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Pernik, Bulgaria

Tran · Kalidad ng hangin

Martes, Okt 27 · Europe/Sofia

Tran air quality

US air quality index

24

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
2 µg/m³
PM2.5
3 µg/m³
PM10
3 µg/m³
Osono
53 µg/m³
Nitroheno dioksido
1 µg/m³
Asupre dioksido
1 µg/m³
Karbon monoksido
131 µg/m³
European AQI (separate scale)
2