Free State, Afrika Selatan
Harrismith · Kualitas udara
Selasa, 27 Okt · Africa/Johannesburg
Harrismith air quality
US air quality index
40Baik
US EPA scale
- Baik0–50Current category
- Sedang51–100
- Tidak sehat bagi kelompok sensitif101–150
- Tidak sehat151–200
- Sangat tidak sehat201–300
- 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 scaleSemua polutan
- PM1
- 6 µg/m³
- PM2.5
- 7 µg/m³
- PM10
- 7 µg/m³
- Ozon
- 56 µg/m³
- Nitrogen dioksida
- 3 µg/m³
- Sulfur dioksida
- 1 µg/m³
- Karbon monoksida
- 153,7 µg/m³
- European AQI (separate scale)
- 2