The ATS recommends an 8-hour max Ozone (O3) standard of 60 ppb.
- PARTICLE POLLUTION
The ATS recommends a long-term fine particulate matter (PM2.5) standard of 11 µg/m3 and a short-term PM2.5 standard of 25 µg/m3.
Mortality incidence is aggregated from changes in mortality risk occurring across entire populations of individuals in each city.
Major health endpoints include: acute myocardial infarction, chronic bronchitis, hospital admissions (cardiovascular and respiratory), emergency department visits (respiratory), and lung cancer.
Impacted Days includes: restricted activity days, acute respiratory symptoms, work loss days, and school loss days.
Annual health impact estimates are shown for pollution concentrations exceeding ATS-recommended standards. Additional health benefits, while not estimated here, are expected to occur with further improvements in air quality.