AirNow Announcements

AIRNow will be undergoing maintenance Sunday, 9/14/14 from 7:00 AM to 8:00 PM EDT. We apologize for any inconvenience.

9/12/14: AIRNow is experiencing technical difficulties with our maps. We are sorry for the inconvenience.

The Maryland Department of the Environment has scheduled an air monitoring data outage from the evening of September 12 - 15, 2014. Data will return on Tuesday September 16th.

8/28/14: Updated Air Quality and Outdoor Activity Guidance for Schools Chart.

8/19/14: New and Improved Air Quality Index Brochure (PDF)

6/2/14: Congratulations to the 2014 EnviroFlash Challenge Winners.

5/30/14: Check out AirNow's new Ozone Facts page.

5/15/14: Check out AirNow’s updated Weathercaster page.

5/1/14: A Look Back: Ozone 2013

Air Quality Awareness Week is 4/28/14-5/2/14. Air Quality Awareness Week website

3/28/14: AIRNow is experiencing technical difficulties. We are sorry for the inconvenience.

3/12/14: AIRNow is experiencing technical difficulties with our maps. We are sorry for the inconvenience.


2/5/14: It’s American Heart Month. Did you know you can use the AQI to help protect your heart? Check out EPA’s new PSA on air pollution and heart health.

1/15/14: An updated Technical Assistance Document for the Reporting of Daily Air Quality is now available.

1/9/14: An updated version of the Air Quality Index (AQI) Toolkit for Teachers is now available.

1/3/14: EPA Proposes Updates to Air Standards for Newly Manufactured Woodstoves and Heaters | Press Release

Call for Speakers and Posters - 2014 National Air Quality Conference More

12/3/13: EPA Burn Wise Health and Safety Kit for State, Tribal and Local Agencies | Blog post

11/27/13: New School Flag Program Website and Materials for Girls Scouts
11/7/13: Alaska joins!

10/23/13: AirNow API replaces AirNow Gateway. The AirNow API suite of tools includes web services, data feeds, and other file products for software developers.

10/21/13: Eight New Pennsylvania Schools Join the School Flag Program