Air Pollution - Local Air Quality (Ontario, Canada)

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Last modified on February 12, 2015.

EZFeed Policy

Place Ontario

Applies to States or Provinces Ontario
Name Air Pollution - Local Air Quality (Ontario, Canada)
Policy Category Other Policy
Policy Type Environmental Regulations
Affected Technologies Biomass/Biogas, Coal with CCS, Natural Gas, Nuclear
Active Policy Yes
Implementing Sector State/Province

Program Administrator Ontario Ministry of the Environment and Climate Change
Primary Website

Last Review 2014-09-15

Information Source Air Quality Ontario:


The Air Pollution regulation administered by the Ministry of the Environment enforces compliance to the standards set in the Ontario law. The law is phased in, with portions taking effect in 2010, 2013, and 2020 that apply to different types of facilities. By 2020, all facilities are required to comply with the law.

The first phase of the law, which started in 2010, requires all fossil fuel power generating facilities - excluding those less than 25 MW in capacity - to comply with the regulations. Coal-fired plants are included in that definition. Other coal product manufacturing facilities are required to comply by the 2013 phase. Also included in the 2013 phase are waste treatment and disposal facilities, which includes biomass and biogas facilities.

The law sets the standards for dispersion models to assess compliance, as well as contaminant limits. Most of the standards developed under the law are based on the ministry's Ambient Air Quality Criteria (AAQCs). AAQCs are effect-based concentration levels with variable averaging times (e.g., 24 hours, 1 hour, 10 minutes). The effects considered include health, odor, vegetation, soiling, visibility and corrosion.

Policy Contact

Contact Name Anne Neary
Department Ontario Ministry of the Environment
Address 135 St. Clair Avenue West
Place Toronto, Ontario
Zip/Postal Code M4V 1P5
Phone 416-314-6310


Authorities (Please contact the if there are any file problems.)

Authority 1: Air Pollution - Local Air Quality (O. Reg. 419/05)