Wildfires in Ontario make Toronto air quality worst in world The Guardian
Canadian wildfires prompt air quality warnings as far south as New York City Financial Times
Wildfire Smoke Spreads Across the Northeast as Temperatures Spike The New York Times
Air Quality Health Advisory Issued for Eastern Lake Ontario, Central New York, and Western New York Regions New York State Department of Environmental Conservation (.gov)
Maps show Canadian wildfire smoke descending on US, spreading from Great Lakes to New England ABC News – Breaking News, Latest News and Videos