Canada Wildfires Envelope Millions of North Americans in Hazardous Smoke
Hundreds of wildfires burning across Canada continued to blanket North American cities, including New York, with choking smoke on Wednesday, raising serious health concerns. Millions of people were affected as air quality alerts stretched across Quebec and Ontario, and from New York and New England to South Carolina in the US. Schools cancelled sports events and municipal governments urged people to stay inside. A chart of hourly air quality readings for Kingston, Ontario, a lakeside tourist city near the Thousand Islands region, showed pollution extending beyond the maximum measurement scale....