Potentially toxic element input into Mar Menor coastal lagoon (Spain) through submarine groundwater discharge

Mar Menor, on the northern Mediterranean coast of Spain, is a coastal lagoon with a surface of 135 km2 , surrounded by agriculture fields and several towns, that support an important touristic activity. In addition, mining has been an historical activity on the region. In order to elucidate the input of metals supplied by Submarine Groundwater Discharge (SGD) to the lagoon and the spatial and temporal distribution of potentially toxic elements in this coastal ecosystem, the concentrations of dissolved metals (V, Cr, Mn, Fe, Co, Ni, Cu, Zn, As and Cd) were measured in surficial water courses (“ramblas”), groundwaters (including piezometers and boreholes) and lagoon waters. Samples were collected in two sampling campaigns (July and November, 2021), representing contrasting climatic seasons. These results were combined with the estimation of SGD fluxes to the coastal lagoon, allowing evaluating the fluxes of the studied pollutants. Occurrence of these pollutants in water from the lagoon has been previously registered, but none of those works has studied at the same time, and under a holistic point of view, all the possible aquatic pathways of dissolved metals, including the role of SGD as a conveyor of these potentially toxic elements.

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Ruiz C.R.G. Rodellas V. Rodriguez-Puig J.…. Potentially toxic element input into Mar Menor coastal lagoon (Spain) through submarine groundwater discharge. EGU General Assembly, 2023. https://doi.org/10.5194/egusphere-egu23-17530

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Retrieved: 20 Jan 2025 18:58:39
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Resource type Article
Date of creation 2024-11-05
Date of last revision 2025-01-20
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Metadata identifier e5410769-09f9-57a8-b164-bd541775cbe3
Metadata language Spanish
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High-value dataset category Earth observation and environment
ISO 19115 topic category biota
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Name of the dataset creator Ruiz, C.R.G., Rodellas, V., Rodriguez-Puig, J.,…
Name of the dataset editor EGU General Assembly
Other identifier DOI: 10.5194/egusphere-egu23-17530
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Email of the dataset creator cgreen@ola.icmyl.unam.mx
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