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Hunan, China

Futang · Air quality

Friday, Oct 30 · Asia/Shanghai

Futang air quality

US air quality index

102

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
46 µg/m³
PM2.5
50 µg/m³
PM10
50 µg/m³
Ozone
43.3 µg/m³
Nitrogen dioxide
7.7 µg/m³
Sulfur dioxide
7.7 µg/m³
Carbon monoxide
625 µg/m³
European AQI (separate scale)
4