Wildfire Smoke Affects 100 Million Americans

Why it matters locally: The widespread nature of this wildfire smoke, originating from Canadian wildfires, poses a significant public health concern given its broad reach over 100 million Americans, which could include Massachusetts residents.

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Smoke from Canadian wildfires now impacts approximately 100 million Americans. This smoke has expanded its reach, affecting additional cities across the United States. Tom Costello, an NBC News correspondent, provided the latest information regarding the smoke's movement and its impact on these new U.S. locations.