OELs

Ontario: Occupational Exposure Limits 2012 Update

June 15, 2012

Occupational Exposure Limits (OELs) set an upper limit for the amount and length of time that a worker can be exposed to hazardous substances via inhalation. There are OELs for over 725 substances outlined in R.R.O. 1990, Regulation 833 (Control of Exposure to Biological or Chemical Agents) and Ontario Regulation 490/09 (Designated Substances) under Ontario’s Occupational Health and Safety Act.

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