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Guangdong, China

Lianhua · Air quality

Sunday, Nov 15 · Asia/Shanghai

Lianhua air quality

US air quality index

105

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
54 µg/m³
PM2.5
57 µg/m³
PM10
58 µg/m³
Ozone
1.3 µg/m³
Nitrogen dioxide
54.7 µg/m³
Sulfur dioxide
5.7 µg/m³
Carbon monoxide
632.7 µg/m³
European AQI (separate scale)
4