Table 2.
Summary measures of air pollution concentrations for recorded births (1994–2008) in 1×1 km grid square for both residence only and residence and workplace exposure combined.
| N | Mean | SD | Min | Max | Range |
Pearson's correlation coefficients |
||
|---|---|---|---|---|---|---|---|---|
| PM10(µg/m3) | SO2(µg/m3) | |||||||
| Term births only (Residential) | ||||||||
| PM10 (µg/m³) | 21843 | 13.30 | 2.54 | 6.12 | 23.90 | 17.77 | 1.00 | |
| SO2 (µg/m³) | 21843 | 5.41 | 5.12 | 0.00 | 37.26 | 37.26 | 0.58 | 1.00 |
| NO2 (µg/m³) | 21843 | 17.47 | 10.0 | 0.73 | 57.95 | 57.22 | 0.81 | 0.39 |
| All births (Residential) | ||||||||
| PM10 (µg/m³) | 23086 | 13.30 | 2.54 | 6.12 | 23.90 | 17.77 | 1.00 | |
| SO2 (µg/m³) | 23086 | 5.41 | 5.11 | 0.00 | 37.26 | 37.26 | 0.59 | 1.00 |
| NO2 (µg/m³) | 23086 | 17.48 | 9.89 | 0.73 | 57.95 | 57.22 | 0.81 | 0.40 |
| Term births only (Residential and workplace) | ||||||||
| PM10 (µg/m³) | 21839 | 13.37 | 2.53 | 6.17 | 23.17 | 17 | 1.00 | |
| SO2 (µg/m³) | 21839 | 5.44 | 5.05 | 0 | 35.73 | 35.73 | 0.58 | 1.00 |
| NO2 (µg/m³) | 21839 | 17.80 | 9.87 | 0.73 | 56.81 | 56.08 | 0.81 | 0.39 |
| All births (Residential and workplace) | ||||||||
| PM10 (µg/m³) | 23079 | 13.37 | 2.52 | 6.17 | 23.90 | 17.73 | 1.00 | |
| SO2 (µg/m³) | 23079 | 5.44 | 5.04 | 0 | 37.26 | 37.26 | 0.59 | 1.00 |
| NO2 (µg/m³) | 23079 | 17.80 | 9.85 | 0.73 | 57.95 | 57.22 | 0.81 | 0.39 |