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Estimated U.S. Emissions of Carbon Monoxide
(Million short tons)
Details may not add up to totals due to rounding in the source.
KEY: R = revised.
aIndustrial processes consists of chemical and allied product manufacturing, metals processing, petroleum and related industries, other industrial processes; and solvent utilization, storage, and transport.
U.S. Environmental Protection Agency, Air Emissions Inventories, Air Pollutant Emissions Trends Data, National Annual Emissions, available at https://www.epa.gov/air-emissions-inventories/air-pollutant-emissions-tr... as of May 7, 2020.