As Canadian wildfires spread smoke across the U.S. the air pollution is dangerous to health. But there are ways to protect yourself. Here's what to know.
(Image credit: Scott Olson)
Environment
Wildfire smoke is like smoking 'half a pack a day.' Here's how to protect yourself
Key Points
As Canadian wildfires spread smoke across the U.S. the air pollution is dangerous to health. But there are ways to protect yourself. Here's what to know.(Image credit: Scott Olson)