English   español  
Please use this identifier to cite or link to this item: http://hdl.handle.net/10261/109299
Share/Impact:
Statistics
logo share SHARE logo core CORE   Add this article to your Mendeley library MendeleyBASE

Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL
Exportar a otros formatos:

Title

Contribution of groundwater discharge to the coastal dissolved nutrients and trace metal concentrations in Majorca Island: Karstic vs detrital systems

AuthorsTovar-Sánchez, Antonio ; Basterretxea, Gotzon ; Rodellas, Valentí; Sánchez-Quiles, David; García-Orellana, Jordi; Masqué, Pere; Jordi, Antoni ; López, José María; García-Solsona, Ester
Keywordsnutrient cycling
nitrogen compound
nearshore environment
hydrogeology
groundwater
dissolved load
discharge
concentration (composition)
oxide
phosphate
trace metal
shoreline
Issue Date12-Sep-2014
PublisherAmerican Chemical Society
CitationEnvironmental Science and Technology 48(20): 11819-11827 (2014)
Abstract© 2014 American Chemical Society. Submarine groundwater discharge (SGD) and derived nutrient (NO2 -, NO3 -, NH4 +, PO4 3-, and SiO2) and trace element (Cd, Co, Cu, Fe, Mo, Ni, Pb, V and Zn) loadings to the coastal sea were systematically assessed along the coast of Majorca Island, Spain, in a general survey around the island and in three representative coves during 2010. We estimated that brackish water discharges through the shoreline are important contributors to the DIN, SiO2, Fe, and Zn budgets of the nearshore waters. Furthermore, our results showed that SGD-derived elements are conditioned by the hydrogeological formations of the aquifer and discharge type. Thus, while rapid discharges through karstic conduits are enriched in SiO2 and Zn, the large detrital aquifers of the island typically present enhanced concentrations of Fe. The estimated total annual inputs of chemicals constituents discharged by SGD to the coastal waters were as follows: DIN: 610 × 103 kg yr-1, SiO2: 1400 × 103 kg yr-1, Fe: 3.2 × 103 kg yr-1, and Zn: 2.0 × 103 kg yr-1. Our results provide evidence that SGD is a major contributor to the dissolved pool of inorganic nutrients and trace metals in the nearshore waters of Majorca.
Publisher version (URL)http://dx.doi.org/10.1021/es502958t
URIhttp://hdl.handle.net/10261/109299
DOI10.1021/es502958t
Identifiersdoi: 10.1021/es502958t
issn: 1520-5851
Appears in Collections:(ICMAN) Artículos
(IMEDEA) Artículos
Files in This Item:
File Description SizeFormat 
Tovar-EST-2014-v48-n20-p11819.pdf2,24 MBAdobe PDFThumbnail
View/Open
Show full item record
Review this work
 

Related articles:


WARNING: Items in Digital.CSIC are protected by copyright, with all rights reserved, unless otherwise indicated.