Air quality index by municipality [xlsx] (English)

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XLSX

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Publisher-reported update

2026-04-17

Lists the percentage of hours for each year at a given air quality level, by municipality. The Air Quality Health Index is calculated based on the relative risks of a combination of common air pollutants that is known to harm human health. These pollutants are: ozone (O3) at ground level, particulate matter (PM2.5/PM10), and nitrogen dioxide (NO2). Risks are defined as follows: 1-3 High Quality; 4-6 Moderate Quality; 7-9 Low Quality; 10+ Very Low Quality.

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