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Guangdong, China

Gaocun · Air quality

Saturday, Oct 31 · Asia/Shanghai

Gaocun air quality

US air quality index

145

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
25 µg/m³
PM2.5
28 µg/m³
PM10
29 µg/m³
Ozone
130.7 µg/m³
Nitrogen dioxide
6.3 µg/m³
Sulfur dioxide
11 µg/m³
Carbon monoxide
291 µg/m³
European AQI (separate scale)
5