ARB's Geographical Information System (GIS) Library

This page last reviewed March 13, 2013

This GIS data library is a depository for ARB GIS shapefiles. Each zipped shapefile includes a metadata .xml file.

Boundaries

1. California Air Basins (ZIP - 2,190K)
2. California Counties (ZIP - 4,062K)
3. California Districts (ZIP - 2,957K)
4. California County, Air Basin, and Districts (CoAbDis) (ZIP - 4,113K)

Federal Designations

1. Federal 8hr Ozone 2011 (ZIP - 4.1M)
2. Federal PM10 2011 (ZIP - 4.2M)
3. Federal PM2.5 2011 (ZIP - 265K)
4. Federal Lead 2011 (ZIP - 265K)
5. Federal CO, SO2, and NO2 2011 (ZIP - 3.9M)
6. Federal Regional Haze Class 1 Areas (ZIP - 238K)

State Designations

1. State Ozone 2011 (ZIP - 3.95M)
2. State PM2.5 2011 (ZIP - 4.06M)
3. State PM10 2011 (ZIP - 3.96M)
4. State Carbon Monoxide 2011 (ZIP - 3.95M)
5. State Nitrogen Dioxide 2011 (ZIP - 3.95M)
6. State Sulfur Dioxide 2011 (ZIP - 3.95M)
7. State Sulfates 2011 (ZIP - 3.99M)
8. State Lead 2011 (ZIP - 3.95M)
9. State Hydrogen Sulfide 2011 (ZIP - 4.00M)
10. State Visibility Reducing Particles 2011 (ZIP - 3.95M)

California Air Monitoring Stations

1. 2001-2003 Air Monitoring Stations (ZIP - 24K)
2. 2002-2004 Air Monitoring Stations (ZIP - 31K)

Maps Available on this Website