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Tianjin, China

Beizhakou · Air quality

Friday, Oct 30 · Asia/Shanghai

Beizhakou air quality

US air quality index

111

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
56 µg/m³
PM2.5
87 µg/m³
PM10
179 µg/m³
Ozone
2.7 µg/m³
Nitrogen dioxide
53.7 µg/m³
Sulfur dioxide
11.7 µg/m³
Carbon monoxide
831 µg/m³
European AQI (separate scale)
4