Air quality in Porto
39
Fair
Air Quality Index
Air quality is acceptable. Extremely sensitive people may experience minor symptoms.
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Pollutants
PM2.5
4.3 µg/m³
PM10
8.4 µg/m³
NO₂
3.7 µg/m³
O₃
97 µg/m³
SO₂
1 µg/m³
CO
153 µg/m³
Pollen
Grass
2
Low