The fluctuating layer of smoke in our atmosphere meant that the expected blue skies in the evening and morning have taken on ...

Toxic metals, including arsenic, could be released by Canadian wildfires, posing health risks to those downwind.

Smoke will likely be an ongoing health hazard across North America for the next few months. Here's what to expect.

Much of Ontario remains under special air quality statements or warnings today amid smoke from wildfires burning in other parts of Canada.

Smoke from Canadian wildfires is engulfing much of the eastern and central United States and and is expected to continue for ...

An official warning has been issued ahead of F1’s Canadian Grand Prix, as over 200 wildfires continue to burn across Canada ...

Almost the entire country, including Montreal, is under an Environment Canada air quality warning or special weather ...

As hundreds of wildfires burn across Canada, smoke is traveling south and potentially affecting Americans’ health. Here's why ...

Smoke from the Canadian wildfires has lead to unhealthier readings of air quality in Nebraska on Sunday.According to ...

More than 200 wildfires are raging across Canada, sending a thick blanket of choking smoke through the U.S. Midwest. Experts ...

Wildfires are burning around Canada. Here’s where wildfire smoke is across the country and how kids can protect themselves.

An overcast Monday is in store for Massachusetts residents as wildfire smoke lingers through the chilly temperatures — and ...