Porto, Portugal
Massarelos · Ingancin iska
Saturday, Nov 7 · Europe/Lisbon
Massarelos air quality
US air quality index
40Mai kyau
US EPA scale
- Mai kyau0–50Current category
- Matsakaici51–100
- Mai cutarwa ga masu saurin kamuwa101–150
- Mai cutarwa ga lafiya151–200
- Mai matuƙar cutarwa ga lafiya201–300
- Mai haɗari301–500+
A higher US AQI indicates more air pollution and greater health concern. Categories and pollutant concentration units are different measures.
Understand the EPA scaleDuk abubuwan gurɓata iska
- PM1
- 8 µg/m³
- PM2.5
- 11 µg/m³
- PM10
- 13 µg/m³
- Ozon
- 31.3 µg/m³
- Diyoksayidin naytrojin
- 15 µg/m³
- Diyoksayidin sulfur
- 1 µg/m³
- Monoksayidin karbon
- 151 µg/m³
- European AQI (separate scale)
- 1