Distribution and assessment of heavy metal contents in surface sediments of the western Sunda Shelf.

Marine Pollution Bulletin
Hui ZhangXuefa Shi

Abstract

The heavy metal contents (Cr, Cu, Zn, Cd, Pb, Hg, and As) of 88 surface sediment samples from the western Sunda Shelf were analyzed to determine their spatial distribution patterns and contamination status. The results demonstrated that high enrichment regions of heavy metals were focused in the Kelantan, Pahang, and Ambat river estuaries, and deep water regions of the study area. These high enrichment regions were mainly controlled by riverine inputs and their hydrodynamic conditions. The enrichment factor (EF), geoaccumulation index (Igeo), and potential ecological risk index (PERI) were used to assess heavy metal accumulation. The results indicated that the study area was not significantly contaminated overall at the time of the study; however, Cd, As, and Hg were at levels corresponding to moderate contamination at many stations located in the Pahang River estuary, Kelantan River estuary, and north-eastern region of the study area, primarily because of anthropogenic activities.

References

Jun 6, 2003·Marine Pollution Bulletin·Voravit Cheevaporn, Piamsak Menasveta
Mar 31, 2006·Environmental Science & Technology·Edward R LongDonald D MacDonald
Sep 4, 2008·Journal of Environmental Sciences (China)·Ruilian YuXianglin Tu
Oct 12, 2010·Environmental Toxicology and Chemistry·G Allen Burton, Emma L Johnston
Aug 22, 2012·Marine Pollution Bulletin·Huamao YuanLiqin Duan
Nov 30, 2013·Environmental Science and Pollution Research International·Petra VukosavDario Omanović
Sep 13, 2015·Marine Pollution Bulletin·Ming LiuDejiang Fan

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