Emission Inventory Data

This page last reviewed January 26, 2017

2012 Base Year Emissions:

Smoggy Skyline
By Source Category: By Region:
On-Road Sources Statewide
Off-Road Sources District
Stationary Sources Air Basin
Areawide Sources County
Neighborhood (CHAPIS maps)

or by Facility using the Facility Search Engine


Find historical data as well as projections of anticipated future year emissions

If you want to know how these emission estimates were developed, please see our Documentation page.

Note: Emissions from natural sources such as biogenics and wildfires are not included in these reports. These data are available on request.