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Auckland, Selandia Baru

Helensville · Kualitas udara

Selasa, 3 Nov · Pacific/Auckland

Helensville air quality

US air quality index

51

Sedang

US EPA scale

  1. Baik0–50
  2. Sedang51–100Current category
  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
1 µg/m³
PM2.5
12 µg/m³
PM10
20 µg/m³
Ozon
39,3 µg/m³
Nitrogen dioksida
1,7 µg/m³
Sulfur dioksida
1 µg/m³
Karbon monoksida
72 µg/m³
European AQI (separate scale)
2