SmogRank / World / Asia / Thailand / Suphan Buri

Most polluted cities in Suphan Buri, Thailand

1 measured city, last 7 days; 0 above the WHO 24-hour guideline. Worst: Suphan Buri at 7.3 µg/m³, #1,403 in the world.

Uthai Thani: 1 measured cityNakhon SawanChai Nat: 1 measured citySing Buri: 1 measured cityLopburi: 1 measured cityAng ThongPhra Nakhon Si Ayutthaya: 1 measured cityNonthaburi: 1 measured cityPathum Thani: 1 measured cityBangkok: 14 measured citiesKanchanaburi: 1 measured citySuphan Buri: 1 measured cityRatchaburiNakhon Pathom: 1 measured cityTak#1 Suphan Buri: 7.3 µg/m³
Each dot is a measured city, coloured by its PM2.5; tap a dot to open the city.
  1. 1Suphan Buri 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 Suphan Buri, Thailand, PM2.5, last 7 days to 2 Oct 2026, 03:00 UTC, smogrank.com/th/region/suphan-buri?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.