PMID- 18718633 OWN - NLM STAT- MEDLINE DCOM- 20090129 LR - 20081020 IS - 1879-1298 (Electronic) IS - 0045-6535 (Linking) VI - 73 IP - 7 DP - 2008 Oct TI - A comparison of sediment quality guidelines for toxicity assessment in the Sunderban wetlands (Bay of Bengal, India). PG - 1129-37 LID - 10.1016/j.chemosphere.2008.07.019 [doi] AB - 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 different sensitivity for toxicity assessment due to quality guidelines was obtained, as the consensus SQGs based on TEC were less conservative and protective than the TEL and ERL approaches, while the use of m-ERM-Q seems to be the most powerful tool to predict the toxicity related to a contaminant mixture. FAU - Binelli, Andrea AU - Binelli A AD - Department of Biology, University of Milan, Via Celoria 26, 20133 Milan, Italy. andrea.binelli@unimi.it FAU - Sarkar, Santosh Kumar AU - Sarkar SK FAU - Chatterjee, Mousumi AU - Chatterjee M FAU - Riva, Consuelo AU - Riva C FAU - Parolini, Marco AU - Parolini M FAU - Bhattacharya, Bhaskar deb AU - Bhattacharya Bd FAU - Bhattacharya, Asok Kumar AU - Bhattacharya AK FAU - Satpathy, Kamala Kanta AU - Satpathy KK LA - eng PT - Comparative Study PT - Journal Article DEP - 20080820 PL - England TA - Chemosphere JT - Chemosphere JID - 0320657 RN - 0 (Soil Pollutants) RN - 0 (Water Pollutants, Chemical) SB - IM MH - Analysis of Variance MH - Geography MH - Geologic Sediments/*analysis/chemistry MH - Guidelines as Topic MH - India MH - Soil Pollutants/*chemistry/toxicity MH - Water Pollutants, Chemical/analysis MH - *Wetlands EDAT- 2008/08/23 09:00 MHDA- 2009/01/30 09:00 CRDT- 2008/08/23 09:00 PHST- 2008/02/11 00:00 [received] PHST- 2008/07/02 00:00 [revised] PHST- 2008/07/09 00:00 [accepted] PHST- 2008/08/23 09:00 [pubmed] PHST- 2009/01/30 09:00 [medline] PHST- 2008/08/23 09:00 [entrez] AID - S0045-6535(08)00904-1 [pii] AID - 10.1016/j.chemosphere.2008.07.019 [doi] PST - ppublish SO - Chemosphere. 2008 Oct;73(7):1129-37. doi: 10.1016/j.chemosphere.2008.07.019. Epub 2008 Aug 20.