Air quality in Porto
44
Moderate
Air Quality Index
Sensitive groups may experience health effects. The general public is not likely to be affected.
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Pollutants
PM2.5
8 µg/m³
PM10
18.1 µg/m³
NO₂
0.2 µg/m³
O₃
106 µg/m³
SO₂
0.2 µg/m³
CO
125 µg/m³
Pollen
Birch
2
Low
Grass
14
Medium
Olive
5
Low