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Air Quality Model Forecast Maps

The air quality model forecast maps are generated twice a day by Environment and Climate Change Canada.

The maps below show the dispersion of wildfire smoke, the total levels of fine particulate matter (PM2.5), ground level ozone (O3) and nitrogen dioxide (NO2) hourly emissions for the next 72 hours. These are the three pollutants used to calculate the Air Quality Health Index (AQHI). Learn more about the air quality model forecast maps.

Wildfire smoke fine particulate matter

This map shows the total fine particulate matter and how the smoke from wildfires is expected to evolve and move across North America over the next 72 hours.

Total fine particulate matter

The total fine particulate matter map shows the total of PM2.5 emissions from wildfire smoke and other emissions sources. During wildfires, smoke is the dominant emission shown on the maps.

Ozone

The ozone map shows ground-level ozone, a major contributor to smog. The map shows how ozone can be transported long distances from its source.

Nitrogen dioxide

The nitrogen dioxide map shows the amount of NO2 emissions in the air. Nitrogen dioxide levels are often elevated near high traffic roads and other local sources.

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