Air quality in St Helens
27
Fair
Air Quality Index
Air quality is acceptable. Extremely sensitive people may experience minor symptoms.
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Pollutants
PM2.5
4.5 µg/m³
PM10
10 µg/m³
NO₂
2.9 µg/m³
O₃
67 µg/m³
SO₂
0.6 µg/m³
CO
118 µg/m³
Pollen
Grass
22
Medium
Mugwort
19
Medium