AL Lath Plaster Practice Questions - Alabama Lath And Plaster Contractor Examination Exam

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What is OSHA’s permissible exposure limit (PEL) for respirable crystalline silica in construction as an 8-hour time-weighted average?

25 micrograms per cubic meter (μg/m³) 50 micrograms per cubic meter (μg/m³) 100 micrograms per cubic meter (μg/m³) 250 micrograms per cubic meter (μg/m³)

Correct Answer:

50 micrograms per cubic meter (μg/m³)

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