SmogRank / World / Asia / Thailand / Surin

Most polluted cities in Surin, Thailand

1 measured city, last 7 days; 0 above the WHO 24-hour guideline. Worst: Surin at 6.6 µg/m³, #1,617 in the world.

Khon Kaen: 1 measured cityMaha Sarakham: 1 measured cityRoi Et: 1 measured cityNakhon Ratchasima: 1 measured cityBuriram: 1 measured citySurin: 1 measured citySi Sa Ket: 1 measured cityYasothon: 1 measured city#1 Surin: 6.6 µg/m³
Each dot is a measured city, coloured by its PM2.5; tap a dot to open the city.
  1. 1Surin 12
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 Surin, Thailand, PM2.5, last 7 days to 2 Oct 2026, 03:00 UTC, smogrank.com/th/region/surin?w=7d.

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Updated 2026-10-02 03:07 UTC. Values are PM2.5 (fine particles), the median of each city's monitors, as the India AQI PM2.5 sub-index.