Emilia-Romagna, Italia
Ravenna · Kualitas udara
Minggu, 8 Nov · Europe/Rome
Ravenna air quality
US air quality index
57Sedang
US EPA scale
- Baik0–50
- Sedang51–100Current category
- 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
- 21 µg/m³
- PM2.5
- 23 µg/m³
- PM10
- 25 µg/m³
- Ozon
- 39 µg/m³
- Nitrogen dioksida
- 15 µg/m³
- Sulfur dioksida
- 2 µg/m³
- Karbon monoksida
- 257 µg/m³
- European AQI (separate scale)
- 2