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Tehran, Iran

Fīrūzkūh · Kalidad ng hangin

Miyerkules, Nob 4 · Asia/Tehran

Fīrūzkūh air quality

US air quality index

43

Mabuti

US EPA scale

  1. Mabuti0–50Current category
  2. Katamtaman51–100
  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
16 µg/m³
PM2.5
19 µg/m³
PM10
21 µg/m³
Osono
33.7 µg/m³
Nitroheno dioksido
23.3 µg/m³
Asupre dioksido
8.7 µg/m³
Karbon monoksido
247.3 µg/m³
European AQI (separate scale)
2