['Toxic and Hazardous Substances - OSHA']

['Butadiene', 'Toxic and Hazardous Substances - OSHA']

10/17/2025

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What is the action limit (AL) and permissible exposure limit (PEL) for 1, 3-Butadiene?

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What is the action limit (AL) and permissible exposure limit (PEL) for 1, 3-Butadiene?

RegSense Safety & Health Construction Safety General Industry Safety Agriculture Safety Toxic and Hazardous Substances - OSHA Best Results FAQ Focus Area English Butadiene Toxic and Hazardous Substances - OSHA USA

The AL for 1, 3-Butadiene is 0.5 part per million (ppm) and the PEL is 1 ppm as an eight (8)-hour time-weighted average (TWA).

['Toxic and Hazardous Substances - OSHA']

['Butadiene', 'Toxic and Hazardous Substances - OSHA']

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