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Chongqing, China

Zhuyang · Air quality

Saturday, Nov 7 · Asia/Shanghai

Zhuyang air quality

US air quality index

125

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
15 µg/m³
PM2.5
17 µg/m³
PM10
17 µg/m³
Ozone
49 µg/m³
Nitrogen dioxide
15 µg/m³
Sulfur dioxide
9 µg/m³
Carbon monoxide
358.3 µg/m³
European AQI (separate scale)
4