Chiang Mai — Air Quality (เชียงใหม่)

Thailand, Asia. US AQI: 43 (Good). Air Quality Score: 94.3/100. Dominant pollutant: O3.

Last updated: · Updated hourly

Quanteta Scores

US AQI 0 Rank 20 / 50
Air Quality Score 0/100 ★ Rank 2 / 50
Breathability 0/100 ★ Rank 2 / 50

City Info

City ID
aq-chiang-mai
Country
Thailand (TH)
Region
Asia
Population
131,000
Coordinates
18.7883, 98.9853
Timezone
Asia/Bangkok
AQI Level
Good
EU AQI
29
Dominant Pollutant
O3
Measured At
2026-05-24T08:00Z

Pollutant Concentrations

Pollutant Concentration
PM2.5 4.2 μg/m³
PM10 5.7 μg/m³
O3 Dominant 72.0 μg/m³
NO2 0.7 μg/m³
SO2 0.9 μg/m³
CO 218.0 μg/m³
PM2.5: 1.4% PM10: 1.9% O3: 23.9% NO2: 0.2% SO2: 0.3% CO: 72.3% Air Quality