Baseline of butyltin contamination in sediments of Sundarban mangrove wetland and adjacent coastal regions, India
Antizar-Ladislao, B. and Sarkar, S. K. and Anderson, P. and Peshkur, T. and Bhattacharya, B. D. and Chatterjee, M. and Satpathy, K. K. (2011) Baseline of butyltin contamination in sediments of Sundarban mangrove wetland and adjacent coastal regions, India. Ecotoxicology, 20 (8). pp. 1975-1983. ISSN 0963-9292 (https://doi.org/10.1007/s10646-011-0739-5)
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The study reports the first assessment for the quantification and speciation of butyltins (BTs) in surface marine sediment samples (0-5 cm) from intertidal mudflats of Sundarban mangrove wetland along with the Hugli (Ganges) river basin, eastern coastal part of India. Concentrations of tributyltin (TBT), dibutyltin (DBT) and monobutyltin (MBT) were monitored at 16 stations and present at all study areas, in concentrations in sediments up to 84.2, 26.4 and 48.0 ng g(-1) of TBT, DBT and MBT, respectively. Significant correlations were obtained between MBT and DBT (r = 0.62, p = 0.01) and DBT and TBT (r = 0.54, p = 0.03). Calculated BT degradation index (BDI) values indicated recent contamination of BTs at 8 stations, and suggested either no degradation of TBT or very recent degradation at a 4 further stations. Additionally, BDI values also indicated no recent inputs of BTs in 4 stations (only MBT present in one of these stations). High concentrations of BTs, particularly TBT, have the potential to induce ecotoxicological impacts based on levels specified in Australian Sediment Quality Guidelines (SQGs). This study indicated that the majority of the analyzed stations were in the highest range of priority, due to high TBT concentrations.
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Item type: Article ID code: 41720 Dates: DateEventNovember 2011PublishedSubjects: Technology > Engineering (General). Civil engineering (General) Department: Faculty of Engineering Depositing user: Pure Administrator Date deposited: 24 Oct 2012 16:00 Last modified: 11 Nov 2024 10:15 Related URLs: URI: https://strathprints.strath.ac.uk/id/eprint/41720