The Latest Breaking News on Rain to dull fire threat as warning sounded for air quality risks

Eastern states including New York, Massachusetts and Connecticut issue alerts as hundreds of wildfires burn in Canada. Plus, will Trump’s once loyal deputy become his nemesis?

Over the past six weeks, massive wildfires have spread across Canada, burning more than 3.3 million hectares of land - an area 12 times the 10-year average for this time of year

Pollution from Canadian wildfires has made New York’s air quality the worst of any city in the world

From particulate matter to the AQI, here's what you need to know to protect yourself as the smoky haze settles over much of the East Coast.

These incredible before and after pictures of 'toxic smog' circling NYC's most famous landmarks show the hazardous impact the Canadian wildfire smoke is causing on the US air quality

Wildfires in Canada continue to cause mass disruption across the US with New York City still under an orange haze for the second day running - the hazardous air quality is raising health concerns for millions

Millions of people in North America have been advised to wear masks outdoors due to poor air quality levels sparked by intense wildfires in Canada

With weather systems expected to hardly budge, the smoky blanket billowing across the U.S. and Canada from wildfires in Quebec and Nova Scotia should persist into Thursday and possibly the weekend

New Yorkers have been urged to limit their time outdoors and wear masks as wildfire smoke blankets city

As some of the US's biggest cities choked in a haze of bushfire smoke, sparking health fears and alarm, social media has also lit up.

In Illinois, air quality was classified as moderate, including in Chicago, by the state EPA. Still, residents with health conditions are advised to stay indoors.