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Gilan Province, Iran

Anbār Sar · Air quality

Thursday, Oct 29 · Asia/Tehran

Anbār Sar air quality

US air quality index

47

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
3 µg/m³
PM2.5
9 µg/m³
PM10
23 µg/m³
Ozone
51.3 µg/m³
Nitrogen dioxide
3.7 µg/m³
Sulfur dioxide
1 µg/m³
Carbon monoxide
137 µg/m³
European AQI (separate scale)
2