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['Toxic and Hazardous Substances - OSHA']
['Toxic and Hazardous Substances - OSHA', 'Lead']
04/30/2026
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InstituteLeadSafety & HealthGeneral Industry SafetyToxic and Hazardous Substances - OSHAUSAEnglishAnalysisFocus AreaToxic and Hazardous Substances - OSHAIn Depth (Level 3)
Key definitions
['Toxic and Hazardous Substances - OSHA']

- Key definitions for lead (general industry) may be found in this section.
Action level: Employee exposure, without regard to the use of respirators, to an airborne concentration of lead of 30 micrograms per cubic meter of air (30 μg/m3) averaged over an eight-hour period.
Permissible exposure limit (PEL): 50 micrograms of lead per cubic meter of air, as averaged over an eight-hour period.
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toxic-and-hazardous-substances-osha
toxic-and-hazardous-substances-osha
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Key definitions
InstituteLeadSafety & HealthGeneral Industry SafetyToxic and Hazardous Substances - OSHAUSAEnglishAnalysisFocus AreaToxic and Hazardous Substances - OSHAIn Depth (Level 3)
['Toxic and Hazardous Substances - OSHA']

- Key definitions for lead (general industry) may be found in this section.
Action level: Employee exposure, without regard to the use of respirators, to an airborne concentration of lead of 30 micrograms per cubic meter of air (30 μg/m3) averaged over an eight-hour period.
Permissible exposure limit (PEL): 50 micrograms of lead per cubic meter of air, as averaged over an eight-hour period.
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