If the air quality in your area is compromised, there are several things you can do to protect yourself. Special attention should be paid to those who have compromised respiratory, lung or heart health, as well as children and older adults who are generally more vulnerable.

The air quality in Phoenix has been bad recently, but we probably can’t blame California for it. Oh wow. The air quality in Phoenix right now. 😷 #azwx #azfamily pic.twitter.com/BjCINecPDf

AirNow is a collaborative effort of federal agencies that provides air quality data across the U.S. The site also has up-to-date information about the wildfires, resources, data, and interactive maps to help users learn more about particular areas and how they might be affected. There's also a free AirNow mobile app.