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Zhejiang, China

Yiqiao · Air quality

Friday, Nov 6 · Asia/Shanghai

Yiqiao air quality

US air quality index

137

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
68 µg/m³
PM2.5
71 µg/m³
PM10
72 µg/m³
Ozone
2.7 µg/m³
Nitrogen dioxide
48 µg/m³
Sulfur dioxide
12.7 µg/m³
Carbon monoxide
1,095.7 µg/m³
European AQI (separate scale)
4