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This is not the current AirNow website. To navigate to the current AirNow website, please go to This website is historical material reflecting the AirNow website as it existed on September 12, 2018. This website is no longer updated and links to external websites and some internal pages may not work.

AirNow Announcements

11/06/2017: Rescheduled Dates for the National Air Quality Conference Announced. The National Air Quality Conference will be held Wednesday - Friday, January 24-26, 2018, in Austin, Texas. - Registration Now Open!

Redesigned Coming Soon
Finding your air quality will be a snap on our new mobile friendly site. Simply enter your ZIP code, city, or state and a dial will display your local conditions. You will also be able to locate air quality monitors near you with our interactive map. Preview the new dial (PDF)

NEW: Current SO2 and H2S levels on Hawaii Island

A new monitoring network is reporting real-time SO2 and H2S data during the current Kilauea volcanic eruption on Hawaii Island.

Additional air quality resources for Hawaii residents and visitors

Air Quality Information for Hawaii Residents and Visitors

Hawai'i Short Term SO2 Advisory: Current sulfur dioxide (SO2) levels due to the Kilauea Volcano on the Island of Hawai'i.

Air Quality Awareness Week is April 30 - May 4, 2018.

Now Available: 2018 National Air Quality Conference Presentations.

Did you know that February is Heart Month? Heart Please join us to raise awareness of cardiovascular disease to lower risk. Learn More

Due to wildfires, is experiencing extremely high traffic. Some pages may be slow to load or there may intermittent outages. We are sorry for the inconvenience.

Now available: Particle Pollution and Your Patients’ Health: This online training provides healthcare practitioners information to help patients reduce their risk of particle pollution-related health effects. Continuing education credits available from CDC. Learn more