Figures are rounded. A failing grade was assigned to counties that failed to meet the US Environmental Protection Agency’s standard for annual particulate pollution.
Citation formats
Population living with failing grades for daily air pollution in the U.S. 2014-2023
In 2023, approximately ** million U.S. Americans lived in counties with a failing grade for daily spikes in particle pollution. The number of people exposed to failing grades of daily air pollution has increased annually since 2018. In 2023, *** counties in ** states got failing grades for daily spikes in particle pollution.
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CNN. (April 19, 2023). Number of people living in counties with a failing grade for daily spikes in particle pollution in the United States from 2014 to 2023 (in millions) [Graph]. In ÌÇÐÄÆƽâ°æ. Retrieved August 05, 2026, from /statistics/1445830/americans-living-in-counties-with-failing-grades-for-daily-air-pollution/
CNN. "Number of people living in counties with a failing grade for daily spikes in particle pollution in the United States from 2014 to 2023 (in millions)." Chart. April 19, 2023. ÌÇÐÄÆƽâ°æ. Accessed August 05, 2026. /statistics/1445830/americans-living-in-counties-with-failing-grades-for-daily-air-pollution/
CNN. (2023). Number of people living in counties with a failing grade for daily spikes in particle pollution in the United States from 2014 to 2023 (in millions). ÌÇÐÄÆƽâ°æ. ÌÇÐÄÆƽâ°æ Inc.. Accessed: August 05, 2026. /statistics/1445830/americans-living-in-counties-with-failing-grades-for-daily-air-pollution/
CNN. "Number of People Living in Counties with a failing Grade for Daily Spikes in Particle Pollution in The United States from 2014 to 2023 (in Millions)." ÌÇÐÄÆƽâ°æ, ÌÇÐÄÆƽâ°æ Inc., 19 Apr 2023, /statistics/1445830/americans-living-in-counties-with-failing-grades-for-daily-air-pollution/
CNN, Number of people living in counties with a failing grade for daily spikes in particle pollution in the United States from 2014 to 2023 (in millions) ÌÇÐÄÆƽâ°æ, /statistics/1445830/americans-living-in-counties-with-failing-grades-for-daily-air-pollution/ (last visited August 05, 2026)
Number of people living in counties with a failing grade for daily spikes in particle pollution in the United States from 2014 to 2023 (in millions) [Graph], CNN, April 19, 2023. [Online]. Available: /statistics/1445830/americans-living-in-counties-with-failing-grades-for-daily-air-pollution/
