Simulated conservative tracer as a proxy for S-metolachlor concentration predictions compared to POCIS measurements in Arcachon Bay
BUDZINSKI, Hélène
Laboratoire de Physico -& Toxico Chimie des systèmes naturels [LPTC]
Environnements et Paléoenvironnements OCéaniques [EPOC]
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Laboratoire de Physico -& Toxico Chimie des systèmes naturels [LPTC]
Environnements et Paléoenvironnements OCéaniques [EPOC]
BUDZINSKI, Hélène
Laboratoire de Physico -& Toxico Chimie des systèmes naturels [LPTC]
Environnements et Paléoenvironnements OCéaniques [EPOC]
< Leer menos
Laboratoire de Physico -& Toxico Chimie des systèmes naturels [LPTC]
Environnements et Paléoenvironnements OCéaniques [EPOC]
Idioma
EN
Article de revue
Este ítem está publicado en
Marine Pollution Bulletin. 2018-08, vol. 133, p. 423 - 427
Resumen en inglés
The work presented here aims at comparing monitoring of S-metolachlor, the major pesticide in use in the Arcachon Bay (South West of France, transitional coastal area), by chemical analysis (monthly passive sampling) and ...Leer más >
The work presented here aims at comparing monitoring of S-metolachlor, the major pesticide in use in the Arcachon Bay (South West of France, transitional coastal area), by chemical analysis (monthly passive sampling) and contaminant dissipation modeling from sources (Mars-2D model). The global strategy consisted in i) identifying the major sources of S-metolachlor to the Bay, ii) monitoring these sources for 12 months, and iii) comparing modeled data in the Bay based on measured inputs, to chemical measurements made inside the Bay along with the 12-month source monitoring. Results first showed that the major S-metolachlor surface inputs to the Arcachon Bay are mainly from one single source. Modeled and measured data were in good agreement at 5 sites in the Bay, both in terms of concentration range and seasonal trends. Modeling thus offers a cost-effective solution for monitoring contaminants in transitional waters, overcoming in addition the technical limitations for measuring pg L −1 or lower levels in coastal waters. However, we highlighted that secondary sources may affect accuracy at local level.< Leer menos
Palabras clave en inglés
POCIS
Passive sampling
monitoring
coastal area
contaminant
Mars-2D
pesticides
Centros de investigación