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Guangdong, China

Huangshi · Air quality

Sunday, Nov 8 · Asia/Shanghai

Huangshi air quality

US air quality index

104

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
34 µg/m³
PM2.5
38 µg/m³
PM10
40 µg/m³
Ozone
25.3 µg/m³
Nitrogen dioxide
46 µg/m³
Sulfur dioxide
8.3 µg/m³
Carbon monoxide
401.7 µg/m³
European AQI (separate scale)
4