Contact EPA Pacific Southwest Air Program
Pacific Southwest, Region 9
Serving: Arizona, California, Hawaii, Nevada, Pacific Islands, Tribal Nations
Air Quality Analysis
Ozone (O3) Attainment Designations in Region 9 (1-hour Standard)
You will need Adobe Reader to view some of the files on this page. See EPA's PDF page to learn more about PDF, and for a link to the free Adobe Reader.
- View a larger version of this map
- View a high-resolution PDF of this map (PDF) (1 pg, 1.0M)
- View the Ozone Designation Map for the 8-hour standard
- Back to Air Quality Maps page
E-mail Fletcher Clover (clover.fletcher@epa.gov) with questions.