Air quality in Sion

11
Good

Air Quality Index

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

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Pollutants

PM2.5 3.8 µg/m³
PM10 3.8 µg/m³
NO₂ 3.5 µg/m³
O₃ 27 µg/m³
SO₂ 1.8 µg/m³
CO 105 µg/m³

Air Quality Index

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