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What Are Wildfires
Fine Particles from Wildfires
Health Impacts
Health Impact of Wildfire Smoke
Wildfires Are Increasing
Reasons Why Wildfires Are Increasing in North America
Effect of Climate Change on Wildfires
Transport of Air Pollutants
How To Protect Themselves from Wildfire Smoke
What To Do When Smoke Comes to Town
The Washington State Department of Health has five levels of classification for air quality
"Good" means that air pollution is so low there is little health risk
"Moderate" means people with health problems should limit time outdoors
"Unhealthy for sensitive groups" means people with health problems may have worsened symptoms
"Unhealthy for everyone" means everyone should limit time outdoors as well as strenuous activities
"Very unhealthy for everyone" means everyone should stay indoors, close windows and use air filters