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Jiangsu, China

Zizhuang · Air quality

Wednesday, Nov 11 · Asia/Shanghai

Zizhuang 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
35 µg/m³
PM2.5
37 µg/m³
PM10
38 µg/m³
Ozone
40 µg/m³
Nitrogen dioxide
18 µg/m³
Sulfur dioxide
7 µg/m³
Carbon monoxide
401 µg/m³
European AQI (separate scale)
4