Contact EPA Pacific Southwest Air Program
Pacific Southwest, Region 9
Serving: Arizona, California, Hawaii, Nevada, Pacific Islands, Tribal Nations
Air Quality Analysis
Air Quality Trends
2008 Lead (Pb) National Standard
1978 Lead (Pb) National Standard
24-Hour Fine Particulate Matter (PM2.5)
Air Quality Trends (2008-2012)
Lead Concentrations
National Standard
Maximum rolling three month average over a three year period
- View a larger version of this map (PNG, 53K)
- View a high resolution PDF version of this map (PDF) (1 pg, 28K, About PDF)
