['Toxic and Hazardous Substances - OSHA']
['Air Contaminants']
06/06/2024
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Minnesota incorporates by reference the federal regulations for air contaminants; however, the state adds further requirements. Click the link(s) below to view the federal requirements.
Citations
Minnesota: Minnesota Rules, Department of Labor and Industry, Chapter 5205 Safety and Health Standards
Federal: 29 CFR 1910.1000
A summary of the additional requirements includes:
- In 1989, federal OSHA revised its permissible exposure limits (PELs) under 1910.1000, which Minnesota OSHA adopted. Although federal OSHA has since reverted to the pre-1989 PELs, Minnesota OSHA still enforces the 1989 PELs for substances that are not covered by separate standards.
- After the installation of engineering controls to maintain the exposure concentrations of toxic materials below air contaminant limits, tests are to be conducted to determine whether the control measures are effective. Plans for engineering control of dust, fumes, gas, vapor, or mist generating operations do not need to be submitted if air from any exhaust system handling materials listed in 29 CFR part 1910, subpart Z, is not recirculated.
- Recirculating air from any exhaust system handling materials listed in 29 CFR part 1910, subpart Z, requires written permission from the Department of Labor and Industry.
- Exposure monitoring for carbon monoxide must be conducted at least quarterly whenever internal combustion engine powered industrial trucks are operated indoors. The carbon monoxide levels are not to exceed the exposure limits given in 29 CFR 1910.1000.
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