Koh Samui vs Chiang Rai

Live air quality comparison. Koh Samui has cleaner air right now.

Thailand
Koh Samui
35
Good
Thailand
Chiang Rai
43
Good
MetricKoh SamuiChiang Rai
AQI3543
PM2.56 μg/m³8.2 μg/m³
PM107.8 μg/m³8.5 μg/m³
Ozone75 ppb55 ppb
NO22.2 ppb7.4 ppb

Lower values mean cleaner air. Updated hourly. Sources: OpenAQ, Open-Meteo.