The Health of the Air report provides estimates of the health impacts associated with outdoor air pollution in every city in the US. Health impacts are estimated for air pollution levels greater than recommended by the American Thoracic Society (ATS). For cities already meeting these recommendations, no health impacts are estimated here but are expected to occur with continued improvements in air quality.
United States
Fine Particulate Matter (PM2.5)
Ozone (O3)
Excess mortality 10,980
Excess Lung Cancer Incidence 2,950
Excess morbidity 18,150
Impacted days 10,744,900
Excess mortality 3,670
Excess morbidity 14,890
Impacted days 29,037,600
Health impacts from outdoor concentrations of PM2.5 greater than ATS recommendations (8 µg/m3 for long-term PM2.5; 25 µg/m3 for short-term PM2.5).
Areas already meeting these recommended levels are expected to benefit from further improvements in air quality but these additional health benefits are not included in this analysis.
Areas already meeting these recommended levels are expected to benefit from further improvements in air quality but these additional health benefits are not included in this analysis.
Health impacts from outdoor concentrations of O3 greater than ATS recommendations (60 ppb).
Areas already meeting these recommended levels are expected to benefit from further improvements in air quality but these additional health benefits are not included in this analysis.
Areas already meeting these recommended levels are expected to benefit from further improvements in air quality but these additional health benefits are not included in this analysis.
Annual Excess Mortality
- 1000+
- 501-750
- 201-500
- 101-200
- 51-100
- 26-50
- 1-25
- 0