Malmö NOx | Region outside Malmö NOx | ||||||||
---|---|---|---|---|---|---|---|---|---|
n | Mean | SD | Median | n | Mean | SD | Median | ||
Heavy traffic | No | 1507 | 18.0 | 3.1 | 17.4 | 4502 | 10.2 | 3.5 | 9.6 |
Yes | 1772 | 19.6 | 3.2 | 19.6 | 1495 | 12.1 | 4.5 | 11.4 | |
Heaviest road within <100 m | no heavy road | 488 | 17.6 | 3.4 | 17.2 | 3267 | 10.1 | 3.4 | 9.6 |
<2 cars/min | 855 | 18.0 | 2.9 | 17.8 | 1380 | 9.8 | 4.3 | 8.1 | |
2–5 cars/min | 746 | 18.9 | 3.3 | 19.4 | 1074 | 12.6 | 3.8 | 11.5 | |
6–10 cars/min | 627 | 18.1 | 2.8 | 17.4 | 259 | 13.8 | 2.3 | 14.03 | |
>10 cars/min | 561 | 21.9 | 2.0 | 22.0 | 17 | 19.2 | 4.4 | 21.6 | |
NOx (μg/m3) | 0–8 | 13 | 6.8 | 1.3 | 6.8 | 1824 | 6.7 | 1.1 | 6.8 |
8–11 | 46 | 10.4 | 0.8 | 9.6 | 1792 | 9.9 | 0.8 | 10.0 | |
11–14 | 562 | 13.5 | 0.7 | 13.7 | 1268 | 12.8 | 1.0 | 12.7 | |
14–19 | 1325 | 16.7 | 1.3 | 15.9 | 510 | 15.7 | 1.2 | 15.3 | |
>19 | 1698 | 21.7 | 1.3 | 21.5 | 127 | 21.9 | 3.8 | 21.2 | |
Total | 3644 | 18.4 | 3.6 | 18.5 | 5521 | 10.31 | 3.6 | 10.04 |