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Hunan, China

Dengjiapu · Air quality

Saturday, Oct 31 · Asia/Shanghai

Dengjiapu air quality

US air quality index

138

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
78 µg/m³
PM2.5
83 µg/m³
PM10
84 µg/m³
Ozone
24.7 µg/m³
Nitrogen dioxide
9.7 µg/m³
Sulfur dioxide
6 µg/m³
Carbon monoxide
875 µg/m³
European AQI (separate scale)
5