Koh Samui vs Chiang Rai

Live air quality comparison. Both cities show identical AQI right now.

Thailand
Koh Samui
33
Good
Thailand
Chiang Rai
33
Good
MetricKoh SamuiChiang Rai
AQI3333
PM2.54.4 μg/m³5.5 μg/m³
PM105.7 μg/m³5.5 μg/m³
Ozone60 ppb36 ppb
NO21.4 ppb10.2 ppb

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