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Guangdong, China

Niucheng · Air quality

Monday, Nov 16 · Asia/Shanghai

Niucheng air quality

US air quality index

125

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
90 µg/m³
PM2.5
93 µg/m³
PM10
94 µg/m³
Ozone
0 µg/m³
Nitrogen dioxide
59 µg/m³
Sulfur dioxide
9 µg/m³
Carbon monoxide
703 µg/m³
European AQI (separate scale)
4