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  • Title: TBT and its metabolites in sediments: Survey at a German coastal site and the central Baltic Sea.
    Author: Abraham M, Westphal L, Hand I, Lerz A, Jeschek J, Bunke D, Leipe T, Schulz-Bull D.
    Journal: Mar Pollut Bull; 2017 Aug 15; 121(1-2):404-410. PubMed ID: 28629811.
    Abstract:
    Since the 1950s the organotin compound tributyltin (TBT) was intensively used in antifouling paints for marine vessels and it became of concern for the marine environment. Herein, we report on a study from 2015 on TBT and its metabolites monobutyltin (MBT) and dibutyltin (DBT) in sediments from the central Baltic Sea and a Baltic Sea coastal site with strong harbor activities (Warnemünde). Sublayers from a sediment core from the Arkona Basin were analyzed to investigate the long term organotin pressure for the Baltic Sea. For the central Baltic Sea total organotin (MBT+DBT+TBT) ranged from 100 to 500ng/g TOC with distinct areas of high organotin content probably due to historical inputs. For the coastal site total organotin ranged from 10,000 to 60,000ng/g TOC. MBT and DBT were the predominant organotin species detected. Overall, the data obtained indicate the progress of TBT degradation at the investigated sites.
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