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Fars, Iran

Emām Shahr · Air quality

Saturday, Nov 7 · Asia/Tehran

Emām Shahr air quality

US air quality index

77

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
9 µg/m³
PM2.5
23 µg/m³
PM10
90 µg/m³
Ozone
80 µg/m³
Nitrogen dioxide
3.7 µg/m³
Sulfur dioxide
2.7 µg/m³
Carbon monoxide
139 µg/m³
European AQI (separate scale)
4