As a result of continued concern by residents about the on-going increase in bad air quality days, South Korean President Moon Jae-in has announced that resolving the country's fine dust problem will be one of the policy tasks his administration will undertake. (
  • During these days, thick, fine dust blanketed most of the country. (
  • Dong added that the "fine dust affects not only the respiratory system, but also blood vessels, heart, is implicated with brain disease, and dementia… it will also harm children and pregnant women. (
  • This alert warns agricultural workers who inhale contaminated organic dust that they can develop serious respiratory illness. (
  • The product is designed for aerosol and dust monitoring for Industrial Hygiene and Environmental air investigations. (
  • We conducted virologic analysis of aerosol and dust collected on poultry farms in France during 2020-2021. (
  • Dust was recorded at Black Halo Studios Rheinfelden, Chäuer Studios Bärn & RL Studios Freiburg in 2022. (
  • When planetary systems are young and still forming, collisions between growing planetary bodies, asteroids and comets kick up dust. (
  • The impressive jets of dust that comets emit into space during their journey around the Sun are not driven solely by the sublimation of frozen water. (
  • After reading this news account , I called Tammy Miser, whose brother Shawn died in 2005 from an aluminum dust explosion, to hear her reaction. Tammy's been fighting for years to have OSHA issue a standard to address combustible dust hazards. (
  •   If he teams up with Tammy Miser to get this combustible dust rule in place, get out of their way! They'll make sure OSHA gets it done. (
  • In the Dept of Labor's most recent regulatory agenda  (May 2009), OSHA didn't promise a proposed rule on combustible dust this year or next. It indicated it would issue a pre-rulemaking notice in August , with stakeholder meetings (necessary? (
  • This makes wet scrubbers perfect for applications with light dust loadings, wet or sticky particulate, vapor and gases, and combustible dust. (
  • Our new guide, Using Wet Scrubbers for Combustible Dust Control, can help you decide if a wet scrubber is the right solution. (
  • LDN 1622 is called a dark nebula because interstellar dust is so thick it obscures light from nearby stars or other nebulas. (
  • NOT-SO-CLEAR SKIES The signal that BICEP2 researchers interpreted as gravitational waves may be due to interstellar dust. (
  • But then interstellar dust clouds stole the show. (
  • Astronomers knew that interstellar dust, sootlike grains of carbon and silicon, could produce a signal mimicking gravitational waves. (
  • IMSEAR at SEARO: Dust-mites: effect on lipid peroxidation. (
  • BACKGROUND: Dust-mites are present in our homes, feed on dead exfoliated skin and other organic material. (
  • For example, the astronauts in the Apollo command modules that stayed in orbit about the Moon were hoping to take images of the dark sky, but of course there is scattered light from the dust in interplanetary space. (
  • While astronauts from Apollo 8, 10, and 15 all reported such dust clouds, Apollo 17 in 1972 repeatedly saw and sketched what they called "bands," "streamers" or "twilight rays" for about 10 seconds before lunar sunrise or lunar sunset. (
  • Adding to the mystery, also on Apollo 17 was a dust detector placed on the surface by the astronauts, the Lunar Ejecta and Meteorite experiment, which was supposed to measure the high speed impacts of micrometeorites hitting the moon. (
  • Both of these discoveries come as a big surprise to NASA researchers, since neither space dust nor these kinds of auroras have been observed over Mars before. (
  • Cicco has filed a lawsuit in Kansas seeking declaratory relief to pre-emptively keep NASA from seizing her moon dust . (
  • Global or planet-encircling dust storms are one of the most fascinating features of the Martian atmosphere and climate. (
  • They've battled heat, dust storms and in recent weeks, fires that devoured more than 900,000 acres and killed thousands of cattle. (
  • Dust storms are back. (
  • The south-eastern Mediterranean region is affected by frequent and often severe desert dust storms (DDS) lasting several days. (
  • Among the chemicals found in the highest levels in household dust were those banned from children's pajamas in the late 1970s, largely as a result of research by University of California chemist Arlene Blum, PhD. (
  • The researchers tested household dust from 16 California homes for flame retardants used in products that included home insulation, upholstered furniture, carpeting and carpet padding, children's and baby items, and electronics. (
  • Babies and toddlers are thought to be particularly vulnerable to toxins in household dust, Dodson says, because they crawl on floors and furniture and frequently have their hands in their mouths. (
  • Though her most recent studies have primarily examined exposures to household dust, Dr. Freeman noted that 50-70% of household dust is believed to come from outdoor soils. (
  • Thus, she reports her results as ingestion of "soil/dust," rather than ingestion of strictly household dust. (
  • Dr. Freeman explained the approach used to attribute measured levels of metals in food to contributions from metals contamination in soils and household dust, and then presented preliminary results from her study. (
  • Based on her results for apples, cheese, bananas, and hot dogs, Dr. Freeman estimated that children, on average, may ingest 22 mg of household dust daily just from eating foods from the floor, with a 90th percentile ingestion rate from this activity of 93 mg. (
  • These results may be surprising to some people who may expect the plastic fibers in seafood to be higher than those in household dust," says Ted Henry, senior author of the study and professor of environmental toxicology at Heriot-Watt University. (
  • In September, NASA's MAVEN spacecraft arrived at Mars to study the planet's upper atmosphere, and since its arrival, the orbiter has picked up two unusual readings: 1) There's a giant dust cloud wafting high above the Martian surface, and 2) Mars has its own aurora. (
  • She makes a cloud of dust as she twists in her movement. (
  • In 2009, the Environment Agency investigated after a dust cloud leaked from the plant and more than 30 members of the public complained. (
  • The company arranged for villagers affected by the dust cloud to have their cars cleaned. (
  • When the Sun rose over the Imhotep region of Rosetta's comet on July 3, 2016, everything was just right: As the surface warmed and began to emit dust into space, Rosetta's trajectory led the probe right through the cloud. (
  • For hospital boards and management, the paralysis of inaction is a bigger risk than proactive pursuit of initiatives that are imperatives, even as the dust settles. (
  • Saharan dust is a type of particulate matter (PM) that originates in the Sahara Desert in Northern Africa. (
  • Where does Saharan dust come from? (
  • Saharan dust comes from the Sahara Desert in Northern Africa. (
  • Saharan dust transported to the United States usually peaks from late June through mid-August. (
  • Saharan dust can be harmful to your health. (
  • Saharan dust worsens air quality and increases the levels of particulate matter in the air. (
  • How can Saharan dust affect my health? (
  • Saharan dust can affect anyone. (
  • If you have asthma, Saharan dust can make your symptoms worse. (
  • How can I protect myself and my family from Saharan dust? (
  • The good news is there's a lot you can do to protect yourself and your family from the health effects caused by Saharan dust. (
  • Saharan dust affects air quality, so start by learning about the U.S. Air Quality Index. (
  • You can use the AQI as a tool to help you avoid Saharan dust and other particle pollution. (
  • When Saharan dust levels are high, take steps to limit the amount of air you breathe in while you're outside. (
  • Think about spending more time indoors, where Saharan dust pollution levels are usually lower. (
  • Saharan dust : mobilization, transport, deposition, papers and recommendations from a workshop held in Gothenburg, Sweden, 25-28 April 1977 / edited by Christer Morales. (
  • When it comes to addressing your dust collection challenges, Donaldson's Consultative, Comprehensive, Connected approach helps ensure you get the ideal solution for your organization. (
  • On January 29, 2007, a dust storm blew northward across Turkmenistan toward Uzbekistan. (
  • New Australia contributor to Google Maps Mania Arek Drozda has put together a compilation of YouTube videos of the dust storm that hit Sydney this morning. (
  • The dust storm was the biggest to have hit the area in living history. (
  • Relentless winds cause a major dust storm, Thursday, in Albuquerque, New Mexico, forcing police to close the interstate. (
  • The south-eastern Mediterranean experiences frequent desert dust storm events (DDS) that have been shown to be associated with adverse health effects. (
  • on 3~12 April 1994,an exceptionanlly severe sand-dust storm dominated by suspended dust swept over the Northwest China. (
  • Mixed with the dust plume are clouds, which fringe it on both the east and west. (
  • The clouds could be associated with the same weather system that kicked up the dust. (
  • In the south, where skies are fairly clear of dust and clouds, patches of pale green appear along the Turkmenistan-Afghanistan border. (
  • World Health Organization] studies have indicated that it (ultrafine dust) acts as a primary carcinogen. (
  • Dust is one of the many hazards that require sanitation efforts in a manufacturing environment. (
  • An estimated 30%-40% of workers exposed to such organic dusts will develop ODTS. (
  • How do you clear up dust mite bites? (
  • Cite this: Another Alzheimer's Drug Bites the Dust - Medscape - Jul 12, 2019. (
  • This study characterized children's exposures to soil and dust in New Jersey urban centers by sampling levels of metals contamination on kitchen floors, children's hands, food that fell on the floor, and food that children handled. (
  • Dr. Freeman's presentation focused on incidental ingestion of soil and dust that results from children's typical eating and mouthing behaviors. (
  • These estimates were calculated from measurements of the amounts of dusts typically found on children's hands and the assumptions on hand-to-mouth rates, the percentage of the hand that enters a child's mouth, the extent to which the amount of dust on the hand might be replenished between mouthing events, and the number of hours a day in which children engage in mouthing behavior. (
  • In conclusion, Dr. Freeman stressed that considerable amounts of soil and dust ingestion can occur on a daily basis as a result of children's typical behavior patterns, and not necessarily from what have traditionally been considered intentional soil-pica events. (
  • OSHA- and EPA-compliant Model HD-1003 Real-Time Personal Dust Monitor, with lapel-mounted optical sensor, provides true breathing-zone measurements and graph reporting via included software. (
  • The HD-1003 Real-Time Personal Dust Monitor is a completely portable package that allows true breathing zone measurements and comprehensive graph reporting. (
  • Our new Diamond Dust Mica is a sparkling white-silver powder. (
  • This is a simple velvet nails mac like velvet nails tutorial where you make velvet nail tutorial velest dust or velvet powder for velvet nail art to resemble velvet nail ciate. (
  • Here you can make your own velvet nail art powder and velvet nail art dust which velvet nail dust can be used like velvet nail ciate for nail art for beginners with velvet nail powder or velvet nail wraps to do at home. (
  • Actice comet: A plume of dust from 67P/Churyumov-Gerasimenko, seen by the OSIRIS wide-angle camera on ESA's Rosetta spacecraft on 3 July 2016. (
  • Source of dust: The plume from 3 July 2016 was spotted within the ice-filled depression close to the large boulder near the bottom of the frame. (
  • We know filtration - we're the industry standard in dust, fume and mist collection. (
  • Farm policy critics say the latest Farm Bill is helping turn widespread drought into another Dust Bowl. (
  • Over the past decade, farmers in the Great Southern Plains have suffered the worst drought conditions since the Dust Bowl of the 1930s. (
  • Newly Discovered Dust Rings (and Possibly Asteroids! (
  • NASA's Spitzer Space Telescope has spotted an eruption of dust around a young star, possibly the result of a smashup between large asteroids. (
  • In Dust Child, rupture leads to emotional richness and pain creates the pathways worth walking. (
  • The heart of the BFC system's design is a bag spout interface that creates a dust-tight seal and promotes material flow and total evacuation of the bag. (
  • An Apollo 17 astronaut digs in the lunar regolith to study the mechanical behavior of moon dust. (
  • For instance, children with a median dust loading on their hands (i.e., 1.5 mg dust per hand) who have a hand-to-mouth rate of 8.5 events per hour were estimated to have an incidental dust ingestion rate--from mouthing behavior alone--of 14 mg per day. (
  • It's also the behavior of lunar-and possibly also Martian-dust. (
  • Also provided is a detailed and comprehensive critique of all the significant phases relating to the hazard and control of a dust explosion. (
  • Did you know that a wet scrubber system can help lower the risk of a dust explosion? (
  • One preliminary result is that, on average (median), 2 mg of dust adheres to a slice of apple dropped on the floor, the maximum being 16 mg. (
  • Similarly, 8 mg of dust, on average (median), adheres to a slice of cheese dropped on the floor, the maximum amount being 59 mg. (
  • Dust adheres to the sheepskin immediately with just a quick wipe and it won't scratch polished surfaces. (
  • At the upper end of the soil ingestion range, children with the maximum dust loading on their hands (i.e., 58.2 mg dust per hand) who have a hand-to-mouth rate of 27.0 events per hour are estimated to have an ingestion rate of 1,800 mg per day. (
  • Dr. Freeman explained that little data are available for soil/dust replenishment on hands, for mouthing activities during 24-hour time periods, and for the consistency of these behaviors across days or weeks. (
  • On the Moon, harsh, unshielded ultraviolet rays from the Sun have enough energy to kick electrons out of the upper layers of the regolith (soil), giving the surface of each dust particle a net positive charge. (
  • Growers in California and other western U.S. locations can encounter extended droughts, high winds, soil erosion, and other circumstances that result in blowing dust. (
  • Not a unique dust mitigation strategy but rather more of a soil health conservation strategy. (
  • It also rewards farmers for planting on weakened, dust-blown soil. (
  • Australian spec-fic writer Ian McHugh's debut short story collection, Angel Dust , was one of the finalists for this year's Aurealis Awards for Best Collection - and it's available here from Ticonderoga Publications (and you should go and get a copy). (
  • My first short story collection, Angel Dust, was published by Ticonderoga Publications in late 2014. (
  • 2. What was the inspiration behind your new short story collection, Angel Dust? (
  • But the brightness also appeared to follow the lunar surface, indicating that somehow dust is coming off the surface of the Moon. (
  • In other words, electrostatic charging of the lunar surface causes the dust to levitate, precipitated - somehow - by changes in sunlight. (
  • Even thought the Moon has no atmosphere, Horanyi said other processes that are likely related to the plasma and radiation environment of the Moon, "the electro-dynamic processes of the near surface lunar environment that can have strong enough electric fields and the surface can have enough electrostatic charges that can break the dust free and somehow shuffle it or move it around the surface. (
  • A team led by Carlos I. Calle (lead scientist at NASA's Electrostatics and Surface Physics Laboratory at Kennedy Space Center), however, has used a bit of intellectual judo to figure out a way to take advantage of the dust grains' electrostatic charge to repel them. (
  • Part of the dust's tenacious clinging was due to the sharp, irregular shapes of individual dust grains, formed by millions of years of meteorite impacts that repeatedly melted rocks into glass and then broke the glassy rocks into powdered glass. (
  • Information in this guide will assist growers with control of blowing sand and dust. (
  • As a grower, you may choose to implement procedures that control dust, in order to improve visibility, reduce wind erosion and loss of topsoil, minimize damage to roads and structures, and limit health impacts due to poor air quality. (
  • Effective dust control methods conserve your topsoil, protect your downwind cropped acreage, and support compliance with air quality regulations. (
  • On its existing systems, McBride uses LEV (local exhaust ventilation) extraction systems to control dust emissions. (
  • In this white paper, Emerging from the Haze, we will explain compliance, dust hazard analysis, combustibility and worker safety. (
  • In the rare cases in which Rosetta serendipitously flew through the dust jet, images of the crucial spot on the comet's surface are missing. (
  • That is a lot of air pollution, noise, and yet more kicking up of dust. (
  • And now it turns out that not only is our house dust simply toxic, it's loaded with microplastics that drift down on our food, according to another study recently published in the journal Environmental Pollution . (
  • Our new Dry Dust Collector Buyer's Guide can help you navigate the complex specifying and purchasing process once you decide a dust collector is the right solution for your air pollution needs. (
  • Horanyi and other scientists have done lab experiments to try and replicate the lunar environment to see if a dust transport takes place. (
  • Dust devils probably occur on Saturn's moon Titan, according to a new study led by Brian Jackson of Boise State University. (
  • Fast forward to the present: After seeing how Martian dust that collected on the solar panels of Mars Pathfinder deprived it of electric power and impaired performance, Calle and his collaborators began wondering if the electric curtain could be adapted to keep solar panels on the Moon and Mars dust-free. (
  • Moon dust is seriously nasty stuff. (
  • As the purse strings loosen and the money begins to flow, engineers are beginning to realise that moon dust is one problem they can no longer sweep under the carpet. (
  • Dust is the number one concern in returning to the moon," says Apollo astronaut John Young. (
  • But moon dust is quite literally out of this world. (
  • Laura Cicco claims that the gray dust in a test tube vial she possesses is actually moon dust given to her by astronaut, Neil Armstrong, when she was ten years old. (
  • Scientific experts think Cicco is mistaken -- there's no way Armstrong gave her moon dust from his time on the moon. (
  • To our knowledge he never gave moon dust to his sons, he never gave moon dust to his first or second wife. (
  • He never gave moon dust to his crewmates. (
  • An attorney bought the memorabilia at auction, including a bag Armstrong used to collect dust on the moon. (
  • As sand covers much of Turkmenistan, however, dust could also have been picked up there, and just been hidden under the plume. (
  • Smoke probably also mixes with the dust plume in this picture, as MODIS detected a cluster of hotspots (outlined in red) in southern Turkmenistan, along with a few more along the Uzbekistan border. (
  • Acquired July 12, 2010, this natural-color image shows a dust plume over the borders between Afghanistan, Pakistan, and Iran. (
  • Acquired April 22, 2010, this natural-color image shows a dust plume spanning hundreds of kilometers in western Africa. (
  • The dust might even be coming up from the Martian surface somehow. (
  • It is imperative that practical and theoretical knowledge of the origin, development, prevention and mitigation of dust explosions is imparted to the responsible safety manager. (
  • But when other researchers took a closer look at BICEP2's dust calculations, the results were discouraging, suggesting that dust, not gravitational waves, might account for the whole signal ( SN: 6/28/14, p. 20 ). (
  • Researchers from the environmental research group Silent Spring Institute found potentially unsafe levels of several flame retardants in the dust from a large percentage of the homes they examined. (
  • In the other newly reported study, led by Silent Spring research scientist Robin E. Dodson, ScD, researchers found that dust from most of the California homes they tested in 2006 and again in 2011 had levels of at least one flame retardant chemical that exceeded federal health guidelines. (
  • According to researchers at the USGS, elevated levels of polycyclic aromatic hydrocarbons (PAHs) in house dust has been linked to coal-tar-based sealcoat, the black, shiny substance sprayed or painted on many parking lots, driveways, and playgrounds. (
  • Using its Langmuir Probe and Wave instrument, MAVEN (which stands for Mars Atmosphere and Volatile Evolution) has picked up small whiffs of plasma that form when dust hits the spacecraft and vaporizes. (
  • If different manufacturers incorporated uniquely coded smart dust, the type of dust found at the bomb scene would indicate where the bomb materials were purchased and provide a clue to the identity of the terrorists who made the bomb. (
  • Once I read the study that found 90 percent of house dust tested had toxic chemicals in it , well the daydreamy appreciation of dust has taken a dark turn. (
  • At the end of a 20-minute meal, they checked the traps - on average, they found up to 114 plastic fibers on the dust traps. (
  • Planck found areas heavily contaminated by dust (red) and regions that are relatively clean (blue). (