Most polluted cities in Nan, Thailand

0 measured cities, last 24 hours.

Each dot is a measured city, coloured by its PM2.5; tap a dot to open the city.

No city has enough measurements for this window yet.

Good0–9.0

Moderate9.1–35.4

Sensitive groups35.5–55.4

Unhealthy55.5–125.4

Very unhealthy125.5–225.4

Hazardous225.5+

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SmogRank, most polluted cities in Nan, Thailand, PM2.5, last 24 hours to 2 Oct 2026, 01:00 UTC, smogrank.com/th/region/nan.

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Updated 2026-10-02 01:07 UTC. Values are PM2.5 in µg/m³ (fine particles), the median of each city's monitors.