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North Khorasan, Iran

Mollā Bāqer · Air quality

Saturday, Oct 31 · Asia/Tehran

Mollā Bāqer air quality

US air quality index

38

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
7 µg/m³
PM2.5
9 µg/m³
PM10
15 µg/m³
Ozone
65.3 µg/m³
Nitrogen dioxide
8.3 µg/m³
Sulfur dioxide
2.3 µg/m³
Carbon monoxide
158 µg/m³
European AQI (separate scale)
2