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Shaanxi, China

Tianwang · Air quality

Friday, Nov 6 · Asia/Shanghai

Tianwang air quality

US air quality index

105

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
51 µg/m³
PM2.5
57 µg/m³
PM10
61 µg/m³
Ozone
12.7 µg/m³
Nitrogen dioxide
57.3 µg/m³
Sulfur dioxide
16.7 µg/m³
Carbon monoxide
684.3 µg/m³
European AQI (separate scale)
4