ARB's Emission Inventory Activities

Last updated February 11, 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
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