AirNow Announcements

10/15/15 : Department of State provides air quality monitoring data from U.S. embassies and consulates overseas
10/1/15: EPA has updated the National Ambient Air Quality Standards for ozone and the Air Quality Index. Learn more

09/14/15: Fourteen Montana cities join
See Details

07/28/15: Poor Air Quality Expected along the Southern Coast of New England Tomorrow (Wed. July 29)

System Maintenance Tuesday, July 14 at 8PM EDT

Now available: A look back:
Ozone in 2014 and PM in 2014.

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.