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.
The data contained on this website correspond to the 2019 report. New ATS recommendations have since been adopted and will be reflected in the next report to be released in 2021.