Table 1 Differences in soil heavy metal contents in different urbanization areas.

From: Effects of urbanization on soil heavy metal accumulation and improvement using Glomalin-related soil protein

Heavy metal (mg·kg−1)

Urbanization

Mean (SE)

V

Low

82.12 (5.51) a

Medium

83.07 (6.60) a

Heavy

88.35 (8.57) a

Cr

Low

51.01 (3.43) b

Medium

63.04 (4.05) b

Heavy

84.38 (3.68) a

Co

Low

6.60 (0.49) a

Medium

6.59 (0.73) a

Heavy

7.58 (0.83) a

Ni

Low

14.83 (1.05) a

Medium

15.28 (1.41) a

Heavy

17.31 (1.83) a

Cu

Low

17.20 (1.38) a

Medium

18.98 (1.88) a

Heavy

20.03 (2.19) a

Zn

Low

72.27 (17.71) a

Medium

50.04 (4.32) a

Heavy

55.66 (6.41) a

As

Low

91.01 (26.11) a

Medium

85.91 (28.97) a

Heavy

39.63 (19.56) a

Cd

Low

0.35 (0.02) b

Medium

0.36 (0.01) b

Heavy

0.46 (0.05) a

Pb

Low

33.38 (1.56) b

Medium

42.75 (3.50) a

Heavy

45.78 (3.88) a

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