Beware the air, North America... Canada wildfire smoke is making another wave into the USA

So basically, that smoke in the air isn’t like smelling a nearby campfire. The wildfires have such force behind them, projecting smoke far up into the atmosphere were sunlight hits it. Coupled with UV radiation, the particulate undergoes chemical transformations… and yeah, it becomes toxic stuff! Wind currents bring that particulate back down through the atmosphere where we can breathe it. Even your sense of smell may not fully detect it. WEAR A MASK when outdoors, until the reported warning levels subside.

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US .gov fire and smoke map

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