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Hubei, China

Xicheng · Air quality

Tuesday, Nov 3 · Asia/Shanghai

Xicheng air quality

US air quality index

105

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
31 µg/m³
PM2.5
42 µg/m³
PM10
67 µg/m³
Ozone
18 µg/m³
Nitrogen dioxide
41.3 µg/m³
Sulfur dioxide
17.3 µg/m³
Carbon monoxide
616 µg/m³
European AQI (separate scale)
4