(million short tons)

Embedded Dataset Excel:

Dataset Excel:

Notes:

Details may not add up to totals due to rounding in the source.

The February 2025 emissions trends release updates data methodologies across several periods: it retains improved estimation procedures introduced in 2023 for 2002–2019 to ensure consistency, uses the 2020 National Emissions Inventory (NEI) alongside modeling platforms for 2020–2022, incorporates the updated 2023 NEI, carries 2023 data forward for most 2024 figures, and introduces 2025 estimates focused primarily on power plant emissions (NOx​ and SO2​) and draft wildfire data while carrying 2024 estimates forward for all other categories.

Description:

KEY: P = preliminary; R = revised.

^a Fine particulate matter less than 10 microns. Data include PM without condensable.

^b Industrial processes consists of chemical and allied product manufacturing, metals processing, petroleum and related industries, other industrial processes; solvent utilization; and storage and transport.

^c In 1985 there appears to be a spike in Miscellaneous emissions. This is likely due to a methodological change, and the EPA does not change historical data when it changes its methodology.

Source:

U.S. Environmental Protection Agency, Air Emissions Inventories, Air Pollutant Emissions Trends Data, National Tier 1 CAPS Trends, available at https://www.epa.gov/air-emissions-inventories/air-pollutant-emissions-trends-data as of Sep. 28, 2026.