Research Article
Marine Environmental Risk Assessment of Sungai Kilim, Langkawi, Malaysia: Heavy Metal Enrichment Factors in Sediments as Assessment Indexes
Table 5
The comparison of heavy metal concentrations in the present study with other heavy metal studies throughout Malaysia.
| No. | Area | Cd | Co | Fe | Pb | Zn | References |
| (1) | Sungai Kilim, Langkawi | 0.27 ± 0.14 | 7.69 ± 0.82 | 4.80 ± 0.42 | 5.29 ± 3.47 | 66.82 ± 4.86 | Present study | (2) | Terengganu River | 0.9 ± 1.7 | 15.1 ± 7.4 | 6.3 ± 1.3 | 44.1 ± 14.4 | 65.6 ± 34.8 | Jamil [10] | (3) | Kemaman estuary | — | 16.00 | — | — | — | Kamaruzzaman and Ong [40] | (4) | Sungai Kelantan | 1.82 ± 0.02 | — | 3.860 | 20.82 ± 0.28 | 18.67 ± 0.56 | Ahmad et al. [41] | (5) | Langkawi coastal water | — | — | — | 41.87 ± 7.3 | — | Kamaruzzaman et al. [42] | (6) | Sungai Semenyih | — | 20.95 ± 12.97 | — | 44.71 ± 22.34 | 62 ± 36.34 | Muhammad et al. [43] | (7) | Kuala Perlis | — | — | — | 25.77 | 55.73 | Yap and Pang [44] | (8) | Kuala Kedah jetty | — | — | — | 26.81 | 53.21 | Yap and Pang [44] | (9) | Kuala Muda | — | — | — | 31.92 | 33.6 | Yap and Pang [44] | (10) | Kuala Juru jetty | — | — | — | 30.20 | 317.39 | Yap and Pang [44] | (11) | Juru industrial drainage | — | — | — | 65.32 | 484.14 | Yap and Pang [44] | (12) | Earth bulk continental crust | 0.15 | 25 | 5.63 | 14 | 70 | Lide [24] |
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