"Respirable" Dust
نویسندگان
چکیده
منابع مشابه
Longwall Respirable Dust Simulator
ROBERT A. HANEY Mine Safety and Health Administration, Pittsburgh Health Technology Center The effectiveness of these dust control techniques has been evaluated primarily through the use of instantaneous dust measurements. These instantaneous dust measurements give a relative indication of whether dust control and -------------------~ employee exposure improve or deteriorate. Because the instan...
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We separated the respirable dust and other size fractions from Apollo 14 bulk sample 14003,96 in a dry nitrogen environment. While our toxicology team performed in vivo and in vitro experiments with the respirable fraction, we studied the size distribution and shape, chemistry, mineralogy, spectroscopy, iron content and magnetic resonance of various size fractions. These represent the finest-gr...
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Dental technicians are exposed to various dusts in working laboratories. This study was conducted to measure level of silica in the respirable dust generated from dental fixed prosthodontics manufacturing processes using Fourier Transform Infrared Spectroscopy (FTIR), and to compare their occurrence of respiratory symptoms with that of non-dental hospital workers (control group). Respirable dus...
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The objective of this cross-sectional study was to investigate the prevalence and determinants of respiratory symptoms and lung function and their association with occupational dust exposure in Taiwanese steelworkers. The study was conducted on an integrated-steel company in Taiwan from March 1989 to February 1990. After excluding workers in the coke ovens and ex-smokers, we performed physical ...
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PURPOSE To assess the relative efficacy of three types of controls in reducing respirable silica exposure during artificial stone countertop cutting with a handheld circular saw. APPROACH A handheld worm drive circular saw equipped with a diamond segmented blade was fitted with water supply to wet the blade as is typical. The normal wetted-blade condition was compared to (i) wetted-blade plus...
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ژورنال
عنوان ژورنال: Science
سال: 1966
ISSN: 0036-8075,1095-9203
DOI: 10.1126/science.151.3716.1410