SmogRank / World / Thailand / July 2023
Most polluted cities in Thailand, July 2023
1 city in Thailand ranked by their average PM2.5 over the 31 days. Worst: Tha Bo at 14.5 µg/m³, #86 of 1,110 cities in the world. A city needs measurements on 70% of the days to be ranked.
OpenAQ's archive, where our readings come from, has almost none for one of these days. Cities in the United States and Europe have it from the EPA's and the European Environment Agency's own records of the same monitors; elsewhere a city's average is over its other days. Why.
- 1Tha BoNong Khai 25
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
All cities in the world, July 2023 · Thailand now
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SmogRank, most polluted cities in Thailand, PM2.5, July 2023, smogrank.com/th/history/2023-07 (accessed 2 Oct 2026).
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