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Chongqing, China

Daxi · Air quality

Monday, Oct 26 · Asia/Shanghai

Daxi air quality

US air quality index

108

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
38 µg/m³
PM2.5
43 µg/m³
PM10
47 µg/m³
Ozone
43 µg/m³
Nitrogen dioxide
4.7 µg/m³
Sulfur dioxide
3 µg/m³
Carbon monoxide
322.7 µg/m³
European AQI (separate scale)
4