On road vehicles in the United States released 188,000 tons of ammonia (NH₃) in 2023. Emission standards in the North American country saw road transport NH₃ emissions drop nearly 50 percent between 2002 and 2020. On road vehicles include passenger vehicles, heavy-duty trucks and buses, and motorcycles.
Annual ammonia (NH₃) emissions from road vehicles in the United States from 2002 to 2023
(in 1,000 tons)
* The higher emissions in 2021 are due to a method change for onroad mobile sources leading to increased emission rates for ammonia.
Figures refer to on-road or highway emission sources, which include vehicles used on roads for transportation of passengers or freight.
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Environmental Protection Agency. (February 9, 2024). Annual ammonia (NH₃) emissions from road vehicles in the United States from 2002 to 2023 (in 1,000 tons) [Graph]. In Statista. Retrieved November 23, 2024, from https://www.statista.com/statistics/1382171/road-transportation-ammonia-emissions-us/
Environmental Protection Agency. "Annual ammonia (NH₃) emissions from road vehicles in the United States from 2002 to 2023 (in 1,000 tons)." Chart. February 9, 2024. Statista. Accessed November 23, 2024. https://www.statista.com/statistics/1382171/road-transportation-ammonia-emissions-us/
Environmental Protection Agency. (2024). Annual ammonia (NH₃) emissions from road vehicles in the United States from 2002 to 2023 (in 1,000 tons). Statista. Statista Inc.. Accessed: November 23, 2024. https://www.statista.com/statistics/1382171/road-transportation-ammonia-emissions-us/
Environmental Protection Agency. "Annual Ammonia (Nh₃) Emissions from Road Vehicles in The United States from 2002 to 2023 (in 1,000 Tons)." Statista, Statista Inc., 9 Feb 2024, https://www.statista.com/statistics/1382171/road-transportation-ammonia-emissions-us/
Environmental Protection Agency, Annual ammonia (NH₃) emissions from road vehicles in the United States from 2002 to 2023 (in 1,000 tons) Statista, https://www.statista.com/statistics/1382171/road-transportation-ammonia-emissions-us/ (last visited November 23, 2024)
Annual ammonia (NH₃) emissions from road vehicles in the United States from 2002 to 2023 (in 1,000 tons) [Graph], Environmental Protection Agency, February 9, 2024. [Online]. Available: https://www.statista.com/statistics/1382171/road-transportation-ammonia-emissions-us/
