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Chongqing, China

Shichuan · Air quality

Monday, Nov 2 · Asia/Shanghai

Shichuan air quality

US air quality index

111

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
39 µg/m³
PM2.5
44 µg/m³
PM10
47 µg/m³
Ozone
2 µg/m³
Nitrogen dioxide
30.3 µg/m³
Sulfur dioxide
9.7 µg/m³
Carbon monoxide
517.7 µg/m³
European AQI (separate scale)
4