Wildfire smoke from Canada has made for bad air quality over parts of the Upper Midwest. Most of Minnesota had “unhealthy” ...

The Minnesota Pollution Control Agency has issued a statewide air quality alert through 9 a.m. Monday because of Canadian ...

A new World Meteorological Organization report warns of the exacting toll that sand and dust storms are having on global health and economies. The report pinpoints South Africa’s West Coast as a dust ...

Long-term follow-up revealed improved lung function despite persistent imaging abnormalities post-severe COVID-19.