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Document ID (ISN)78431
CIS number 02-770
ISSN - Serial title 0003-4878 - Annals of Occupational Hygiene
Year 2001
Convention or series no.
Author(s) Zhuang Z., Hearl F.J., Odencrantz J., Chen W., Chen B.T., Chen J.Q., McCawley M.A., Gao P., Soderholm S.C.
Title Estimating historical respirable crystalline silica exposures for Chinese pottery workers and iron/copper, tin and tungsten miners
Bibliographic information Nov. 2001, Vol.45, No.8, p.631-642. Illus. 26 ref.
Abstract The development of conversion factors and estimates of historical respirable crystalline silica exposure for Chinese workers are described. Ambient total dust concentrations and crystalline silica concentrations in bulk dust were gathered from historical industrial hygiene records. Analysis of the silica content in historical bulk samples revealed no trend from 1950 up to the present. During 1988-1989, airborne dust samples were collected in 20 metal mines and nine pottery factories in China. These data were used to establish conversion factors between respirable crystalline silica concentrations and total dust concentrations. The conversion factors were estimated to be 0.0143 for iron and copper, 0.0355 for pottery factories, 0.0429 for tin mines, and 0.0861 for tungsten mines. The relative merits of using facility-specific conversion factors, industry-wide conversion factors, or a weighted average of the two are discussed.
Descriptors (primary) China; airborne dust; metal mining; pottery industry; silica
Descriptors (secondary) respirable dust; filter dust collectors; determination in air; long-term exposure; mathematical analysis; exposure evaluation
Document type D - Periodical articles
Country / State or ProvinceChina; USA
Subject(s) Dust, aerosols and related diseases
Broad subject area(s) Chemical safety
Browse category(ies) Glass, pottery and related materials
Mining and quarrying