10/1/15: EPA has updated the National Ambient Air Quality Standards for ozone and the Air Quality Index. Learn more
10/1/15: AIRNow is experiencing technical difficulties with our FAQ and Submit a Comment pages.
09/14/15: Fourteen Montana cities join AirNow.gov
5/18/15: Six New Organizations Join the Air Quality Flag Program
5/12/15: The Air Quality Flag Program has expanded to include all organizations that want to fly AQI flags!
5/7/15: Seven New Organizations Join the Air Quality Flag Program
Air Quality Awareness Week, Monday, April 27- Friday, May 1 | Updated Website
4/29/15: Seven New Schools Join the School Flag Program!
4/27/15: It's Our Environment Blog Post: What Does Air Quality Mean for Your Exercise Routine?
4/22/15: AirNow: The Air Quality Index and You poster now available
4/7/15: White House announcement includes the Village Green Project (under Improving Air Quality Data)
3/26/15: Updated Air Quality Guide for Ozone
03/09/15: AIRNow is experiencing technical difficulties with our PM and AQI animated maps. We are sorry for the inconvenience.
2/03/15: Updated Ozone Facts webpage.
11/04/14: Updated AirNow materials in Spanish- Ozone and Your health and Guide to Air Quality for Ozone
10/15/14: Mexico City joins AirNow.