Baseline of the butyltin distribution in surface sediments (0-20 cm) of the Elbe estuary (Germany, 2011).

Autor: Wetzel MA; Department of Animal Ecology, German Federal Institute of Hydrology - BfG, Am Mainzer Tor 1, 56068 Koblenz, Germany; Institute for Integrated Natural Sciences, University Koblenz-Landau, Universitätsstrasse 1, 56070 Koblenz, Germany. Electronic address: markus.wetzel@bafg.de., Winterscheid A, Wahrendorf DS
Jazyk: angličtina
Zdroj: Marine pollution bulletin [Mar Pollut Bull] 2013 Dec 15; Vol. 77 (1-2), pp. 418-23. Date of Electronic Publication: 2013 Oct 15.
DOI: 10.1016/j.marpolbul.2013.09.021
Abstrakt: The concentrations of the butyltin (BT) species tributyltin (TBT), dibutyltin (DBT), and monobutyltin (MBT) were measured in the surface sediments (0-20 cm) at 29 sites of the Elbe estuary in 2011. TBT values ranged from 'undetectable' to 41 ng Sn g(-1) dry weight (d.w.) with the two highest values measured in the inner section of the estuary near the port of Hamburg (32 and 41 ng Sn g(-1) d.w.). TBT, DBT, and MBT showed significant decreases towards the estuarine mouth (Spearman's rho -0.660, -0.685, and -0.583, respectively, p<0.001). The degradation of TBT, assessed by the BT degradation index (BDI), showed a rising trend from the port of Hamburg towards the mouth of the estuary, though not a significant one (Spearman's correlation, p=0.066). Annual sedimentation rates did not show any significant correlations (Spearman's correlation) to BT pollution or to the butyltin degradation index (BDI).
(Copyright © 2013 Elsevier Ltd. All rights reserved.)
Databáze: MEDLINE
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