

Hawaii had more communities on the list than any other state with recognition going to Honolulu, Kane’ohe, Mililani Town, Pearl City, Waimalu & Waipahu, each with an air quality index (AQI) of 98.6%. Air quality index is the % of days that AQI is ranked good. They also had an average air pollution index (API) of 78.4. The national API average is 100 (a lower score is best here).
Not too shabby for an area that is among the most populated sectors in the state.
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Source: AQI numbers from Environmental Protection Agency. Air Pollution Index is based on the incidence of airborne lead, NO2, particulate matter, carbon monoxide and ozone depletion.







