Baseline of the butyltin distribution in surface sediments (0-20 cm) of the Elbe estuary (Germany, 2011).
Mar Pollut Bull
; 77(1-2): 418-23, 2013 Dec 15.
Article
em En
| MEDLINE
| ID: mdl-24139647
ABSTRACT
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).
Palavras-chave
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Compostos Orgânicos de Estanho
/
Poluentes Químicos da Água
/
Monitoramento Ambiental
/
Estuários
/
Sedimentos Geológicos
País/Região como assunto:
Europa
Idioma:
En
Ano de publicação:
2013
Tipo de documento:
Article