Results 241 to 250 of about 7,704 (296)

Respirable dust and gin machinery

Applied Ergonomics, 1985
The influence of processing machinery at cotton gins on the respirable dust that is emitted into the gin environment and the respirable dust that remains in ginned lint was investigated during a 3-year study. Dust levels in the air near positions occupied by human operators ranged from 94 to 1251 microg/m(3). The extractor-feeder/gin stand produced the
W S, Anthony, E P, Columbus
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“Respirable” Dust Sampling

American Industrial Hygiene Association Journal, 1970
This review presents background material and literature documentation to supplement the “Interim Guide for ‘Respirable’ Mass Sampling” prepared by the AIHA Aerosol Technology Committee. If discusses the factors affecting and parameters describing particle deposition and retention in the human respiratory tract and reviews the theoretical and ...
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Respirable Dust Characteristics of Polydisperse Aerosols

American Industrial Hygiene Association Journal, 1970
(1970). Respirable Dust Characteristics of Polydisperse Aerosols. American Industrial Hygiene Association Journal: Vol. 31, No. 5, pp. 546-547.
O R, Moss, H J, Ettinger
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Aflatoxin in respirable corn dust particles

Journal of Toxicology and Environmental Health, 1981
Samples of airborne grain dust representing a variety of grains were examined for the presence of aflatoxins. Although aflatoxins could not be detected in most of the samples, one corn sample contained 130 ppb aflatoxin B1. When the components of this sample were separated according to aerodynamic diameter and analyzed for aflatoxins, it was found that
W G, Sorenson, J P, Simpson, M J, Peach, T D, Thedell, S A, Olenchock   +4 more
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Aflatoxin in respirable airborne peanut dust

Journal of Toxicology and Environmental Health, 1984
Laboratory shelling and pilot handling operations were conducted to determine if peanut dust generated by such operations contained significant amounts of aflatoxin. Air samples were collected from points of highest dust concentration. No aflatoxin B1 was detected in dust from uncontaminated lots.
W G, Sorenson, W, Jones, J, Simpson, J I, Davidson   +3 more
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Respirable Dust Content of Subway Air

Environmental Letters, 1975
During the non-heating months of June, July and August of 1974, the total and respirable dust content at an underground station of the Newark City Subway System was determined. Higher particulate levels than obtained for ambient Newark air were observed.
R B, Trattner, A J, Perna, H S, Kimmel, R, Birch   +3 more
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Respirable Dust and Respirable Silica Exposure in Ontario Gold Mines

Journal of Occupational and Environmental Hygiene, 2013
A comprehensive survey of respirable dust and respirable silica in Ontario gold mines was conducted by the Ontario Ministry of Labor during 1978-1979. The aim was to assess the feasibility of introducing gravimetric sampling to replace the assessment method which used konimeters, a device which gave results in terms of number of particles per cubic ...
Dave K, Verma, Gyan S, Rajhans, Om P, Malik, Karen, des Tombe   +3 more
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Analysis of respirable dust

Microchemical Journal, 1992
Abstract Determination of mineralogical phases and metal content of respirable dust samples collected at different work sites was performed. Dust was collected by personal samplers with Microsorban membrane filters, and recovery of the dust from the filter was achieved by dissolving the membrane in benzene.
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Occupational Exposure to Respirable Dust, Respirable Crystalline Silica and Diesel Engine Exhaust Emissions in the London Tunnelling Environment

Annals of Occupational Hygiene, 2016
Personal 8-h shift exposure to respirable dust, diesel engine exhaust emissions (DEEE) (as respirable elemental carbon), and respirable crystalline silica of workers involved in constructing an underground metro railway tunnel was assessed. Black carbon (
Karen S Galea, Frank De Vocht, Martie Van Tongeren   +2 more
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Respirators for Protection against Cotton Dust

American Industrial Hygiene Association Journal, 1974
Byssinosis is an occupational disease that affects workers involved in processing fibers of cotton, flax, and soft hemp. It is caused by inhalation of dust particles present in work areas where these vegetable fibers are processed. The results of experiments involving the performance of single-use dust respirators worn by workers in a cotton textile ...
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