Air quality in Welwyn Garden City
41
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
11.9 µg/m³
PM10
14.6 µg/m³
NO₂
26.9 µg/m³
O₃
28 µg/m³
SO₂
3.6 µg/m³
CO
150 µg/m³