· The aim of this study is to determine exposure levels as well as compliance status on respirable dust and respirable crystalline silica (RCS)quartz exposure among crusher operators at Malaysian quarries. The exposure level at each crushing process was compared. Monitoring was performed among 70 crusher operators at nine quarries. Eight hours longterm personal samples .
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Get Pricesilica make it suitable for many uses. Most silica in commercial use is obtained from naturally occurring sources, and is egorized by enduse or industry (IARC, 1997; NTP, 2005). The three predominant commercial silica product egories are: .
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Get Price· The aim of this study is to determine exposure levels as well as compliance status on respirable dust and respirable crystalline silica (RCS)quartz exposure among crusher operators at Malaysian quarries. The exposure level at each crushing process was compared. Monitoring was performed among 70 crusher operators at nine quarries. Eight hours longterm personal samples .
Get PriceThe mean value for crusher operators' exposure was mg m−3 for respirable dust and mg m−3 for RCSquartz. Around % of crusher operators were exposed to RCSquartz levels ...
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