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Sichuan, China

Zhuandou · Air quality

Sunday, Nov 15 · Asia/Shanghai

Zhuandou air quality

US air quality index

103

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
10 µg/m³
PM2.5
12 µg/m³
PM10
15 µg/m³
Ozone
69 µg/m³
Nitrogen dioxide
3 µg/m³
Sulfur dioxide
3 µg/m³
Carbon monoxide
244 µg/m³
European AQI (separate scale)
4