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Variability of particle size-specific fractions of personal coal mine dust exposures

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24510‎$a‎Variability of particle size-specific fractions of personal coal mine dust exposures‎$c‎Noah S. Seixas... [et al.]
520  ‎$a‎This study estimated the ratio of the tracheo-bronchial dust fraction to the fraction collected by a respirable dust sampler for a variety of job classifications found in conventional, continous, and logwall coal mining sections. The ratios could then be applied in epidemiologic studies to existing respirable dust measurements to estimate thoracic mass concentrations for evaluation of the relative importance of the respirable and thoracic dust fractions to obstructive lung disease. Data collected include particle size distributions from four U.S. underground coal mines using eight-stage personal cascade impactors
65011‎$0‎MAPA20080585679‎$a‎Higiene industrial
65011‎$0‎MAPA20080544638‎$a‎Minería
65011‎$0‎MAPA20080540517‎$a‎Carbón
65011‎$0‎MAPA20080539566‎$a‎Polvo
65011‎$0‎MAPA20080610579‎$a‎Enfermedades pulmonares
65011‎$0‎MAPA20080588670‎$a‎Vías respiratorias
65011‎$0‎MAPA20080596569‎$a‎Evaluación higiénica
7001 ‎$0‎MAPA20080147969‎$a‎Seixas, Noah S.
7400 ‎$a‎American Industrial Hygiene Association journal
7730 ‎$t‎American Industrial Hygiene Association journal‎$d‎Akron, Ohio‎$g‎Vol. 56, nº 3, March 1995 ; p. 243-250