Air quality in the United States based on common air pollutants has improved considerably over the past two decades. In 2023, 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 2023, by pollutant
Profit from the additional features of your individual account
Currently, you are using a shared account. To use individual functions (e.g., mark statistics as favourites, set
statistic alerts) please log in with your personal account.
If you are an admin, please authenticate by logging in again.
Learn more about how Statista can support your business.
Environmental Protection Agency. (January 8, 2025). Percentage change in air quality in the United States from 2000 to 2023, by pollutant [Graph]. In Statista. Retrieved April 04, 2025, 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 2023, by pollutant." Chart. January 8, 2025. Statista. Accessed April 04, 2025. https://www.statista.com/statistics/1445931/change-in-air-quality-in-the-us/
Environmental Protection Agency. (2025). Percentage change in air quality in the United States from 2000 to 2023, by pollutant. Statista. Statista Inc.. Accessed: April 04, 2025. 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 2023, by Pollutant." Statista, Statista Inc., 8 Jan 2025, 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 2023, by pollutant Statista, https://www.statista.com/statistics/1445931/change-in-air-quality-in-the-us/ (last visited April 04, 2025)
Percentage change in air quality in the United States from 2000 to 2023, by pollutant [Graph], Environmental Protection Agency, January 8, 2025. [Online]. Available: https://www.statista.com/statistics/1445931/change-in-air-quality-in-the-us/
