Distribution, enrichment, and potential toxicity of trace metals in the surface sediments of Sundarban mangrove ecosystem, Bangladesh: a baseline study before Sundarban oil spill of December, 2014

Environmental Science and Pollution Research International
Alok KumarSwati Mohan Sappal

Abstract

The distribution, enrichment, and ecotoxicity potential of Bangladesh part of Sundarban mangrove was investigated for eight trace metals (As, Cd, Cr, Cu, Fe, Mn, Pb, and Zn) using sediment quality assessment indices. The average concentration of trace metals in the sediments exceeded the crustal abundance suggesting sources other than natural in origin. Additionally, the trace metals profile may be a reflection of socio-economic development in the vicinity of Sundarban which further attributes trace metals abundance to the anthropogenic inputs. A total of eleven surficial sediment samples were collected along a vertical transect along the freshwater-saline water gradient. The sediment samples were digested using EPA 3051 method and were analyzed on ICP-MS. Geo-accumulation index suggests moderately polluted sediment quality with respect to Ni and As and background concentrations for Al, Fe, Mn, Cu, Zn, Pb, Co, As, and Cd. Contamination factor analysis suggested low contamination by Zn, Cr, Co, and Cd, moderate by Fe, Mn, Cu, and Pb while Ni and As show considerable and high contamination, respectively. Enrichment factors for Ni, Pb, and As suggests high contamination from either biota or anthropogenic inputs besides natural enr...Continue Reading

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Citations

Oct 20, 2017·Environmental Science and Pollution Research International·Saroja K BarikSrikanta Samanta
Nov 25, 2020·Analytical Methods : Advancing Methods and Applications·Mengting JinDezheng Yang
Dec 5, 2019·Marine Pollution Bulletin·J C Fernández-CadenaR De la Iglesia
Jan 8, 2021·Environmental Science and Pollution Research International·Himanshu KaushikRajesh Kumar Ranjan
Apr 9, 2021·Environmental Geochemistry and Health·Mohammad Belal HossainAfroza Parvin
May 30, 2021·Analytica Chimica Acta·Elise RotureauMathieu Etienne

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