ARB's Emission Inventory Activities

Last updated December 23, 2015


An emission inventory is an estimation of the amount of pollutants discharged into the atmosphere that can be broken down by specified source categories in a certain geographical area and within a specified time span (e.g., in a calendar year). This webpage provides links to ARB's various emission inventory programs.

Greenhouse Gases

Annual Statewide Greenhouse Gas (GHG) Emission Inventory Program

Facility GHG Emissions Visualization and Analysis Tool

Mandatory Reporting Program

Criteria Air Pollutants

Particulate Matter, Carbon Monoxide, Nitrogen Oxide, Sulfur Dioxide, Lead, and Reactive Organic Gases

Emissions Data

Mobile Source Emission Inventory

Emissions Estimation Methods and Resources

Toxic Air Pollutants

District Resources