OSHA Proposing to Adopt Stricter Silica Dust Exposure Limits and Work Practice Standards


On August 23, 2013, OSHA issued an Advance Notice of Proposed Rulemaking designed to reduce the permissible exposure limit (PEL) associated with silica dust exposure. OSHA is proposing a new PEL for respirable crystalline silica (quartz, cristobalite, and tridymite) of 50 µg/m3 in the general industry, construction, and shipyard sectors, a standard anywhere from two to five times more stringent than current PELs that date back to 1971.

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