Tamil Nadu, India
Ponneri · Kalidad ng hangin
Miyerkules, Nob 11 · Asia/Kolkata
Ponneri air quality
US air quality index
141Masama sa kalusugan ng mga sensitibong grupo
US EPA scale
- Mabuti0–50
- Katamtaman51–100
- Masama sa kalusugan ng mga sensitibong grupo101–150Current category
- 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
- 44 µg/m³
- PM2.5
- 54 µg/m³
- PM10
- 59 µg/m³
- Osono
- 73 µg/m³
- Nitroheno dioksido
- 21 µg/m³
- Asupre dioksido
- 14 µg/m³
- Karbon monoksido
- 508 µg/m³
- European AQI (separate scale)
- 5