Pooveneswary, Nagaiah and Abu Bakar, Ahmad Farid and Wei, Bong Chui and Lee, Choon Weng and Jun, Wang Ai and Amir Hassan, Meor Hakif and Mohamad Yunus, Rossita and Zakaria, Mohamad Pauzi (2020) Contamination status and ecological risk of heavy metals in surface sediment of Kelantan River and its nearshore area, Malaysia. Water Supply, 20 (1). pp. 103-117. ISSN 1606-9749, DOI https://doi.org/10.2166/ws.2019.138.
Full text not available from this repository.Abstract
A study on contamination status and ecological risk of heavy metals in surface sediment at selected sites on Kelantan River and its nearshore area was carried out. Ten samples along Kelantan River and 25 samples from the nearshore were analyzed using inductively coupled plasma optical emission spectrometry (ICP-OES) to determine heavy metal concentrations. Sediment samples were also analyzed for particle size compositions, total organic matter and pH content. The average concentrations for As, Cd, Cr, Cu, Mn, Ni, Pb, Zn were 7.38, 1.31, 17.71, 11.40, 507.15, 5.97, 22.61, 32.95 mg/kg for riverine and 14.14, 4.59, 29.79, 14.07, 389.96, 9.65, 62.21, 41.04 mg/kg for nearshore samples respectively. The potential ecological risk index showed stations Bekok, Manek Urai, and RH under considerable risk followed by station Pasir Mas under moderate risk. The pollution load index classified four nearshore sites (KW10, KW17, KW18, KW37) as polluted. The geo-accumulation index (Igeo) categorized moderate contamination for Cd and Pb. The enrichment factor (EF) along the river categorized extremely high enrichment for Cd, and significant enrichment for As, Pb and Mn while Pb and As were under very high and significant enrichment in nearshore areas. Pb, Cu, Zn, As, Ni and Cr showed significant correlations with each other.
| Item Type: | Article |
|---|---|
| Funders: | Bilateral Cooperation of Maritime Affairs of China, HC140502, China-ASEAN Maritime Cooperation Fund, Geology Department, University of Malaya, GPF017B-2018, Ministry of Higher Education, Ministry of Higher Education, Malaysia, IOES-2014E |
| Uncontrolled Keywords: | Ecological risk assessment; Heavy metal pollution; Kelantan River; Nearshore; Surface sediment |
| Subjects: | Q Science > QH Natural history |
| Divisions: | Faculty of Science > Institute of Mathematical Sciences Faculty of Science > Department of Geology |
| Depositing User: | Ms Zaharah Ramly |
| Date Deposited: | 01 Dec 2023 05:23 |
| Last Modified: | 01 Dec 2023 05:23 |
| URI: | http://eprints.um.edu.my/id/eprint/36932 |
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