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Free State, Afrika Selatan

Tweespruit · Kualitas udara

Selasa, 10 Nov · Africa/Johannesburg

Tweespruit air quality

US air quality index

52

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
9 µg/m³
PM2.5
10 µg/m³
PM10
11 µg/m³
Ozon
60 µg/m³
Nitrogen dioksida
9 µg/m³
Sulfur dioksida
3 µg/m³
Karbon monoksida
162 µg/m³
European AQI (separate scale)
2