Parts of Canada are seeing some of their most unhealthy air yet, and the smoke is likely to move over the United States again ...

Smoke from wildfires in Canada has spread more than 5,000 miles, reaching parts of Russia and Europe during the past week.

Patients of all ages often experience heightened allergy symptoms during the grass pollen season, which is worsened by summer ...

Atlantic and Great Lakes region won’t be so lucky. It should mostly be aloft here. So our air quality should be fine ...