The air quality index measures PM2.5, less than 2.5 microns particles, to determine the intensity of air pollution in cities.

Environment Canada has put a large portion of Ontario under a special air quality statement due to the smoke. The weather agency said smoke plumes from forest fires over northeastern Ontario and ...

Learn about the lasting impact of wildfire smoke on urban surfaces and human health. Discover how these toxic pollutants ...

Canada is investing $72 million on a novel satellite constellation that will monitor active forest fires across the country, ...

In 2023, smoke from wildfires in Canada spread along the eastern coast of the U.S. and beyond, prompting officials to issue air quality warnings in places including New York, North Carolina ...

Researchers have shown that plumes of wildfire smoke can carry contaminants hundreds of kilometers, leaving a toxic and ...

The South Coast Air Quality Management District extended its smoke advisory into Saturday, marking the fifth consecutive day of unhealthful pollution, largely due to the Eaton fire in Altadena.

Researchers have shown that plumes of wildfire smoke can carry contaminants hundreds of kilometres, leaving a toxic and lingering footprint which has the potential to be re-released into the ...

Researchers have shown that plumes of wildfire smoke can carry contaminants hundreds of kilometers, leaving a toxic and lingering footprint which has the potential to be re-released into the ...