Air contaminants are particles, liquids, and gases in the air that can be harmful to your health if you breathe them in, swallow them, or get them on your skin.
Oregon OSHA requires employers to set exposure limits for many air contaminants; you’ll find them in three “Z tables” in Oregon Rules for Air Contaminants (437-002-0382). Table Z-1 includes all of the air contaminants that have Oregon OSHA exposure limits. Notes for some air contaminants in Table Z-1 refer you to Table Z-2, Table Z-3, or other Oregon OSHA requirements.
There are similar tables in Oregon OSHA’s construction rules and agriculture rules.
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Permissible Exposure Limits
Division 2, Subdivision Z, 437-002-0382, Oregon Rules for Air Contaminants
Division 3, Subdivision Z, Toxic & Hazardous Substances *
Division 4, Subdivision Z, Chemical/Toxins *
Word document versions may be available * on the Rules pages
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Wood Preservatives Containing Chlorinated Phenols09/14/2000
Summary of comments and agency decisions regarding proposed changes to Silica and corrections to Air contaminants in Division 2 General Industry and Division 3 Construction Administrative Rules
Hazardous chemicals and substances