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End-of-Shift Respirable Crystalline Silica Monitoring in Construction
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2020
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[PDF-54.06 KB]
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Description:Application of End-of-Shift Respirable Crystalline Silica Monitoring to Construction Projects
Martin Harper, Chang-Yu Wu,Chih-Hsiang Chien.
CPWR Small Study, 2020.
OSHA estimates that approximately two million construction workers are exposed to respirable crystalline silica (RCS) each year. Silica, especially quartz, is common in construction materials -- including concrete, cement, bricks, aggregates, granite, slate and limestone – and exposure by inhalation can cause silicosis, lung cancer, other respiratory diseases, and kidney diseases. Current tests to assess RCS exposure and the effectiveness of controls require off-site, sophisticated laboratory analysis, which often means results only return after several weeks. Such lags can lead to unacceptable conditions persisting without being recognized or addressed. A method to quickly determine exposure, even if not accurate enough for compliance purposes, can be vitally important. Because miners are also exposed to silica, the NIOSH Mining Division has developed a method for on-site, end-of-shift analysis. This project studied the value of the NIOSH procedure for construction, examining how common construction dusts may interfere with determining silica exposure.
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Pages in Document:1 unnumbered page
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