Table 3.
Descriptive statistics of modelled pollution exposure for each trimester and the whole pregnancy in µg/m3 for our study sample taken from the developing human connectome project (dHCP) based in London.
| PM10 levels, μg/m3 (median, range) | |
| 1st trimester of pregnancy | 23.1 (17.1 – 37.1) |
| 2nd trimester of pregnancy | 23.2 (15.6 – 38.5) |
| 3rd trimester of pregnancy | 22.8 (11.8 – 39.5) |
| Whole pregnancy | 23.4 (18.2 – 30.5) |
| PM2.5 levels, μg/m3 (median, range) | |
| 1st trimester of pregnancy | 13.4 (9.0 – 24.2) |
| 2nd trimester of pregnancy | 13.5 (8.5 – 25.1) |
| 3rd trimester of pregnancy | 13.2 (8.9 – 22.5) |
| Whole pregnancy | 13.5 (10.1 – 18.4) |
| NO2 levels, μg/m3 (median, range) | |
| 1st trimester of pregnancy | 39.4 (23.3 – 59.0) |
| 2nd trimester of pregnancy | 39.6 (20.2 – 71.7) |
| 3rd trimester of pregnancy | 38.3 (21.9 – 62.3) |
| Whole pregnancy | 39.7 (24.73 – 58.0) |