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首页> 外文期刊>International Journal of Oceanography >Marine Environmental Risk Assessment of Sungai Kilim, Langkawi, Malaysia: Heavy Metal Enrichment Factors in Sediments as Assessment Indexes
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Marine Environmental Risk Assessment of Sungai Kilim, Langkawi, Malaysia: Heavy Metal Enrichment Factors in Sediments as Assessment Indexes

机译：马来西亚兰卡威Sungai Kilim的海洋环境风险评估：沉积物中的重金属富集因子作为评估指标

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摘要

Concentrations of Cd, Co, Pb, and Zn in riverbed sediments from six sampling stations along the Sungai Kilim, Langkawi, Malaysia, were determined by using the Teflon Bomb Digestion. From this study, the concentrations of heavy metals in riverbed sediments were found ranging between 6.10 and 8.87 μg/g dry weight for Co, 0.03 and 0.45 μg/g dry weight for Cd, 59.8 and 74.9 μg/g dry weight for Zn, and 1.06 and 11.69 μg/g dry weight for Pb. From the observation, these areas were polluted by domestic waste, aquaculture, and tourism activities. For clarity, enrichment factor index was used to determine the level of sediment contamination in the study area. From this study, the average EF value is a bit high for Cd (2.15±1.17) followed by Zn (1.12±0.09), Pb (0.44±0.32), and lastly, Co (0.36±0.04). Based on the contamination categories, Cd was categorised as moderately enriched, while the rest of the metals studied were in deficient-to-minimally enriched by the anthropogenic sources.
机译：使用特富龙炸弹消解法确定了来自马来西亚兰卡威双溪奇林沿六个采样站的河床沉积物中Cd，Co，Pb和Zn的浓度。通过这项研究，发现河床沉积物中重金属的浓度范围为：钴的干重为6.10至8.87μg/ g，镉的干重为0.03至0.45μg/ g，锌的干重为59.8至74.9μg/ g，以及铅的干重为1.06和11.69μg/ g。从观察结果看，这些地区被生活垃圾，水产养殖和旅游活动污染。为了清楚起见，使用富集因子指数确定研究区域内沉积物污染的水平。根据这项研究，Cd的平均EF值较高（2.15±1.17），其次是Zn（1.12±0.09），Pb（0.44±0.32），最后是Co（0.36±0.04）。根据污染类别，Cd被归类为中等富集，而其余的研究金属则人为缺乏至最小富集。

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