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Sichuan, China

Xiantan · Kalidad ng hangin

Lunes, Nob 9 · Asia/Shanghai

Xiantan air quality

US air quality index

78

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
12 µg/m³
PM2.5
15 µg/m³
PM10
17 µg/m³
Osono
44 µg/m³
Nitroheno dioksido
9.3 µg/m³
Asupre dioksido
3.7 µg/m³
Karbon monoksido
210.3 µg/m³
European AQI (separate scale)
4