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Northern Province, Sierra Leone

Konakridee · Kualitas udara

Kamis, 5 Nov · Africa/Freetown

Konakridee air quality

US air quality index

29

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
5 µg/m³
PM2.5
6 µg/m³
PM10
7 µg/m³
Ozon
58 µg/m³
Nitrogen dioksida
2 µg/m³
Sulfur dioksida
1 µg/m³
Karbon monoksida
217 µg/m³
European AQI (separate scale)
2