Hundreds of wildfires still burning in Canada are expected to undermine air quality across the Upper Midwest and Northeast into Tuesday.

The smoke floating over the border shared between America and Canada is now impacting air quality in states as far south as Texas, AirNow's data shows. The EPA has declared the air quality in states near the Canadian border as "unhealthy or "unhealthy for sensitive groups."

The smoky air is predicted to reach New York City on Monday, and it could bring unhealthy air quality for sensitive groups.