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Taiwan, Taiwan

Hengchun · Air quality

Saturday, Oct 31 · Asia/Taipei

Hengchun air quality

US air quality index

37

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
2 µg/m³
PM2.5
8 µg/m³
PM10
12 µg/m³
Ozone
78 µg/m³
Nitrogen dioxide
1 µg/m³
Sulfur dioxide
0 µg/m³
Carbon monoxide
116.3 µg/m³
European AQI (separate scale)
2