Ontario to Review Formaldehyde OEL

In late March, the Ontario Ministry of Labour (MOL) issued a notice that it intends to update the occupational exposure levels (OEL) for 38 substances, including formaldehyde. The MOL is using the recommended levels by the American Conference of Governmental Industrial Hygienists (ACGIH) as the basis for the OEL update, which for formaldehyde is a time-weighted average (TWA) of 0.1ppm and a short-term exposure limit (STEL) of 0.3ppm (15 minutes). This is significantly lower than the current Ontario formaldehyde OEL, which is a STEL (15 minutes) of 1.0ppm and a ceiling of 1.5ppm.

A Task Group comprised of CPA and its three Ontario members, along with the American Chemistry Council Formaldehyde Panel, will seek a meeting with the MOL in the near future to share industry’s concerns. See OEL Ontario. More Info: Donald Bisson


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