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Sichuan, China

Nanchong · Air quality

Saturday, Oct 31 · Asia/Shanghai

Nanchong air quality

US air quality index

121

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
57 µg/m³
PM2.5
60 µg/m³
PM10
60 µg/m³
Ozone
10.3 µg/m³
Nitrogen dioxide
23 µg/m³
Sulfur dioxide
2.3 µg/m³
Carbon monoxide
598.7 µg/m³
European AQI (separate scale)
4