Metal concentrations in transitional and coastal waters measured by passive (Diffusive Gradients in Thin-films) and spot sampling: MONITOOL Project Dataset

The MONITOOL project (2017-2023) was carried out to describe the relationships between total dissolved and labile metal concentrations measured in spot water samples and in concurrently deployed Diffusive Gradients in Thin -films (DGTs) passive samplers, respectively. The ultimate aim was to adapt existing marine metal Environmental Quality Standards (EQS marine water ) for DGTs, enabling their use in the context of the European Directives (the Water Framework Directive (WFD) and the Marine Strategy Framework Directive (MSFD)). Time -integrated metal concentrations provided by DGTs, representing several days, are an advantage compared to conventional spot sampling, especially in highly dynamic systems, such as transitional waters. Hence, the MONITOOL project aimed to provide a robust database of dissolved and labile metal concentrations in transitional and coastal waters, based upon co -deployments of DGTs and collection of spot water samples at several sampling sites (England, France, Ireland, Italy, Northern Ireland, Portugal, Scotland and Spain), followed subsequently by DGT and water metal analysis. Samplings were carried out in 2018 and 2022, following agreed protocols developed in the framework of the project. The MONITOOL dataset includes metal concentrations from DGTs, measured with Inductively Coupled Plasma Mass Spectrometry (ICP-MS: Cd, Co, Cu, Fe, Mn, Ni, Pb, Zn) and in concurrently collected spot water samples by ICP-MS (Al, Cd, Co, Cu, Mn, Ni, Pb, Zn) and Anodic/Cathodic Stripping Voltammetry (ASV/CSV: Cd, Pb, Ni). Moreover, data on seawater physical -chemical parameters (salinity, temperature, dissolved oxygen, pH, turbidity, total suspended solids, dissolved organic carbon, and total organic carbon) is provided. This database presents the results obtained using, concurrently, different forms of sampling and analytical techniques, enabling the comparison of the results obtained by these strategies and allowing the adaptation of EQS in marine water (EQS marine water) to DGTs (EQS DGT), in the context of the WFD. Moreover, due to the large number of sampling sites, it could also be used for other types of research, such as those dealing with metal speciation or the determination of baseline levels. (c) 2024 The Authors. Published by Elsevier Inc. This is an open access article under the CC BY license ( )


Stripping voltammetry, Inductively coupled plasma mass, spectrometry, Harbour, Metal speciation, EU Water Framework Directive, monitoring, seawater, DGT

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Rodriguez Jose German, Guesdon Stephane, Amouroux Isabelle, Bersuder Philippe, Bolam Thi, Brito Pedro, Caetano Miguel, Santos Margarida M. Correia dos, Desogus Alessandro, Fones Gary R., Gonzalez Jean-Louis, Larreta Joana, Lebrun Luc, Marras Barbara, McHugh Brendan, Menet Florence, Menchaca Iratxe, Gabet Vanessa Millan, Monteiro Carlos E., Montero Natalia, Nolan Martin, Regan Fiona, Rodrigo Marta, Rosa Nuno, Schintu Marco, Schmitt Anne, Todde Debora, Warford Lee, White Blanaid, Zhang Hao (2024). Metal concentrations in transitional and coastal waters measured by passive (Diffusive Gradients in Thin-films) and spot sampling: MONITOOL Project Dataset. Data In Brief. 53. 110145 (8p.).,

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