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Sơn La Province, Vietnam

Phổng Lăng · Air quality

Sunday, Nov 1 · Asia/Ho Chi Minh

Phổng Lăng air quality

US air quality index

42

Good

US EPA scale

  1. Good0–50Current category
  2. Moderate51–100
  3. Unhealthy for sensitive groups101–150
  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
11 µg/m³
PM2.5
12 µg/m³
PM10
13 µg/m³
Ozone
35 µg/m³
Nitrogen dioxide
10 µg/m³
Sulfur dioxide
5.3 µg/m³
Carbon monoxide
281.7 µg/m³
European AQI (separate scale)
1