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Zhejiang, China

Li’ao · Air quality

Saturday, Oct 31 · Asia/Shanghai

Li’ao air quality

US air quality index

167

Unhealthy

US EPA scale

  1. Good0–50
  2. Moderate51–100
  3. Unhealthy for sensitive groups101–150
  4. Unhealthy151–200Current category
  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
41 µg/m³
PM2.5
47 µg/m³
PM10
54 µg/m³
Ozone
53.3 µg/m³
Nitrogen dioxide
19 µg/m³
Sulfur dioxide
13.7 µg/m³
Carbon monoxide
402.7 µg/m³
European AQI (separate scale)
6