Hunan, China
Tantou · Air quality
Saturday, Oct 31 · Asia/Shanghai
Tantou air quality
US air quality index
139Unhealthy for sensitive groups
US EPA scale
- Good0–50
- Moderate51–100
- Unhealthy for sensitive groups101–150Current category
- Unhealthy151–200
- Very unhealthy201–300
- 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 scaleAll pollutants
- PM1
- 94 µg/m³
- PM2.5
- 98 µg/m³
- PM10
- 99 µg/m³
- Ozone
- 14 µg/m³
- Nitrogen dioxide
- 50 µg/m³
- Sulfur dioxide
- 61 µg/m³
- Carbon monoxide
- 1,532 µg/m³
- European AQI (separate scale)
- 5