Carbon monoxide emissions from highway vehicles in the United States totaled 13 million tons in 2023.
The U.S. has cut transportation-related CO emissions significantly over the past three decades due to increasingly stringent emissions standards.
Transportation is a major source of CO, and in 2023 accounted for nearly 60 percent of CO emissions in the U.S. (excluding wildfires).
Carbon monoxide emissions from transportation in the United States from 1990 to 2023, by source
(in 1,000 tons)
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Carbon monoxide emissions from transportation in the United States from 1990 to 2023, by source
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Environmental Protection Agency. (February 9, 2024). Carbon monoxide emissions from transportation in the United States from 1990 to 2023, by source (in 1,000 tons) [Graph]. In Statista. Retrieved April 05, 2025, from https://www.statista.com/statistics/999680/us-carbon-monoxide-emissions-from-storage-and-transport/
Environmental Protection Agency. "Carbon monoxide emissions from transportation in the United States from 1990 to 2023, by source (in 1,000 tons)." Chart. February 9, 2024. Statista. Accessed April 05, 2025. https://www.statista.com/statistics/999680/us-carbon-monoxide-emissions-from-storage-and-transport/
Environmental Protection Agency. (2024). Carbon monoxide emissions from transportation in the United States from 1990 to 2023, by source (in 1,000 tons). Statista. Statista Inc.. Accessed: April 05, 2025. https://www.statista.com/statistics/999680/us-carbon-monoxide-emissions-from-storage-and-transport/
Environmental Protection Agency. "Carbon Monoxide Emissions from Transportation in The United States from 1990 to 2023, by Source (in 1,000 Tons)." Statista, Statista Inc., 9 Feb 2024, https://www.statista.com/statistics/999680/us-carbon-monoxide-emissions-from-storage-and-transport/
Environmental Protection Agency, Carbon monoxide emissions from transportation in the United States from 1990 to 2023, by source (in 1,000 tons) Statista, https://www.statista.com/statistics/999680/us-carbon-monoxide-emissions-from-storage-and-transport/ (last visited April 05, 2025)
Carbon monoxide emissions from transportation in the United States from 1990 to 2023, by source (in 1,000 tons) [Graph], Environmental Protection Agency, February 9, 2024. [Online]. Available: https://www.statista.com/statistics/999680/us-carbon-monoxide-emissions-from-storage-and-transport/
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