Table 3 Average heavy metals concentrations (mg kg−1) in sediment from Xihe River and other urban rivers of the world
As | Cd | Cr | Cu | Hg | Ni | Pb | Zn | Reference | |
|---|---|---|---|---|---|---|---|---|---|
Xihe River | 11.19 ± 21.04 | 2.88 ± 5.34 | 35.55 ± 58.96 | 45.25 ± 83.14 | 1.01 ± 2.17 | 35.06 ± 44.08 | 21.88 ± 13.68 | 205.68 ± 243.96 | This study |
Dongbao River (China) | – | 1.27 ± 0.16 | 713.00 ± 169.00 | 2602.00 ± 336.00 | – | 412.00 ± 93.00 | 69.90 ± 6.17 | 646.00 ± 30.00 | [38] |
Xixiang River (China) | – | – | 89.58 ± 43.99 | 168.82 ± 72.29 | 0.48 ± 0.25 | 69.46 ± 30.58 | 62.96 ± 24.89 | 310.33 ± 111.26 | [39] |
Gushu Chung (China) | – | – | 112 ± 55.25 | 162.33 ± 108.65 | 0.11 ± 0.15 | 68.00 ± 45.40 | 75.60 ± 23.78 | 487.33 ± 312.57 | [39] |
Shiqiao River (China) | – | 2.79 ± 1.31 | 133.00 ± 26.00 | 100.00 ± 47.00 | – | 66.00 ± 25.00 | 96.00 ± 30.00 | 327.00 ± 76.00 | [40] |
Korotoa River (Bangladesh) | 22.00 ± 16.00 | 1.00 ± 0.53 | 99.00 ± 38.00 | 71.00 ± 27.00 | – | 86.00 ± 34.00 | 54.00 ± 15.00 | – | [41] |
Nakivubo Channelized stream (Uganda) | – | 0.05 ± 0.002 | – | 6.75 ± 0.13 | – | – | 10.00 ± 0.98 | 48.25 ± 1.04 | [42] |
Karnaphuli River (India) | – | – | 96.67 ± 11.14 | 31.39 ± 8.57 | – | 42.94 ± 6.04 | 25.33 ± 1.27 | 73.93 ± 13.74 | [43] |
Akai River (Ethiopia) | – | 2.60 ± 0.20 | 18.30 ± 1.02 | 2.10 ± 0.01 | – | 14.60 ± 0.98 | 111.50 ± 1.09 | 10.30 ± 0.02 | [36] |
Strzyza Stream (Poland) | – | 0.19 ± 0.18 | 18.22 ± 19.36 | 36.63 ± 56.49 | – | 8.68 ± 7.87 | 45.89 ± 63.00 | 149.51 ± 201.38 | [44] |
Calore River (Italy) | 7.30 ± 3.60 | 0.23 ± 0.20 | 19.70 ± 9.00 | 34.30 ± 20.30 | 0.08 ± 0.19 | 24.60 ± 11.90 | 24.00 ± 21.20 | 65.90 ± 49.44 | [45] |