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Heilongjiang, China

Shuangchahe · Air quality

Monday, Nov 9 · Asia/Shanghai

Shuangchahe air quality

US air quality index

107

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
31 µg/m³
PM2.5
35 µg/m³
PM10
37 µg/m³
Ozone
43 µg/m³
Nitrogen dioxide
12 µg/m³
Sulfur dioxide
6.7 µg/m³
Carbon monoxide
475 µg/m³
European AQI (separate scale)
4