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Jiangxi, China

Hechuan · Kalidad ng hangin

Biyernes, Nob 13 · Asia/Shanghai

Hechuan air quality

US air quality index

63

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
29 µg/m³
PM2.5
31 µg/m³
PM10
32 µg/m³
Osono
15.7 µg/m³
Nitroheno dioksido
18.7 µg/m³
Asupre dioksido
5 µg/m³
Karbon monoksido
465 µg/m³
European AQI (separate scale)
2