AnatomyOrganismsDiseasesChemicals and DrugsAnalytical, Diagnostic and Therapeutic Techniques and EquipmentPhenomena and ProcessesDisciplines and OccupationsTechnology, Industry, AgricultureHealth Care
DustCosmic DustAir Pollutants, OccupationalPyroglyphidaeMitesOccupational ExposureQuartzPneumoconiosisWoodInhalation ExposureByssinosisSilicon DioxideEnvironmental MonitoringAir Pollution, IndoorConstruction MaterialsAllergensFloors and FloorcoveringsTextile IndustryMiningCoalDermatophagoides pteronyssinusArthropod ProteinsAir MicrobiologyHousingSilicosisAgricultural Workers' DiseasesDermatophagoides farinaeFlourEnvironmental ExposureIndustryInterior Design and FurnishingsGossypiumThreshold Limit ValuesMaximum Allowable ConcentrationEndotoxinsRespiration DisordersVentilationTextilesParticle SizeRespiratory Tract DiseasesHousekeepingAir PollutantsMeteoroidsAsbestosMetallurgyAsthmaAsbestos, SerpentineRespiratory Protective DevicesHypersensitivity
AfricaStormsMineral dust2021Atlantic OceanDepositionPicadorRadiativeParticlesEritreaSoilAerosolParticleSand-ladenCloudClimateMediterraneanExperimentMODIS1986Sources of dustStormTransportPlumeEcosystemsRadiationAtmosphereEmissionSourceSurfaceAfricanImpactWindPrecipitationStudiesDesertDiameterSpineRegionStudyRegionsLayerDevelopmentService
Africa6
  • AUSTIN (KXAN) - Meteorologist David Yeomans explains how dust from Africa ends up in Central Texas in this First Warning Weather University lesson. (kxan.com)
  • JACKSON, Miss. (WJTV) - The Saharan Air Layer has carried dust from Africa all the way across the Atlantic Ocean into Mississippi. (wjtv.com)
  • Bangalath and Stenchikov ( 2015 ) showed that due to high dust loading, the tropical rain belt across the ME and north Africa strengthens and shifts northward, causing up to a 20 % increase in summer precipitation over the semi-arid strip south of the Sahara, including the Sahel. (copernicus.org)
  • The Middle East and North Africa host the largest dust source in the world, the Sahara desert in North Africa that may be responsible for up to 18 % of global dust emission (Todd et al. (copernicus.org)
  • The direct radiative impact of a dust outbreak over West Africa, for example, reduced net downward shortwave flux at the surface by 200 W.m -2 (Milton et al 2008) while numerical simulations demonstrate a strong influence of North African dust on tropic-wide precipitation (in the Sahel, approaching the amplitude of the long-term drought) as well as the mean extratropical circulations (Rodwell and Jung 2008). (ox.ac.uk)
  • In sub-Saharan Africa, the International Study of Asthma and Allergies in Childhood (ISAAC) survey [10] showed the existence of allergic rhinitis with differences in prevalence between countries ranging from 7.5% in Ethiopia to 49% in Ivory Coast. (scirp.org)
Storms3
  • Saharan dust (also yellow dust, yellow sand, yellow wind or Sahara dust storms) is an aeolian mineral dust from the Sahara desert, the largest hot desert in the world. (wikipedia.org)
  • Saharan dust is often produced by natural process such as wind storms and doesn't appear to be heavily impacted by human activities. (wikipedia.org)
  • Human impacts of Saharan dust can include respiratory difficulties and other adverse health conditions during dust storms in the surrounding regions. (wikipedia.org)
Mineral dust4
  • 2016 ) , the impact of mineral dust deposition (hereafter referred to as dust) on snowpack stability is still poorly understood. (copernicus.org)
  • Vandenbussche, S. (2021) Mineral dust and its observation from the space. (cost-indust.eu)
  • Cloud icing by mineral dust and impacts to aviation safety. (cost-indust.eu)
  • North African mineral dust sources: new insights from a combined analysis based on 3D dust aerosol distributions, surface winds and ancillary soil parameters, Atmos. (cost-indust.eu)
20211
  • Georgieva E., Hristova E., Veleva B. (2021) Precipitation Chemistry in Bulgaria during Saharan Dust Outbreaks. (cost-indust.eu)
Atlantic Ocean1
  • An expansive plume of dust from the Sahara is traveling westward across the Atlantic Ocean and is expected to reach the Caribbean and parts of the United States later this week. (wjtv.com)
Deposition7
  • Can Saharan dust deposition impact snowpack stability in the French Alps? (copernicus.org)
  • While dust deposition affects the absorption of solar energy altering snowpack temperatures and melt rates, to date, there is no clear scientific evidence that dust deposition can significantly modify snow stability. (copernicus.org)
  • Here we investigate, using an ensemble snow cover model, the impact of dust deposition on snow properties and mechanical stability by comparing simulations with and without dust deposition for synthetic and observed dust deposition events. (copernicus.org)
  • We study several situations with and without dust deposition and demonstrate how sensitive the impact of dust deposition is to the deposited dust mass, the slope aspect, the elevation and the meteorological conditions following the dust deposition. (copernicus.org)
  • Regarding wet-snow instability, we show that dust deposition can advance the onset of wet-snow avalanche activity by up to 1 month in spring, as hypothesized in previous studies. (copernicus.org)
  • Thus, the impact of Saharan dust deposition on snowpack stability can be either neutral, positive or negative, depending on the topographical, snow and meteorological conditions. (copernicus.org)
  • Saharan dust : mobilization, transport, deposition, papers and recommendations from a workshop held in Gothenburg, Sweden, 25-28 April 1977 / edited by Christer Morales. (who.int)
Picador1
Radiative1
  • Numerical models, the only tools we have to predict future weather and climate, need to include dust in order to avoid large radiative and associated dynamical errors. (ox.ac.uk)
Particles12
  • Saharan dust particles from a 2005 dust storm event were analyzed, and their diameter ranged from 100 nanometers (1nanometer= 1 x 10−9 meters) to 50 micrometers (1micrometer= 1 x10−6 meters). (wikipedia.org)
  • The size of Saharan dust particles is largely determined by the distance from their source. (wikipedia.org)
  • In samples of Saharan dust from 2005, the average composition of the dust particles was: 64% silicates, 14% sulfates, 6% quartz, 5% high calcium particles, 1% iron rich (hematite), 1% soot, and 9% other carbon rich particles (carbonaceous material). (wikipedia.org)
  • These samples found 17 different elements in the dust particles, which included (but were not limited to) sodium (Na), manganese (Mn), aluminum (Al), silicon (Si), iron (Fe), cobalt (Co), copper (Cu), potassium (K), and calcium (Ca). The dust supplied from the Sahara to the subtropical North Atlantic contains a large amount of iron compared with other sources of dust to the ocean. (wikipedia.org)
  • Microorganisms living on particles can be transported away from their original habitat when dust is picked up and blown away. (wikipedia.org)
  • One example is Mont Blanc in the Alps, bordering France, Italy, and Switzerland, where snow-colonizing bacteria was found on dust particles. (wikipedia.org)
  • Tiny individual dust particles combine to make a large plume so big that it can be picked up on satellite images and even be seen from the International Space Station. (wjtv.com)
  • The scattered sunlight is enhanced by water particles or pollutants, like dust, in the atmosphere. (wjtv.com)
  • When more dust is present, there are more particles in the atmosphere for light to refract off of, and in return we've seen more bright shades of red, orange, yellow and pink. (wjtv.com)
  • Hazy skies on Wednesday night were a result from the first particles of dust over Central Mississippi. (wjtv.com)
  • Dust particles scatter the setting sunlight more than usual, creating a fiery look to the sky. (wjtv.com)
  • Secondly, we demonstrate that submicron dust particles' contribution was incorrectly accounted for in the calculation of optical properties. (copernicus.org)
Eritrea1
  • Eritrea is one of the three Sub Saharan African countries which achieved MDG 4. (who.int)
Soil7
  • For the Amazon basin, which is limited in phosphorus in much of the soil in the basin, Saharan dust is a main source of phosphorus. (wikipedia.org)
  • This dust has also impacted ecosystems in the southeastern United States and the Caribbean by supplying limiting nutrients, and in some cases promoting soil development on land. (wikipedia.org)
  • It might sound unlikely, but their work has shown that the Amazon rainforest depends on dust from one tiny area of the Sahara desert to restock its soil with nutrients and minerals. (theregister.com)
  • In this work, we determine the factors affecting soil erosion and its effect on dust formation around the Mineral Salts Company in Mighan playa of Arak. (ac.ir)
  • The results of this work show that addition of soil erosion increases the amount of fine-grained soil, and dust is a result of increased production. (ac.ir)
  • Also the presence of mineral salt in the area increases the production rate of dense soil, and as a result, rises the amount of dust produced in the area. (ac.ir)
  • Therefore, we need to stabilize mining soil, and prevent dust generation around the Mineral Salts Company. (ac.ir)
Aerosol3
  • Sites are categorized into dust, biomass burning, and mixed aerosol conditions. (copernicus.org)
  • ModIs Dust AeroSol (MIDAS): a global fine-resolution dust optical depth data set. (cost-indust.eu)
  • Smoke (tobacco smoke, smoke from wood-burning or kerosene stoves and fireplace), aerosol sprays, strong odours (perfumes, cologne, gasoline fumes) and dust and air pollution can trigger asthma attacks by irritating sensitive airways. (who.int)
Particle1
Sand-laden1
  • sirocco" is a hot, dust/sand-laden wind especially common in the summer. (allnumis.com)
Cloud1
  • A vast cloud of Sahara dust is blanketing the city of San Juan, Puerto Rico on June 22, 2020. (wjtv.com)
Climate3
  • Thus, given the impact of dust on climate, technology, human health, and ecosystems, an accurate description of dust effects in numerical models is essential. (copernicus.org)
  • The overall aim of this research is to collect the first dust source-area process data tailored to climate model grid-box resolution from targeted remote sensing and fieldwork in order to develop a new generation of model dust emission schemes. (ox.ac.uk)
  • Generate a novel and enduring data set at an appropriate scale for climate models which characterises surface erodibility and erosivity in dust source areas from intensive, targeted remote sensing and fieldwork. (ox.ac.uk)
Mediterranean1
  • The dust supplied to the North Atlantic and the Mediterranean brings limiting nutrients that help to boost primary production. (wikipedia.org)
Experiment1
  • Saharan dust in Brazil and Suriname during the Large-Scale Biosphere-Atmosphere Experiment in Amazonia (LBA) - Cooperative LBA regional Experiment (CLAIRE) in March 1998. (atomki.hu)
MODIS4
  • Analysis of images from NASA's MODIS satellite have revealed the Bodélé, a region of the Sahara not far from Lake Chad, as the source of more than half the material that fertilises the rainforest. (theregister.com)
  • The research team use the MODIS satellite to watch the dust, and the MISR instrument, which only covers a small area, to find out more about the quantity of dust in each parcel. (theregister.com)
  • MISR and MODIS AOD agree during high-dust seasons but MODIS tends to underestimate AOD during low-dust seasons. (copernicus.org)
  • Over dust-dominated sites, MODIS/Terra AODs indicate a negative trend over time, while MODIS/Aqua, MISR, and AERONET depict a positive trend. (copernicus.org)
19861
  • Arguably the most widely used data base on dust is from the Barbados array (Prospero and Nees, 1986) an ocean basin away from dust source regions. (ox.ac.uk)
Sources of dust1
  • The Bodélé depression was already known as one of the largest sources of dust in the world, but the scientists involved in the research say no one had any idea of the scale of the region's importance to the Amazon. (theregister.com)
Storm2
  • The massive dust storm has made for some eye-popping sunsets. (wjtv.com)
  • Terradellas, E. Numerical Simulation of Tehran Dust Storm on 2 June 2014: A Case Study of Agricultural Abandoned Lands as Emission Sources. (cost-indust.eu)
Transport1
  • In most cases marine bacteria and phytoplankton require small amounts of the micronutrient iron, which can be supplied by transport of Saharan dust. (wikipedia.org)
Plume4
  • The plume of dust will continue to take an eastward track during the day on Sunday. (wjtv.com)
  • Air quality has continued to improve since Friday as the plume of dust pushes north and then tracks eastward on Sunday. (wjtv.com)
  • The good news is that the second plume of dust is not expected to be as dense as the last. (wjtv.com)
  • Lofting dust into the thin martian atmosphere , its plume reaches about 20 kilometers above the surface. (apod.com)
Ecosystems2
  • Saharan dust provides marine ecosystems with important nutrients. (wikipedia.org)
  • Sometimes, these organisms survive, and can grow where the dust has landed, impacting local ecosystems. (wikipedia.org)
Radiation2
  • Dust from the Sahara is being blown over to France, bringing with it radiation left over from French nuclear weapons tests from the 1960s. (euronews.com)
  • For instance, reducing solar radiation reaching the Earth's surface dust decreases the output of photovoltaic systems. (copernicus.org)
Atmosphere2
  • The dust is swept into the atmosphere by the surface winds in the Sahara. (theregister.com)
  • The cumulative effect of the found inconsistencies led to the significantly higher dust content in the atmosphere in comparison with the corrected WRF-Chem version. (copernicus.org)
Emission1
  • Dr Koren explains the process: "In the early morning on an emission day the winds speed up to the critical velocity for lifting and transporting dust when they reach the Bodélé. (theregister.com)
Source4
  • The Sahara is the largest source of aeolian dust in the world, with annual production rates of about 400-700 x 106 tons/year, which is almost half of all aeolian desert inputs to the ocean. (wikipedia.org)
  • however, since so much iron is supplied to the regions, even with a low soluble percentage, Saharan dust is a large source of iron to these regions. (wikipedia.org)
  • Skilful simulation of the dust cycle depends on a wide range of Earth System components but, vitally, begins with realistic representation of source areas. (ox.ac.uk)
  • Likewise recent aircraft campaigns measuring dust such as SHADE, DABEX, DODO and GERBILS have not focused on source areas. (ox.ac.uk)
Surface5
  • Dust from the Sahara also supplies phosphorus and silica to surface waters. (wikipedia.org)
  • In most of the dust brought to the ocean's surface, the iron is not soluble, and organisms require an organic molecule called a ligand to help dissolve the iron so that organisms can use it for photosynthesis. (wikipedia.org)
  • The additional energy absorbed by the dust layer speeds up warming and may advance surface wetting to ease the formation of a melt-freeze crust. (copernicus.org)
  • Common to this region of Mars , dust devils occur as the surface is heated by the Sun, generating warm, rising air currents that begin to rotate. (apod.com)
  • Very attractive unclipped dust-jacket, ($7.95), has some quite mild edge-wear and surface rubbing. (brennersbooks.com)
African1
  • The impact of drought on sub-Saharan African economies: A preliminary examination. (preventionweb.net)
Impact1
Wind2
  • By using data from two satellites that take images of the same areas three hours apart, we can estimate the wind speed and calculate the size of the 'dust parcels' that are produced at the Bodélé. (theregister.com)
  • Tangential wind speeds of up to 110 kilometers per hour are reported for dust devils in other HiRISE images . (apod.com)
Precipitation1
  • Effect of Saharan Dust Intrusions on Precipitation Chemistry in Bulgaria. (cost-indust.eu)
Studies2
  • There have also been studies where bacteria from Saharan dust caused sickness in corals in the Caribbean. (wikipedia.org)
  • Modeling Desert Dust Exposures in Epidemiologic Short-term Health Effects Studies, Epidemiology , 31 (6), 788-795, doi: 10.1097/EDE.0000000000001255 . (cost-indust.eu)
Desert1
  • Scientists have conclusively demonstrated the extent of the link between the Sahara desert and the Amazon rainforests. (theregister.com)
Diameter1
  • Tracking across the flat, dust-covered Amazonis Planitia in 2012, the core of this whirling dust devil is about 140 meters in diameter. (apod.com)
Spine3
  • Very Good condition book in Very Good condition photographic dust wrapper with shallow nicks and rubs to the upper spine end and corners. (littlestourbooks.com)
  • Very Good condition book, in Very Good condition dust wrapper with short closed tears to the upper spine gutter and the top of the lower cover, not price clipped 3s 6d. (littlestourbooks.com)
  • Softened spine ends, lower corners slightly turned in, foxing to the closed edges and in Very Good condition, no dust wrapper. (littlestourbooks.com)
Region2
  • The Bodélé region loses most of its dust during the spring and winter months, unlike the rest of the Sahara, because of its unique geography. (theregister.com)
  • This is how the region, which is just half a per cent of the size of the Amazon, can produce as much dust as it does. (theregister.com)
Study1
Regions1
  • Saharan dust has been found to travel to the Amazon basin, Scandinavia, Japan, and other regions. (wikipedia.org)
Layer2
  • When avalanches release, a formerly buried dust layer can become apparent, possibly marking the failure plane. (copernicus.org)
  • While it may not be abnormal to see the Saharan dust make its annual journey to the United States, this is the strongest Saharan dust layer in at least 20 years. (wjtv.com)
Development1
  • Igor Shvytov, Agriculturally Induced Environmental Problems in Russia , Discussion Paper n. 17 (Halle, Germania: Institute of Agricultural Development in Central and Eastern Europe, 1998), p. 13. (indipendenzaenergetica.it)
Service1
  • Washable and reusable for multiple cleaning cycles, the tall open evenly spaced pleats provide excellent dust holding capacity for longer service cycle between cleanings. (4wheelingplus.com)