NIOSHTIC-2 Publications Search - 00026786 - Air Sampling for Cotton Dust.
Lint is the predominant fraction in the measurement of total dust and the vertical elutriator seems effective in the collection ... Cotton dust sampling experiments performed at various cotton mills show that, to avoid significant under or over sampling, ... Air-quality-measurement; Air-contamination; Cotton-industry; Dust-samplers; Sampling-methods; Air-sampling-equipment; Dust- ... Cotton dust sampling experiments performed at various cotton mills show that, to avoid significant under or over sampling, ...https://www.cdc.gov/niosh/nioshtic-2/00026786.html
NIOSHTIC-2 Publications Search - 00045608 - Criteria for a recommended standard... occupational exposure to cotton dust.
Criteria and recommended standards for cotton dust exposure are reported, as developed by the National Institute for ... The basis for the recommended environmental standard on cotton dust is presented and work practices for protection are ... Criteria and recommended standards for cotton dust exposure are reported, as developed by the National Institute for ... Seven review committees are outlined that were established to make recommendations regarding a cotton dust standard. The ...https://www.cdc.gov/niosh/nioshtic-2/00045608.html
NIOSHTIC-2 Publications Search - 00172990 - Surface tension effects of cotton dust.
... films were measured in the presence and absence of known concentrations of the cotton dust using a Wilhelmy balance. Surface ... The effect of cotton dust on the surface tension of the surfactant dipalmitoyl-lecithin was assessed. The surface tension of ... The effects of the cotton dusts on hysteresis were modified by solvent extraction. Extraction of the dust with either water, ... The effect of cotton dust on the surface tension of the surfactant dipalmitoyl-lecithin was assessed. The surface tension of ...https://www.cdc.gov/niosh/nioshtic-2/00172990.html
NIOSHTIC-2 Publications Search - 10002034 - Three Bureau of Mines Optical Dust Probes.
Each of the probes measures dust cloud concentrations by the attenuation of light. The first is a single-path-length probe, the ... This report describes three types of optical dust probes that have been designed, built, and tested by the Bureau of Mines. ... Each of the probes measures dust cloud concentrations by the attenuation of light. The first is a single-path-length probe, the ... This report describes three types of optical dust probes that have been designed, built, and tested by the Bureau of Mines. ...https://www.cdc.gov/niosh/nioshtic-2/10002034.html
NIOSHTIC-2 Publications Search - 20023266 - Continuous miner and roof bolter dust control.
In relation to dust, there are three categories of continuous miner faces depending on the type of ventilation and whether or ... not a machine-mounted dust scrubber is used. These are 1. Mining machines with dust scrubbers used with blowing face vent ... This chapter explains how to control dust at continuous miner sections in coal mines where the main dust sources are continuous ... Dust-control; Dust-control-equipment; Underground-mining; Airborne-dusts; Ventilation; Sprays; Dust-collection; Dust-collectors ...https://www.cdc.gov/niosh/nioshtic-2/20023266.html
NIOSHTIC-2 Publications Search - 20030800 - Organic dust exposures from work in dairy barns.
Environmental analytes included airborne dusts (total, inhalable inlet, and respirable), particle size distributions, ... in central Wisconsin to characterize exposures to organic dusts and dust constituents from routine barn work. ... Microorganisms; Organic-dusts; Respirable-dust; Respiratory-system-disorders; Respiratory-irritants; Airborne-dusts; Airborne- ... There were significant correlations between the concentrations of organic dusts and certain dust constituents, although in most ...https://www.cdc.gov/niosh/nioshtic-2/20030800.html
NIOSHTIC-2 Publications Search - 20031119 - Coal dust particle size survey of U.S. mines.
The size of the coal dust is relevant to the amount of rock dust re ... conducted a joint survey to determine the range of coal particle sizes found in dust samples collected from intake airways of U ... The size of the coal dust is relevant to the amount of rock dust required to inert the coal dust, with more rock dust needed to ... Mining-industry; Coal-dust; Particulates; Particulate-dust; Dust-control; Dust-particles; Underground-mining; Coal-mining ...https://www.cdc.gov/niosh/nioshtic-2/20031119.html
NIOSHTIC-2 Publications Search - 00206043 - Mortality among dust-exposed Chinese mine and pottery workers.
... dusts. Information was gathered from 21 mines (ten tungsten, six copper and iron, and four tin), and eight pottery fact ... JOCMA7; NIOSH-Author; Dust-exposure; Mineral-dusts; Underground-mining; Mine-workers; Cancer-rates; Risk-factors; Respiratory- ... Pulmonary heart disease and noncancerous respiratory disease rates rose in proportion to dust exposure. Cancer mortality was ... dusts. Information was gathered from 21 mines (ten tungsten, six copper and iron, and four tin), and eight pottery factories. A ...https://www.cdc.gov/niosh/nioshtic-2/00206043.html
NIOSHTIC-2 Publications Search - 20022682 - Laboratory evaluation of pressure differential-based respirable dust detector tube.
A new type of respirable dust sampler was developed and compared side-by-side to personal gravimetric samplers in the ... Assessment of exposure to occupational dusts is a first step in reducing exposures to harmful dust concentrations. ... Six different coal dusts were aerosolized in a laboratory dust chamber and a total of 119 triplicate observations were obtained ... Assessment of exposure to occupational dusts is a first step in reducing exposures to harmful dust concentrations. A new type ...https://www.cdc.gov/niosh/nioshtic-2/20022682.html
NIOSHTIC-2 Publications Search - 10011159 - Automation to control silica dust during the pallett loading process.
... dust exposures in automated pallet loading processes. The first study involved a Bureau-designed dust control system using a ... The unit was shown to reduce workers' dust exposures by 76 pct during pallet loading at a ground silica operation. A hydraulic ... The unit was shown to reduce workers' dust exposures by 76 pct during pallet loading at a ground silica operation. A hydraulic ... Two recent U.S. Bureau of Mines studies evaluated workers' dust exposures in automated pallet loading processes. The first ...https://www.cdc.gov/niosh/nioshtic-2/10011159.html
NIOSHTIC-2 Publications Search - 00142503 - Does coal mine dust present a risk for lung cancer. A case-control study of U.S....
A 1 to 1 matched case analysis, matching age at death, was employed to examine the lung cancer risk of coal mine dust exposure ... The effect of coal dust exposure on lung cancer risk was investigated in coal miners. Two case/comparison studies were ... Extensive coal mine dust exposure from underground mining for 25 or more years gave an odds ratio of 0.89 for risk of lung ... Does coal mine dust present a risk for lung cancer. A case-control study of U.S. coal miners.. ...https://www.cdc.gov/niosh/nioshtic-2/00142503.html
NIOSHTIC-2 Publications Search - 20024504 - Quantification of historical dust exposures in the diatomaceous earth industry.
Quantitative estimates of dust exposure in a diatomaceous earth (DE) mining and milling operation have been derived based on ... Pulmonary-system-disorders; Silica-dusts; Occupational-exposure; Lung-cancer; Organic-dusts; Dust-exposure; Dust-particles; ... Quantitative estimates of dust exposure in a diatomaceous earth (DE) mining and milling operation have been derived based on ... The average estimated respirable dust concentrations for 135 jobs were 3.55 (+/-1.25), 1.37 (+/-0.48), 0.47 (+/-0.16) and 0.29 ...https://www.cdc.gov/niosh/nioshtic-2/20024504.html
NIOSHTIC-2 Publications Search - 00198787 - Study of Fibrogenic Effect of Vermiculite Dust on Rat Lung.
... dust. Quartz was administered as a positive control. Selected rats were killed 1, 3, 6, 9, or 12 months later and the lungs and ... In-vivo-studies; Laboratory-animals; Lung-fibrosis; Mineral-dusts; Silicates; Dust-exposure; Lung-tissue; Lymph-nodes; ... The authors conclude that vermiculite dust causes slight fibrogenic changes in rats. The changes are less severe and progress ... dust. Quartz was administered as a positive control. Selected rats were killed 1, 3, 6, 9, or 12 months later and the lungs and ...https://www.cdc.gov/niosh/nioshtic-2/00198787.html
NIOSHTIC-2 Publications Search - 00185498 - Mechanism of airflow interruption in guinea pigs exposed to cotton dust.
Male guinea-pigs were exposed to cotton dust aerosols at 35mg/m3 for a 6 hour exposure period. Most commonly the interruption ... investigate the interruption of airflow in the breathing pattern of guinea-pigs exposed to a high concentration of cotton dust ... Cotton-dust; Laboratory-animals; Pulmonary-system-disorders; Pulmonary-function; Airborne-dusts; Dust-inhalation; Lung-function ... Cotton dust: proceedings of the Twelfth Cotton Dust Research Conference, beltwide cotton research conferences, January 6-7, ...https://www.cdc.gov/niosh/nioshtic-2/00185498.html
NIOSHTIC-2 Publications Search - 00198786 - Problems of Labour Health on Preventing Dust Hazard in Township Industries.
The results indicated that occupational dust exposures in t ... Dust related occupational health problems in small rural ... Industrial-hygiene; Dust-exposure; Mineral-dusts; Occupational-exposure; Sociological-factors; Dust-suppression; Control- ... Dust related occupational health problems in small rural industries in the People's Republic of China (PRC) were discussed. ... The results indicated that occupational dust exposures in the facilities was very high and that exposed workers had a high ...https://www.cdc.gov/niosh/nioshtic-2/00198786.html
CDC - Mining Project - Certification Test - NIOSH
Caking adversely affects the dispersibility of the rock dust rendering the rock dust ineffective to inert coal dust. The use of ... Mitigating Coal Dust Explosions in Modern Underground Coal Mines * Observations of Post-Explosion Dust Samples From an ... Examine the application of anti-caking treated rock dust in coal mines and its impact (if any) on the airborne respirable dust ... 30 CFR 75.402 mandates that underground coal mines are to be rock dusted in order to prevent coal dust explosion propagations. ...https://www.cdc.gov/niosh/mining/researchprogram/projects/project_RockDust.html
NIOSHTIC-2 Publications Search - 00216519 - Organic dust exposures from compost handling: Case presentation and respiratory...
Bacterial-dusts; Author Keywords: organic dust toxic syndrome; hypersensitivity pneumonitis; wood chips; compost handling; ... The dusts contained respirable endotoxin concentrations of 636 to 16,300 endotoxin units per cubic meter (m3). Fungal spore ... HP and ODTS may represent just a portion of a wide spectrum of responses to inhalation of complex dusts. ... Organic dust exposures from compost handling: Case presentation and respiratory exposure assessment.. ...https://www.cdc.gov/niosh/nioshtic-2/00216519.html
NIOSHTIC-2 Publications Search - 00193982 - NIOSH Testimony on Cotton Dust Standards by R. A. Nelson, August, 1983.
Chronic conditions associated with cotton dust inhalation, including byssinosis, contribute to a large extent to the total ... This testimony concerned the work of NIOSH in the field of controlling worker exposure to cotton dust. ... NIOSH-Author; NIOSH-Testimony; Nelson-R-A; Dust-control; Pulmonary-system-disorders; Airborne-dusts; Plant-dusts; Cotton-dust; ... This testimony recommended that the Permissible Exposure Limit of 1.0mg/m3 for total raw cotton dust not be relied upon alone ...https://www.cdc.gov/niosh/nioshtic-2/00193982.html
NIOSHTIC-2 Publications Search - 00028628 - HHE determination report no. HHE-73-194-153, Goodyear Aerospace Corporation,...
... fiberglass reinforced plastic dust is not present in toxic concentrations, but is the cause of active cases of dermatitis. ... Recommendations include use of protective clothing to minimize skin contact with dust, fans to project dust away from breathing ... Dust-control; Author Keywords: xylol; xylene; dust; fiberglas reinforced plastic; spray paint ... fiberglass reinforced plastic dust is not present in toxic concentrations, but is the cause of active cases of dermatitis. ...https://www.cdc.gov/niosh/nioshtic-2/00028628.html
NIOSHTIC-2 Publications Search - 00234637 - NIOSH hazard controls HC8 - control of wood dust from random orbital hand sanders.
A new control system was developed which could significantly cut down on the exposure to the dust. Previously, the dust ... Wood dust generated during the use of random orbital hand sanders exposes the operator of this equipment to an increased risk ... Wood-dusts; Woodworkers; Hand-tools; Woodworking-industry; Dust-control; Airborne-dusts; Control-technology; Power-tools; ... Dust emissions are reduced by about 90% with the new dust control system. The new system does not interfere with the operation ...https://www.cdc.gov/niosh/nioshtic-2/00234637.html
NIOSHTIC-2 Publications Search - 00023035 - Arterial blood gas tensions and lung function during acute responses to hemp dust.
The decrease in arterial oxygen tension occurs in men with normal and abnormal one-second expiratory volumes before dust ... Exposure to hemp fiber dust for 15 minutes to 3 hours of 3 volunteers (former hemp workers) results in symptoms of byssinosis, ... Dust-inhalation; Organic-dusts; Textiles-industry; Airway-obstruction ... Exposure to hemp fiber dust for 15 minutes to 3 hours of 3 volunteers (former hemp workers) results in symptoms of byssinosis, ...https://www.cdc.gov/niosh/nioshtic-2/00023035.html
NIOSHTIC-2 Publications Search - 20025666 - Evaluation of the SKCs DPM cassette for monitoring diesel particulate matter in...
Coal dust contributed a minimal amount of elemental carbon when commercial cascade impactors and prototype impactors, designed ... The dust particle diameters were small and the coal dust contained a high percentage of carbon, thereby giving a worst-case ... were used to collect submicrometer dust fractions. Other impactors were not as effective at excluding coal dust. The impactors ... Coal dust contributed a minimal amount of elemental carbon when commercial cascade impactors and prototype impactors, designed ...https://www.cdc.gov/niosh/nioshtic-2/20025666.html
NIOSHTIC-2 Publications Search - 00025178 - Respiratory impairment in working coal miners.
Coal-mining; Coal-dusts; Respiratory-system-disorders; Respirable-dusts; Dust-control; Lung-disorders; Physiological-functions ... probably due to physical or chemical composition of coal dust to which the men are exposed. ...https://www.cdc.gov/niosh/nioshtic-2/00025178.html
NIOSHTIC-2 Publications Search - 20044417 - The effect of sampling time on the overall performance of portable microbial...
Particulate-dust; Particulate-sampling-methods; Particle-aerodynamics; Sampling-methods; Sampling; Exposure-assessment; ...https://www.cdc.gov/niosh/nioshtic-2/20044417.html
NIOSHTIC-2 Publications Search - 00115999 - HETA Branch Report No. TA-77-20, St. Elizabeth's Hospital, Washington, D.C.
NIOSH-Author; NIOSH-Technical-Assistance-Report; TA-77-20; Hazards-Confirmed; Region-3; Health-surveys; Asbestos-dust; Dust- ... the construction workers and certain hospital employees are exposed to excessive concentrations of asbestos containing dusts ...https://www.cdc.gov/niosh/nioshtic-2/00115999.html