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Zhejiang, China

Qukou · Air quality

Sunday, Nov 1 · Asia/Shanghai

Qukou air quality

US air quality index

131

Unhealthy for sensitive groups

US EPA scale

  1. Good0–50
  2. Moderate51–100
  3. Unhealthy for sensitive groups101–150Current category
  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
50 µg/m³
PM2.5
58 µg/m³
PM10
63 µg/m³
Ozone
38 µg/m³
Nitrogen dioxide
13 µg/m³
Sulfur dioxide
5 µg/m³
Carbon monoxide
341 µg/m³
European AQI (separate scale)
4