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Jiangsu, China

Tianshan · Air quality

Monday, Nov 2 · Asia/Shanghai

Tianshan air quality

US air quality index

143

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
43 µg/m³
PM2.5
67 µg/m³
PM10
117 µg/m³
Ozone
29 µg/m³
Nitrogen dioxide
36.7 µg/m³
Sulfur dioxide
8.7 µg/m³
Carbon monoxide
446 µg/m³
European AQI (separate scale)
5