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Hunan, China

Chenjiatan · Kalidad ng hangin

Sabado, Nob 7 · Asia/Shanghai

Chenjiatan air quality

US air quality index

70

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
28 µg/m³
PM2.5
31 µg/m³
PM10
32 µg/m³
Osono
56 µg/m³
Nitroheno dioksido
7.7 µg/m³
Asupre dioksido
6.7 µg/m³
Karbon monoksido
336.7 µg/m³
European AQI (separate scale)
3