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Guangdong, China

Shiqi · Air quality

Monday, Nov 2 · Asia/Shanghai

Shiqi air quality

US air quality index

109

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
65 µg/m³
PM2.5
69 µg/m³
PM10
71 µg/m³
Ozone
6.3 µg/m³
Nitrogen dioxide
88.7 µg/m³
Sulfur dioxide
20.3 µg/m³
Carbon monoxide
903.7 µg/m³
European AQI (separate scale)
4