SmogRank / World / Asia / Thailand / Nan

Most polluted cities in Nan, Thailand

No city in Nan, Thailand has enough readings to rank so far this year.

A city joins this ranking with enough days of readings so far this year; none here has that right now, so there is nothing to map or chart.

Last 7 days: 1 measured city

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

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