How to Protect Yourself from Smoky Wildfire Air
Briefly

Skies have been stained a sickly brown in the U.S. Northeast this week.Smoke from numerous wildfires in Canada has circulated hundreds of miles down the East Coast, as far south as South Carolina.The dense plumes triggered unhealthy air quality alerts in 18 states as of 6 P.M. Eastern Daylight Time on Wednesday.
Read at www.scientificamerican.com
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