Air quality in Oporto

18
Good

Air Quality Index

Air quality is satisfactory and poses little or no health risk.

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Pollutants

PM2.5 4.6 µg/m³
PM10 6.9 µg/m³
NO₂ 3.7 µg/m³
O₃ 54.3 µg/m³
SO₂ 0.4 µg/m³
CO 126.3 µg/m³

Air Quality Index

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