seanoe:107912 GROUHEL Anne IFREMER, Chemical Contamination of Marine Ecosystems, F44311 Nantes, France Anne.Grouhel@ifremer.fr 2026-01-05 ISO 19115:2003/19139 1.0 ROCCHSED 2022 cores dataset : contaminants (metals, PAH, PCB) concentrations measured in dated sediment cores from the bay of Biscaye (France) 2025-07-22 2026-01-05 Tronczynski Jacek, Ferreira Araujo Daniel, Briant Nicolas, Castro Jimenez Javier, Schmidt Sabine, Marchand Philippe, Grivaud Alicia, Venisseau Anaïs, Grouhel Anne (2025). ROCCHSED 2022 cores dataset : contaminants (metals, PAH, PCB) concentrations measured in dated sediment cores from the bay of Biscaye (France). SEANOE. https://doi.org/10.17882/107912 ROCCH, the French Chemical Contaminant Monitoring Network, regularly provides data for assessing the chemical quality of French coastal waters. Concentrations of trace metals and organic compounds are measured in integrative matrices (bivalves and sediments). Surface sediment samples are collected from 200 to 250 monitoring stations in the English Channel, the Bay of Biscay and Mediterranean lagoons every six years. Results concerning approximately 140 historical and emerging chemical substances (metals, PAHs, PCBs, PBDEs, PFAS …) are submitted to international databases of the Regional Sea Convention (OSPAR for the North East Atlantic and the Barcelona Convention for the Mediterranean) and disseminated to public stakeholders. During the ROCCHSED campaign in spring 2022, three sediment cores, each forty to fifty centimetres long, were collected from three different sites in the Bay of Biscay. Horizons of one to two centimetres in length were dated, sieved and freeze-dried for chemical analysis. The concentrations of metals, PAHs and PCBs were determined in horizons aged from over 150 years to the present in order to define the reference concentration of natural levels and describe the temporal profile of contamination. <p>Financial support for the 2022 ROCCHSED sampling campaign was provided by the Adour-Garonne and Loire-Bretagne Water Agencies. The authors are grateful to the V/O Thalia crew for their help with the sampling. The authors also thank the team from the Ifremer Chemical Contaminants of Marine Ecosystems Unit who prepared the samples and performed trace metal analyses, as well as the ONIRIS-LABERCA team who performed organic contaminant analyses.</p> TRONCZYNSKI Jacek IFREMER, Chemical Contamination of Marine Ecosystems, F44311 Nantes, France FERREIRA ARAUJO Daniel IFREMER, Chemical Contamination of Marine Ecosystems, F44311 Nantes, France BRIANT Nicolas IFREMER, Chemical Contamination of Marine Ecosystems, F44311 Nantes, France CASTRO JIMENEZ Javier IFREMER, Chemical Contamination of Marine Ecosystems, F44311 Nantes, France SCHMIDT Sabine Université de Bordeaux UMR CNRS 5805 Environnements et Paléoenvironnements Océaniques et Continentaux MARCHAND Philippe ONIRIS Laboratory for the Study of Residues and Contaminants in Food GRIVAUD Alicia ONIRIS Laboratory for the Study of Residues and Contaminants in Food VENISSEAU Anaïs ONIRIS Laboratory for the Study of Residues and Contaminants in Food GROUHEL Anne IFREMER, Chemical Contamination of Marine Ecosystems, F44311 Nantes, France Anne.Grouhel@ifremer.fr SEANOE https://www.seanoe.org/data/00967/107912/illustration.jpg Launching of the Interface corer equipped with a a stainless steel tube for sediment core sampling sediment core metals bay of Biscay organic compounds datation Environment Contaminants ODATIS aggregation parameters and Essential Variable names 2025-07-29 geonetwork.thesaurus.external.theme.NVS.OD1 Environment SeaDataNet Parameter Disciplines 2025-07-29 geonetwork.thesaurus.external.parameter.NVS.P08 /Observational data/in-situ Type de jeux de donnée ODATIS 2025-12-09 geonetwork.thesaurus.local.theme.type_jeux_donnee CC-BY (Creative Commons - Attribution) <p>Data are published without any warranty, express or implied. The user assumes all risk arising from his/her use of data. Data are intended to be research-quality and include estimates of data quality and accuracy, but it is possible that these estimates or the data themselves contain errors. It is the sole responsibility of the user to assess if the data are appropriate for his/her use, and to interpret the data, data quality, and data accuracy accordingly. Authors welcome users to ask questions and report problems</p> Les carottes sédimentaires du golfe de Gascogne, références pour l'évaluation de la qualité chimique marine. Campagne ROCCHSED 2022 2025 Ifremer Tronczynski Jacek Ferreira Araujo Daniel Briant Nicolas Castro Jimenez Javier Schmidt Sabine Marchand Philippe Grivaud Alicia Venisseau Anaïs Grouhel Anne 10.13155/108810 10.17600/18002069 oceans -2.8125 -0.834961 43.333169 47.457809 2022-04 2022-05 PDF CSV https://www.seanoe.org/data/00967/107912/data/122467.pdf WWW:DOWNLOAD-1.0-link--download text ROCCHSEDcarottes2022-mode_emploiDOI - 780 KB https://www.seanoe.org/data/00967/107912/data/122470.pdf WWW:DOWNLOAD-1.0-link--download text ROCCHSEDcarottes2022-manual-use - 781 KB https://www.seanoe.org/data/00967/107912/data/122476.csv WWW:DOWNLOAD-1.0-link--download Quality controlled data QUADRIGE_20250926_60479970_Extraction ROCCHSED carottes 2022_RESULTAT - 668 KB https://surval.ifremer.fr/Donnees/Donnees-par-parametre#/map WWW:LINK https://doi.org/10.17882/107912 WWW:LINK-1.0-http--metadata-URL DOI of the product https://www.seanoe.org/data/00967/107912/ rel-canonical Seanoe Tube corer