Tianjin, China
Tangjiakou · Air quality
Saturday, Nov 14 · Asia/Shanghai
Tangjiakou air quality
US air quality index
225Very unhealthy
US EPA scale
- Good0–50
- Moderate51–100
- Unhealthy for sensitive groups101–150
- Unhealthy151–200
- Very unhealthy201–300Current category
- 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
- 302 µg/m³
- PM2.5
- 316 µg/m³
- PM10
- 323 µg/m³
- Ozone
- 0 µg/m³
- Nitrogen dioxide
- 45 µg/m³
- Sulfur dioxide
- 65 µg/m³
- Carbon monoxide
- 3,545 µg/m³
- European AQI (separate scale)
- 6