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Nan, Thailand

Tha Wang Pha · Air quality

Friday, Oct 23 · Asia/Bangkok

Tha Wang Pha air quality

US air quality index

44

Good

US EPA scale

  1. Good0–50Current category
  2. Moderate51–100
  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
9 µg/m³
PM2.5
10 µg/m³
PM10
10 µg/m³
Ozone
73.3 µg/m³
Nitrogen dioxide
7.7 µg/m³
Sulfur dioxide
8 µg/m³
Carbon monoxide
203.7 µg/m³
European AQI (separate scale)
2