Air Monitoring Sites - Interactive Map

An interactive map of air monitoring sites in California.

Please note: The map is marked "For Development Purposes Only" but still functions. Click "OK" to remove the error window.

These sites are currently operating throughout California, and are audited by the Quality Assurance Section (QAS). You can browse for sites by county, air basin, or air district. Clicking a site will give you basic information and a link for more details.