Chemical analyses of dredged spoil disposal sites at the Belgian part of the North Sea.
Chemosphere
; 156: 172-180, 2016 Aug.
Article
de En
| MEDLINE
| ID: mdl-27176939
ABSTRACT
The chemical status of five dredged spoil disposal sites in the Belgian Part of the North Sea is evaluated. A linear mixed-effect model was applied to PCB, PAH and heavy metal data from 2005 to 2014. No decrease in PCB concentrations was found, with even an increase at two disposal sites. Hg/AL ratios increased with 62% at one disposal site (BR&WS2) from 2005 to 2006 to 2013-2014. Cu and Zn concentrations increased at two disposal sites. Additional harbour sampling suggests that the latter is possibly linked to antifouling paints. Based on OSPAR environmental assessment criteria, the current chemical status of the sites suggests no chronic effect of dredged spoil disposal. However, increasing time trend data for PCB, Hg, Cu and Zn demonstrate the importance of monitoring to identify adverse trends.
Mots clés
Texte intégral:
1
Collection:
01-internacional
Base de données:
MEDLINE
Sujet principal:
Surveillance de l'environnement
/
Sédiments géologiques
/
Métaux lourds
Type d'étude:
Prognostic_studies
Pays/Région comme sujet:
Europa
Langue:
En
Journal:
Chemosphere
Année:
2016
Type de document:
Article