Skip to weather
weather.ws

Nghệ An Province, Vietnam

Anh Son · Air quality

Saturday, Nov 7 · Asia/Bangkok

Anh Son air quality

US air quality index

35

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
4 µg/m³
PM2.5
5 µg/m³
PM10
7 µg/m³
Ozone
72.7 µg/m³
Nitrogen dioxide
2.3 µg/m³
Sulfur dioxide
4 µg/m³
Carbon monoxide
176.7 µg/m³
European AQI (separate scale)
2