Although the majority of wildfires are occurring in western Canada, smoke from these fires has been drifting eastward, impacting air quality in areas around the Great Lakes and the U.S. Northeast, shows AirNow, the Environmental Protection Agency's interactive air quality map.

Rounds of smoke from hundreds of Canadian wildfires, as well as dust blowing off Sub-Saharan Africa, will continue to envelop portions of the United States into the summer, say AccuWeather meteorologists.

Wildfire smoke drifted from the east, bringing bad air quality to several states across the U.S., including California