Assessment of heavy metals contamination in Mamut river sediments using sediment quality guidelines and geochemical indices

Mohd Harun Abdullah, and Baba Musta , and Bibi Noorarlijannah Mohammad Ali, and Chin , Yik Lin and Fera Cleophas, (2015) Assessment of heavy metals contamination in Mamut river sediments using sediment quality guidelines and geochemical indices. Water Quality Exposure and Health , 3 (1). pp. 37-49.

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Official URL: http://dx.doi.org/10.1007/s10661-014-4190-y

Abstract

This paper describes the concentration of selected heavymetals (Co, Cu, Ni, Pb, and Zn) in theMamut river sediments and evaluate the degree of contamination of the river polluted by a disused copper mine. Based on the analytical results, copper showed the highest concentration in most of the river samples. A comparison with Interim Canadian Sediment Quality Guidelines (ICSQG) and Germany Sediment Quality Guidelines (GSQG) indicated that the sediment samples in all the sampling stations, except Mamut river control site (M1), exceeded the limit established for Cu, Ni, and Pb. On the contrary, Zn concentrations were reported well below the guidelines limit (ICSQG and GSQG). Mineralogical analysis indicated that theMamut river sediments were primarily composed of quartz and accessory minerals such as chalcopyrite, pyrite, edenite, kaolinite, mica, and muscovite, reflected by the geological character of the study area. Enrichment factor (EF) and geoaccumulation index (Igeo) were calculated to evaluate the heavy metal pollution in river sediments. Igeo values indicated that all the sites were strongly polluted with the studied metals in most sampling stations, specifically those located along the Mamut main stream. The enrichment factor with value greater than 1.5 suggested that the source of heavy metals was mainly derived from anthropogenic activity such as mining. The degree of metal changes (δfold) revealed that Cu concentration in the river sediments has increased as much as 20 to 38 folds since the preliminary investigation conducted in year 2004.

Item Type:Article
Uncontrolled Keywords:Geoaccumulationindex ,Enrichment factor , River , Pollution , Heavymetal , Mineralogy
Subjects:Q Science > Q Science (General)
ID Code:10686
Deposited By:IR Admin
Deposited On:06 Nov 2015 11:47
Last Modified:06 Nov 2015 11:47

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