Most polluted cities in Azores, Portugal

0 measured cities, last 30 days.

Each dot is a measured city, coloured by its PM2.5; tap a dot to open the city.

No city has enough measurements for this window yet.

Good0–50

Satisfactory51–100

Moderate101–200

Poor201–300

Very poor301–400

Severe401+

India's National Air Quality Index (CPCB), PM2.5 sub-index. Show values as: µg/m³ · US AQI · India AQI · China AQI · European AQI · UK DAQI · Canada AQHI+. About the scales

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SmogRank, most polluted cities in Azores, Portugal, PM2.5, last 30 days to 2 Oct 2026, 05:00 UTC, smogrank.com/pt/region/azores?w=30d.

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Updated 2026-10-02 05:07 UTC. Values are PM2.5 (fine particles), the median of each city's monitors, as the India AQI PM2.5 sub-index.