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Guangdong, China

Dongjiao · Air quality

Saturday, Nov 7 · Asia/Shanghai

Dongjiao air quality

US air quality index

123

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
22 µg/m³
PM2.5
24 µg/m³
PM10
26 µg/m³
Ozone
97.3 µg/m³
Nitrogen dioxide
29.3 µg/m³
Sulfur dioxide
8.3 µg/m³
Carbon monoxide
404.7 µg/m³
European AQI (separate scale)
4