Air quality in Krefeld
16
Good
Air Quality Index
Air quality is satisfactory and poses little or no health risk.
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Pollutants
PM2.5
7.3 µg/m³
PM10
11.4 µg/m³
NO₂
20.3 µg/m³
O₃
39 µg/m³
SO₂
10.8 µg/m³
CO
322 µg/m³
Pollen
Grass
23
Medium
Mugwort
24
Medium