Air quality in the United States based on common air pollutants has improved considerably over the past two decades. In 2022, annual concentrations of nitrogen dioxide were more than 50 percent below 2000 levels, while carbon monoxide concentrations were almost 70 percent lower.
Percentage change in air quality in the United States from 2000 to 2022, by pollutant
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Environmental Protection Agency. (November 1, 2023). Percentage change in air quality in the United States from 2000 to 2022, by pollutant [Graph]. In Statista. Retrieved December 03, 2024, from https://www.statista.com/statistics/1445931/change-in-air-quality-in-the-us/
Environmental Protection Agency. "Percentage change in air quality in the United States from 2000 to 2022, by pollutant." Chart. November 1, 2023. Statista. Accessed December 03, 2024. https://www.statista.com/statistics/1445931/change-in-air-quality-in-the-us/
Environmental Protection Agency. (2023). Percentage change in air quality in the United States from 2000 to 2022, by pollutant. Statista. Statista Inc.. Accessed: December 03, 2024. https://www.statista.com/statistics/1445931/change-in-air-quality-in-the-us/
Environmental Protection Agency. "Percentage Change in Air Quality in The United States from 2000 to 2022, by Pollutant." Statista, Statista Inc., 1 Nov 2023, https://www.statista.com/statistics/1445931/change-in-air-quality-in-the-us/
Environmental Protection Agency, Percentage change in air quality in the United States from 2000 to 2022, by pollutant Statista, https://www.statista.com/statistics/1445931/change-in-air-quality-in-the-us/ (last visited December 03, 2024)
Percentage change in air quality in the United States from 2000 to 2022, by pollutant [Graph], Environmental Protection Agency, November 1, 2023. [Online]. Available: https://www.statista.com/statistics/1445931/change-in-air-quality-in-the-us/
