From: Exposure to ambient air pollution and cognitive function: an analysis of the English Longitudinal Study of Ageing cohort
Pollutant
Baseline mean ± SD (µg/m3)
England-wide respondents
NO2
25.58 ± 13.67
PM10
19.20 ± 10.57
PM2.5
12.15 ± 4.45
Ozone
46.88 ± 13.61
London-wide respondents
42.45 ± 14.69
21.21 ± 8.23
16.76 ± 5.88
26.62 ± 10.76