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Chaharmahal and Bakhtiari, Iran

Emām Qeys · Air quality

Wednesday, Nov 4 · Asia/Tehran

Emām Qeys air quality

US air quality index

55

Moderate

US EPA scale

  1. Good0–50
  2. Moderate51–100Current category
  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
6 µg/m³
PM10
17 µg/m³
Ozone
66 µg/m³
Nitrogen dioxide
6 µg/m³
Sulfur dioxide
1 µg/m³
Carbon monoxide
126 µg/m³
European AQI (separate scale)
2