Air quality in Hemel Hempstead
21
Fair
Air Quality Index
Air quality is acceptable. Extremely sensitive people may experience minor symptoms.
▲
Pollutants
PM2.5
9.5 µg/m³
PM10
13 µg/m³
NO₂
13.4 µg/m³
O₃
52 µg/m³
SO₂
2.7 µg/m³
CO
144 µg/m³