Koh Samui vs Chiang Rai

Live air quality comparison. Chiang Rai has cleaner air right now.

Thailand
Koh Samui
30
Good
Thailand
Chiang Rai
28
Good
MetricKoh SamuiChiang Rai
AQI3028
PM2.54.9 μg/m³5.8 μg/m³
PM106.8 μg/m³5.9 μg/m³
Ozone62 ppb56 ppb
NO21.7 ppb6.1 ppb

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