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Xinjiang, China

Chapchal · Air quality

Saturday, Oct 24 · Asia/Urumqi

Chapchal air quality

US air quality index

112

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
6 µg/m³
PM2.5
24 µg/m³
PM10
106 µg/m³
Ozone
57 µg/m³
Nitrogen dioxide
4 µg/m³
Sulfur dioxide
7 µg/m³
Carbon monoxide
157 µg/m³
European AQI (separate scale)
6