Authors: Safaa A Kadhum Mohd Yusoff Ishak Syaizwan Zahmir Zulkifli
Publish Date: 2015/11/28
Volume: 23, Issue: 7, Pages: 6312-6321
Abstract
The Bernam River is one of the most important rivers in Malaysia in that it provides water for industries and agriculture located along its banks The present study was conducted to assess the level of contamination of heavy metals Cd Ni Cr Sn and Fe in surface sediments in the Bernam River Nine surface sediment samples were collected from the lower middle and upper courses of the river The results indicated that the concentrations of the metals decreased in the order of Sn Cr Ni Fe Cd 5635 1490 53 46 and 062 μg/g1 dry weight Bernam River sediments have moderate to severe enrichment for Sn moderate for Cd and no enrichment for Cr Ni and Fe The contamination factor CF results demonstrated that Cd and Sn are responsible for the high contamination The pollution load index PLI for all the sampling sites suggests that the sampling stations were generally unpolluted with the exception of the Bagan Tepi Sungai Sabak Bernam and Tanjom Malim stations Multivariate techniques including Pearson’s correlation and hierarchical cluster analysis were used to apportion the various sources of the metals The results suggested that the sediment samples collected from the upper course of the river had lower metal concentrations while sediments in the middle and lower courses of the river had higher metal concentrations Therefore our results can be useful as a baseline data for government bodies to adopt corrective measure on the issues related to heavy metal pollution in the Bernam River in the future
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