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Jiangsu, China

Qintong · Air quality

Sunday, Nov 1 · Asia/Shanghai

Qintong air quality

US air quality index

122

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
42 µg/m³
PM2.5
45 µg/m³
PM10
45 µg/m³
Ozone
29 µg/m³
Nitrogen dioxide
25.7 µg/m³
Sulfur dioxide
5 µg/m³
Carbon monoxide
529.3 µg/m³
European AQI (separate scale)
4