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Survey of organotin compounds in rivers and coastal environments in Portugal 1999-2000

AutorDíez Salvador, Sergi; Lacorte Bruguera, Silvia; Viana, Paula; Barceló, Damià; Bayona Termens, Josep María
Palabras claveOrganotin compounds
Fecha de publicación23-mar-2005
CitaciónEnvironmental Pollution 136(3): 525-536 (2005)
ResumenIn the period from April 1999 to May 2000, organotin pollution, namely butyl and phenyltins, was investigated in coastal and continental waters (46 stations), estuarine sediments (15 stations) and mussels (Mytilus galloprovincialis) (13 stations) throughout Portugal. Sampling points were chosen in areas of specific industrial, agricultural and harbor activities. Butyltins (BTs) were the only tin species identified of which tributyltin (TBT) was found in the whole area. Concentrations of TBT in river water ranged from 3 to 30 ng L−1 (as Sn), marine sediment ranged from 4 to 12 μg kg−1 (as Sn), whereas concentrations in mussel tissue ranged from 2.5 to 490 μg kg−1 (as Sn). Given that some water samples appeared to be contaminated by higher monobutyltin (MBT) and dibutyltin (DBT) concentrations, the role of biological degradation and direct inputs from agricultural and industrial applications areas are discussed. The study compares depleted butyltin pollution in sediments and mussels of the Portuguese coastline associated with antifouling paints with previously reported levels. Inputs in river waters are more related to (i) PVC leaching and (ii) industrial sources, in some cases discharged by municipal wastewaters.
Survey data illustrate the complexities of organotin sources and cycling in coastal environments.
Descripción12 pages, 4 figures.-- PMID: 15862405 [PubMed].-- Printed version published Aug 2005.
Versión del editorhttp://dx.doi.org/10.1016/j.envpol.2004.12.011
ISSN0269-7491 (Print)
1873-6424 (Online)
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