Salinity origin in the coastal aquifer of the Southern Venice lowland.

Autor: Alessandrino L; DiSTABiF - Department of Environmental, Biological and Pharmaceutical Sciences and Technologies, Campania University 'Luigi Vanvitelli', Via Vivaldi 43, 81100 Caserta, Italy., Gaiolini M; SIMAU - Department of Materials, Environmental Sciences and Urban Planning, Marche Polytechnic University, Via Brecce Bianche 12, 60131 Ancona, Italy., Cellone FA; IGG - Institute of Geosciences and Earth Resources, National Research Council, Via G. Gradenigo 6, 35131 Padova, Italy; Centro de Investigaciones del Medio Ambiente, Consejo Nacional de Investigaciones Científicas y Técnicas, Universidad Nacional de La Plata (CIM-UNLP-CONICET), Buenos Aires, Argentina., Colombani N; SIMAU - Department of Materials, Environmental Sciences and Urban Planning, Marche Polytechnic University, Via Brecce Bianche 12, 60131 Ancona, Italy. Electronic address: n.colombani@univpm.it., Mastrocicco M; DiSTABiF - Department of Environmental, Biological and Pharmaceutical Sciences and Technologies, Campania University 'Luigi Vanvitelli', Via Vivaldi 43, 81100 Caserta, Italy., Cosma M; IGG - Institute of Geosciences and Earth Resources, National Research Council, Via G. Gradenigo 6, 35131 Padova, Italy., Da Lio C; IGG - Institute of Geosciences and Earth Resources, National Research Council, Via G. Gradenigo 6, 35131 Padova, Italy., Donnici S; IGG - Institute of Geosciences and Earth Resources, National Research Council, Via G. Gradenigo 6, 35131 Padova, Italy., Tosi L; IGG - Institute of Geosciences and Earth Resources, National Research Council, Via G. Gradenigo 6, 35131 Padova, Italy.
Jazyk: angličtina
Zdroj: The Science of the total environment [Sci Total Environ] 2023 Dec 20; Vol. 905, pp. 167058. Date of Electronic Publication: 2023 Sep 13.
DOI: 10.1016/j.scitotenv.2023.167058
Abstrakt: Groundwater salinization can be natural and anthropogenic in origin, although it often results from a combination of both, especially in low-lying coastal regions that are hydraulically controlled. This study proposes a method to assess the origin of salinity using environmental tracers in porewater, like Cl - and Br - , combined with depositional facies associations detected in sediment cores. Such integrated approach was tested in a target area south of the Venice Lagoon (Italy), where groundwater salinization is triggered by multiple mechanisms due to the complexity of the hydro-geomorphological environment. Batch tests were performed on sediment core samples from boreholes to quantify major anions and total inorganic N. Cl - and Br - porewater concentrations coupled with sedimentary facies association provided insights into the origin of groundwater salinity from a variety of sources, including past and present seawater intrusion, agricultural leaching, and evaporites. The strengths and limitations of the integrated approach are discussed to provide a pathway for improving water resource management and planning measures to prevent groundwater salinization in coastal areas.
Competing Interests: Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.
(Copyright © 2023 The Authors. Published by Elsevier B.V. All rights reserved.)
Databáze: MEDLINE
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