Washington, New York breathe easier as smoke drifts further south

North American wildfires and air quality alerts in maps and images

Canada wildfires: Smog spreads south as east coast sees relief

Smoke from Canada's wildfires has reached as far as Norway

Amazon, Target modify deliveries in areas with poor air quality

Canada wildfires: Global help arrives as Quebec fights ‘historic’ fires

International help rolls in to fight persistent Canadian wildfires

See before-and-after images of US landmarks as they get inundated with wildfire smoke

Air quality: Surreal skies grip New Yorkers - in pictures

Mask and air filter sales spike on Amazon as Northeast still lives with smoke

Delhi: The city where it is dangerous to breathe

Smoky, dangerous haze parked over U.S. East Coast for second day