Hazardous Air From Wildfire Smoke Chokes Northeastern States

The northeastern U.S. experienced another day with some of the worst air quality recorded in the region, caused by large plumes of smoke emanating from widespread wildfires in Canada. Thursday, the Canadian province of Quebec, where the wildfires broke out, reported 136 active fires that have charred an area approximately the size of Delaware. Black carbon particles, or soot, have been moving ac

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