Persistent wildfires in Canada cause serious pollution in many parts of the United States. New York's air quality is the worst in decades.

New York, June 8 (FAP)-- affected by wildfires that continue to spread in Canada, air pollution is serious in parts of the East Coast and Midwest of the United States. On the 7th, the air quality in many parts of New York reached its worst since the 1960s, forcing the New York authorities to issue an air quality warning.