North Carolina, Amerika Serikat
Chapel Hill · Kualitas udara
Rabu, 11 Nov · America/New York
Chapel Hill air quality
US air quality index
47Baik
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
- 11 µg/m³
- PM2.5
- 13,1 µg/m³
- PM10
- 11 µg/m³
- Ozon
- 6,1 µg/m³
- Nitrogen dioksida
- 11 µg/m³
- Sulfur dioksida
- 1 µg/m³
- Karbon monoksida
- 243 µg/m³
- European AQI (separate scale)
- 2