Skip to weather
weather.ws

Chiang Mai, Thailand

Hang Dong · Air quality

Tuesday, Oct 27 · Asia/Bangkok

Hang Dong air quality

US air quality index

54

Moderate

US EPA scale

  1. Good0–50
  2. Moderate51–100Current category
  3. Unhealthy for sensitive groups101–150
  4. Unhealthy151–200
  5. Very unhealthy201–300
  6. Hazardous301–500+

A higher US AQI indicates more air pollution and greater health concern. Categories and pollutant concentration units are different measures.

Understand the EPA scale

All pollutants

PM1
12 µg/m³
PM2.5
13 µg/m³
PM10
14 µg/m³
Ozone
98 µg/m³
Nitrogen dioxide
3 µg/m³
Sulfur dioxide
3 µg/m³
Carbon monoxide
250 µg/m³
European AQI (separate scale)
2