Hunan, China
Xiaozhang · Air quality
Sunday, Oct 25 · Asia/Shanghai
Xiaozhang air quality
US air quality index
105Unhealthy 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
- 28 µg/m³
- PM2.5
- 34 µg/m³
- PM10
- 37 µg/m³
- Ozone
- 60 µg/m³
- Nitrogen dioxide
- 3 µg/m³
- Sulfur dioxide
- 2 µg/m³
- Carbon monoxide
- 318 µg/m³
- European AQI (separate scale)
- 4