NPR Article on Wildfire Smoke in the West

http://www.npr.org/sections/health-shots/2015/08/25/434609238/wildfire-smoke-becomes-the-health-threat-that-wont-go-away?utm_source=facebook.com&utm_medium=social&utm_campaign=npr&utm_term=nprnews&utm_content=20150825&fb_ref=Default&fb_source=message