Emission Inventories

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).

Greenhouse Gases

Annual Statewide Greenhouse Gas (GHG) Emission Inventory Program

Mandatory Reporting Program (GHG emissions for large emitters)

GHG Facility and Entity Emissions Data includes annual carbon dioxide, methane, and nitrous oxide emissions reported by facilities and entities subject to the GHG Mandatory Reporting Regulation

Criteria Air Pollutants

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

Emissions Data

Annual Statewide Emissions Summaries for mobile, stationary, and areawide
Facility Emissions Data for individual facility emissions by region, industrial sector, or name
Regional Emission Summaries for the state, air districts, air basins, counties, and by neighborhood
Neighborhood Emissions Data mapping with the Community Health Air Pollution Information System and Regional Emission Summaries
Trends in Emissions for historical data and future years

Mobile Source Emission Inventory

The mobile source emission inventory is CARB's resource for assessing the population, activity, and emissions from mobile sources

Emissions Estimation Methods and Resources

Emission Estimation Methods for computing emissions from stationary, mobile, areawide, and natural sources
Emission Inventory Resources including publications, databases, tools, models, and special projects
Air Pollutant Information for criteria and toxic pollutants including health effect and speciation profiles

Toxic Air Pollutants

California Toxics Inventory for industrial, areawide, mobile, and natural sources
AB 2588 Air Toxics Program for collection of air toxics emissions data from facilities

District Resources

District Resources