SmogRank / World / Cambodia / January 2026

Most polluted cities in Cambodia, January 2026

1 city in Cambodia ranked by their average PM2.5 over the 31 days. Worst: Chrang Chamreh Muoy at 44.1 µg/m³, #66 of 2,281 cities in the world. A city needs measurements on 70% of the days to be ranked.

  1. 1Chrang Chamreh Muoylow-cost sensorsPhnom Penh
    122
Good0–50
Moderate51–100
Sensitive groups101–150
Unhealthy151–200
Very unhealthy201–300
Hazardous301+

The US EPA's Air Quality Index for PM2.5 (2024 breakpoints). 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, January 2026 · Cambodia now

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SmogRank, most polluted cities in Cambodia, PM2.5, January 2026, smogrank.com/kh/history/2026-01 (accessed 2 Oct 2026).

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