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Hamadan Province, Iran

Nanaj · Air quality

Monday, Oct 26 · Asia/Tehran

Nanaj air quality

US air quality index

36

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
5 µg/m³
PM2.5
7 µg/m³
PM10
10 µg/m³
Ozone
46 µg/m³
Nitrogen dioxide
24 µg/m³
Sulfur dioxide
6 µg/m³
Carbon monoxide
235.3 µg/m³
European AQI (separate scale)
1