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Anhui, China

Qingshan · Air quality

Tuesday, Nov 3 · Asia/Shanghai

Qingshan 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
25 µg/m³
PM2.5
41 µg/m³
PM10
65 µg/m³
Ozone
23.7 µg/m³
Nitrogen dioxide
14.3 µg/m³
Sulfur dioxide
3 µg/m³
Carbon monoxide
442 µg/m³
European AQI (separate scale)
4