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Heilongjiang, China

Ang’angxi · Air quality

Tuesday, Nov 3 · Asia/Shanghai

Ang’angxi air quality

US air quality index

122

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
5 µg/m³
PM2.5
5 µg/m³
PM10
6 µg/m³
Ozone
36.7 µg/m³
Nitrogen dioxide
17.3 µg/m³
Sulfur dioxide
4.3 µg/m³
Carbon monoxide
199 µg/m³
European AQI (separate scale)
4