Table 1 Concentrations of heavy metals (mean ± SD, mg kg− 1) in roadside soil samples in the study areas.

From: Assessment of anthropogenic activities impact based on metals in soil and tree leaves along roadside in Bangladesh

Studied sites

Pb

Cr

Ni

Cd

commercial

28.0 ± 11.8

21.6 ± 10.6

15.5 ± 5.3

6.3 ± 0.4

residential

29.1 ± 8.6

22.1 ± 5.3

17.3 ± 7.4

6.4 ± 0.3

industrial

31.4 ± 19.7

14.8 ± 8.9

11.3 ± 7.2

5.8 ± 3.0

rural

11.1 ± 3.1

17.1 ± 3

17.3 ± 3

6.1 ± 0.2