Porto, Portugal
Sardão · Kualitas udara
Sabtu, 31 Okt · Europe/Lisbon
Sardão air quality
US air quality index
87Sedang
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
- 19 µg/m³
- PM2.5
- 21 µg/m³
- PM10
- 23 µg/m³
- Ozon
- 17 µg/m³
- Nitrogen dioksida
- 16 µg/m³
- Sulfur dioksida
- 1 µg/m³
- Karbon monoksida
- 247 µg/m³
- European AQI (separate scale)
- 4