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Tehran, Iran

Mehrābād · Kalidad ng hangin

Linggo, Nob 15 · Asia/Tehran

Mehrābād air quality

US air quality index

71

Katamtaman

US EPA scale

  1. Mabuti0–50
  2. Katamtaman51–100Current category
  3. Masama sa kalusugan ng mga sensitibong grupo101–150
  4. Masama sa kalusugan151–200
  5. Lubhang masama sa kalusugan201–300
  6. Mapanganib301–500+

A higher US AQI indicates more air pollution and greater health concern. Categories and pollutant concentration units are different measures.

Understand the EPA scale

Lahat ng Polutante

PM1
21 µg/m³
PM2.5
22 µg/m³
PM10
22 µg/m³
Osono
18 µg/m³
Nitroheno dioksido
67.3 µg/m³
Asupre dioksido
33.3 µg/m³
Karbon monoksido
581.3 µg/m³
European AQI (separate scale)
3