A comparison of sediment quality guidelines for toxicity assessment in the Sunderban wetlands (Bay of Bengal, India)

Chemosphere
Andrea BinelliK K Satpathy

Abstract

The aim of this paper was to obtain the first screening ecotoxicological risk evaluation in the Sunderban wetlands, the largest prograding delta in the estuarine phase of the River Ganges. The characterization of exposure was conducted by means of an extensive survey of several persistent organic pollutants (PAHs, PCBs, DDTs, PBDEs, HCHs, HCB) measured in seven core sediments from the Sunderban wetlands, obtaining a dataset with more than 2200 analyses. The pollutant effects were assessed by the use of three different sediment quality guidelines (SQGs) previously developed in the literature to evaluate toxicity induced in sediment-dwelling organisms. The three different approaches chosen for risk assessment of the Sunderban were the consensus SQGs obtained by TEC (threshold effect concentration), PEC (probable effect concentration) and EEC (extreme effect concentration), the threshold/probable effect level (TEL/PEL) approach and, finally, the ERL-ERM guidelines, including the m-ERM-Q (mean ERM quotient). The evaluation of the toxicity induced by a mixture of the target pollutants indicated the importance of gamma-HCH contamination in the Sunderban sediments despite the very low concentrations measured in core sediments. A diffe...Continue Reading

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Citations

Oct 27, 2010·Environmental Monitoring and Assessment·Hongbin YinChengxin Fan
Feb 27, 2013·Environmental Science and Pollution Research International·Marco ParoliniAndrea Binelli
Aug 12, 2010·Saline Systems·Suman MannaMaitree Bhattacharyya
Feb 18, 2014·Environmental Science and Pollution Research International·Marco Parolini, Andrea Binelli
Feb 4, 2014·Environmental Science and Pollution Research International·Musarrat ParweenN J Raju
Apr 20, 2013·Journal of Environmental Sciences (China)·Chunxiao ChenJiaying Ren
Dec 3, 2013·The Science of the Total Environment·Jabir Hussain SyedKevin C Jones
Jul 16, 2015·Environmental Monitoring and Assessment·Xuan ZhangHonglei Jiang
May 15, 2015·Environmental Monitoring and Assessment·Tarek O SaidIslam M Othman
Jun 10, 2014·Marine Pollution Bulletin·Rokhsareh Azimi YancheshmehMozhgan Savabieasfahani
Sep 23, 2020·Bulletin of Environmental Contamination and Toxicology·Naili WangHonglei Liu
Apr 7, 2011·Journal of Environmental Science and Health. Part A, Toxic/hazardous Substances & Environmental Engineering·Chi Y HsiehBo Y Yu
May 10, 2020·Bulletin of Environmental Contamination and Toxicology·Zhipeng WangShuzhen Zhang

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