SME CMSP Practice Questions - Certified Mine Safety Professional Exam

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Under MSHA's 2024 respirable crystalline silica final rule (30 CFR Part 60), what is the permissible exposure limit (PEL) for respirable crystalline silica as an 8-hour TWA?

100 µg/m³ 10 µg/m³ 25 µg/m³ 50 µg/m³

Correct Answer:

50 µg/m³

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