Table 7 Detected trace metal concentrations in surface sediments in the study sites and in some selected world rivers
Location | Unit | Zn | As | Fe | Mg | Mn | Ni | Cr | Cu | Co | Cd | References |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
Coastal and selected estuaries, Malaysia | mg/kg | 133.45 | 5.13 | 16,415.17 | 8597.46 | 142.92 | 20.18 | 37.55 | 12.01 | 5.74 | 0.02 | This study |
Langat River, Malaysia | µg/g | – | – | 28,300.00 | – | – | 7.84 | 21.03 | – | – | – | [33] |
River Subin, Ghana | mg/kg | 49.70 | 4.82 | – | – | – | – | 55.80 | 6.66 | – | 1.16 | [59] |
River Ganga, India | µg/g | 67.76 | – | 31,988.60 | – | 372.04 | 26.70 | 69.94 | 29.75 | – | – | [51] |
River Tigris, Turkey | mg/kg | 509.84 | – | – | – | – | 284.00 | 135.81 | 1257.76 | – | – | [60] |
River Jialu, China | mg/kg | 107.58 | – | – | – | – | 42.44 | 60.80 | 39.22 | – | – | [61] |
Mangonbangon River, Philippines | mg/kg | 213.45 | – | 22,006.14 | – | 261.97 | 61.14 | 89.45 | 116.36 | 15.31 | – | [40] |
Shur River, Iran | Ppm | 522.00 | – | – | – | – | – | – | 9174.00 | – | – | [62] |
Korotoa River, Bangladesh | mg/kg | – | – | – | – | – | 95.00 | 109.00 | 76.00 | – | – | [63] |
River Gomti, India | mg/kg | 76.34 | – | – | – | – | 23.92 | 16.19 | 23.23 | – | – | [64] |
River Huaihe, China | mg/kg | – | – | 28,300.00 | – | – | 7.84 | 21.03 | – | – | – | [39] |