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Did you know you can find out the air quality index for over 300 cities with just a few clicks? At the AIRNow Web site, you can search for air quality conditions by zip code or state, or you can set up instant email notifications for your area.
The service covers over 300 cities and is free to use. Each report ranks different air quality parameters along a spectrum: good, moderate, unsafe for sensitive groups, unhealthy, very unhealthy and hazardous. The parameters listed in each report are today's and tomorrow's air quality index and forecasted ozone status. It also provides current conditions, along with time observed, regarding the current air quality index and current particle and ozone levels. Data is updated hourly.
Other interesting tools the website provides are a current visibility camera, air quality map archives, and links to local and state air quality resources.
An AIRNow mobile app is also available.
The AIRNow website was developed by the U.S. EPA, NOAA, NPS, tribal, state, and local agencies.