SmogRank / World / Philippines / May 2026

Most polluted cities in Philippines, May 2026

2 cities in Philippines ranked by their average PM2.5 over the 31 days. Worst: Quezon City at 25.6 µg/m³, #323 of 2,522 cities in the world. Cleanest: Iloilo at 24.4. A city needs measurements on 70% of the days to be ranked.

  1. 1Quezon Citylow-cost sensorsNational Capital Region
    25.6
  2. 2Iloilolow-cost sensorsWestern Visayas
    24.4
Good0–5
Fair6–15
Moderate16–50
Poor51–90
Very poor91–140
Extremely poor141+

The European Environment Agency's air quality index bands for PM2.5 (2024 revision); it has bands, not numbers, so values stay in µg/m³. Show values as: µg/m³ · US AQI · India AQI · China AQI · European AQI · UK DAQI · Canada AQHI+. About the scales

All cities in the world, May 2026 · Philippines now

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SmogRank, most polluted cities in Philippines, PM2.5, May 2026, smogrank.com/ph/history/2026-05 (accessed 2 Oct 2026).

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