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Zhejiang, China

Sanjie · Air quality

Friday, Nov 13 · Asia/Shanghai

Sanjie air quality

US air quality index

122

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
36 µg/m³
PM2.5
44 µg/m³
PM10
51 µg/m³
Ozone
14 µg/m³
Nitrogen dioxide
47 µg/m³
Sulfur dioxide
5 µg/m³
Carbon monoxide
493 µg/m³
European AQI (separate scale)
4