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Implementation of a 3D Coupled Hydrodynamic and Contaminant Fate Model for PCDD/Fs in Thau Lagoon (France): The Importance of Atmospheric Sources of Contamination

Authors
Journal
International Journal of Environmental Research and Public Health
1660-4601
Publisher
MDPI AG
Publication Date
Volume
7
Issue
4
Identifiers
DOI: 10.3390/ijerph7041467
Keywords
  • Pcdd/F
  • Thau Lagoon
  • Pops
  • Fate Model
  • Hydrodynamic Model
Disciplines
  • Biology
  • Ecology
  • Geography

Abstract

A 3D hydrodynamic and contaminant fate model was implemented for polychlorinated dibenzo-p-dioxins and dibenzofurans (PCDD/Fs) in Thau lagoon. The hydrodynamic model was tested against temperature and salinity measurements, while the contaminant fate model was assessed against available data collected at different stations inside the lagoon. The model results allow an assessment of the spatial and temporal variability of the distribution of contaminants in the lagoon, the seasonality of loads and the role of atmospheric deposition for the input of PCDD/Fs. The outcome suggests that air is an important source of PCDD/Fs for this ecosystem, therefore the monitoring of air pollution is very appropriate for assessing the inputs of these contaminants. These results call for the development of integrated environmental protection policies.

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