Air Quality will be Poor at times Today especially now until the early afternoon then some improvement in Air Quality between 2 p.m. to 8 p.m. but then another Cold Front moving south from Canada Tonight will push another Large Plume of Canadian Wildfire Smoke into the Twin Cities after 10 p.

Researchers found that wildfire smoke can raise ozone to dangerous levels, posing hidden health risks even in remote areas.

The return of wildfire smoke from fires burning in Canada has sparked another air quality alert in Minnesota, which will be in effect through Tuesday. The Minnesota Pollution Control Agency has placed the northern two-thirds of the state in the red alert zone, which means "unhealthy" for all residents, through 9 a.m. Tuesday.