Geographical Information System (GIS) Library
This GIS data library is a depository for CARB GIS shapefiles. Each zipped shapefile includes a metadata .xml file.
Boundaries
- California Air Basins (ZIP - 2,190K)
- California Counties (ZIP - 4,062K)
- California Districts (ZIP - 2,957K)
- California County, Air Basin, and Districts (CoAbDis) (ZIP - 4,113K)
Federal Designations
(Current as of Last Reviewed Date above. For the most complete, up-to-date shapefiles for federal ozone and pm2.5 designations,
please visit the U.S. EPA Area GIS download page)
- Federal 8hr Ozone (ZIP - 1.35M)
- Federal PM10 (ZIP - 1.79M)
- Federal PM2.5 (ZIP - 265K)
- Federal Lead (ZIP - 3.78M)
- Federal CO (ZIP - 2.21M)
- Federal SO2 (ZIP - 3.78M)
- Federal NO2 (ZIP - 2.21M)
- Federal Regional Haze Class 1 Areas (ZIP - 238K)
State Designations
(Current as of Last Reviewed Date above.)
- State Ozone (ZIP - 3.86M)
- State PM2.5 (ZIP - 3.97M)
- State PM10 (ZIP - 3.86M)
- State Carbon Monoxide (ZIP - 3.86M)
- State Nitrogen Dioxide (ZIP - 3.86M)
- State Sulfur Dioxide (ZIP - 3.86M)
- State Sulfates (ZIP - 3.86M)
- State Lead (ZIP - 3.86M)
- State Hydrogen Sulfide (ZIP - 3.91M)
- State Visibility Reducing Particles (ZIP - 3.86M)