Air Quality Stations

The air monitoring stations measure up to 6 common pollutants like:

The Ministry of the Environment, Conservation and Parks continually monitors air quality across Ontario. We use this information to:

inform the public about outdoor ambient air quality through the Air Quality Index (AQI) and Smog Advisory program
assess Ontario's air quality and evaluate long-term trends
identify areas where pollutant levels are exceeded
identify the origins of pollutants
develop air policy
provide quantitative measurements to reduce specific pollution sources
determine the significance of pollutants from long-range transports and their effects
provide air quality researchers with data to link environmental and human health effects to air quality

Ministry contact: Environment, Conservation and Parks

Additional information

Tags: Environment and Nat... Environment and Natural Resources

Environment and energy Environment and energy

air air

EMRB EMRB

air monitoring network air monitoring network

air quality stations air quality stations

ambient air ambient air
Geographic coverage: Ontario
Last Validated Date: January 18, 2024
Update frequency: Yearly

Date range: January 1, 2000 - December 31, 2022

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