Ontario’s air quality among most ‘unhealthy’ in Canada right now — Here’s where it’s the worst Downtown Ottawa, Belleville and London had the worst air, according to Ontario’s Air Quality Health Index ...

A heat warning remains in effect for Sunday across much of Ontario, including the southern regions, with Environment Canada ...

Wildfire smoke blowing into Ontario has dropped air quality to poor levels, but conditions will finally improve come Sunday as a centre of high pressure moves east ...

London’s decision to expand a low-emission zone has led to lower air pollution without impacting business footfall or spending, according to a report released by the mayor’s office.

Poor air quality will continue in southern Ontario to start the weekend, all thanks to an arriving ridge that will suppress the smoke in the lower levels. Special air quality statements are in ...

As of Tuesday afternoon, 29 Ontario locales have been issued air quality warnings or special weather statements from Environment Canada due to the deteriorating conditions.

London’s air pollution measured at strangely high levels this morning, leaving many to wonder why it has risen so dramatically. Air quality levels measured at 7 in the Daily Air Quality Index ...

Toxic gas emissions in London fell by 27% following a 2023 expansion of the city's clean air zone, which imposes a levy on the most polluting vehicles, a report from the mayor's office said on Friday.

Wildfire smoke blowing into Ontario has dropped air quality to poor levels, but conditions will finally improve come Sunday as a centre of high pressure moves east ...

Wildfire smoke blowing into Ontario has dropped air quality to poor levels, but conditions will finally improve come Sunday as a centre of high pressure moves east ...