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Gansu, Tiongkok

Xiji · Kualitas udara

Minggu, 8 Nov · Asia/Shanghai

Xiji air quality

US air quality index

39

Baik

US EPA scale

  1. Baik0–50Current category
  2. Sedang51–100
  3. Tidak sehat bagi kelompok sensitif101–150
  4. Tidak sehat151–200
  5. Sangat tidak sehat201–300
  6. Berbahaya301–500+

A higher US AQI indicates more air pollution and greater health concern. Categories and pollutant concentration units are different measures.

Understand the EPA scale

Semua polutan

PM1
4 µg/m³
PM2.5
8 µg/m³
PM10
20 µg/m³
Ozon
67 µg/m³
Nitrogen dioksida
1 µg/m³
Sulfur dioksida
1 µg/m³
Karbon monoksida
137,7 µg/m³
European AQI (separate scale)
2