Razavi Khorasan, Iran
Sāghravan · Kalidad ng hangin
Linggo, Nob 8 · Asia/Tehran
Sāghravan air quality
US air quality index
61Katamtaman
US EPA scale
- Mabuti0–50
- Katamtaman51–100Current category
- Masama sa kalusugan ng mga sensitibong grupo101–150
- Masama sa kalusugan151–200
- Lubhang masama sa kalusugan201–300
- 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 scaleLahat ng Polutante
- PM1
- 9 µg/m³
- PM2.5
- 22 µg/m³
- PM10
- 64 µg/m³
- Osono
- 64 µg/m³
- Nitroheno dioksido
- 4.7 µg/m³
- Asupre dioksido
- 3 µg/m³
- Karbon monoksido
- 138.7 µg/m³
- European AQI (separate scale)
- 4