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      Dataset on hydrogeochemical characteristics of spring and surface waters in the complex karst catchment area of Southern Dalmatia (Croatia) and Western Herzegovina (Bosnia and Herzegovina)

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          Abstract

          Large and complex karst catchments, like the one in Southern Dalmatia (Croatia) and Western Herzegovina (Bosnia and Herzegovina), are fragile environments requiring careful protection and sustainable water resources management. Understanding the processes that influence karst aquifer water chemistry is essential for the effective protection of water quality and quantity, ensuring sustainable resource availability and minimizing vulnerability to contamination.

          A hydrogeochemical dataset comprising over 30 groundwater (springs) and surface water samples, was collected in this cross-border catchment area from September 2013 to September 2020, accounting for seasonal variations. Parameters such as Ca 2+, Mg 2+, Na +, K +, Cl , NO 3 and SO 4 2+ were analysed using atomic absorption, spectrophotometry and ion chromatography at the Croatian Geological Survey's Hydrochemical Laboratory. Alkalinity was measured through volumetric titration and in-situ pH, electrical conductivity (EC), and temperature (T) were measured using a multi-parameter probe.

          Additionally, stable sulphur isotope 34 (δ 34S) analysis was conducted on ten samples collected during two hydrological extremes (April and October 2019) using an IRMS analyser at the Jožef Stefan Institute in Slovenia.

          These data provides a baseline assessment of the hydrogeochemistry of the area, facilitating research on isotope hydrology, particularly δ 34S studies. It could also be used in implementing measures to protect and safeguard groundwater, assess its vulnerability to contamination, and improve existing catchment recharge zones.

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          Most cited references18

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          Karst Hydrogeology and Geomorphology

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            Standard Methods for the Examination of Water and Wastewater

            (1998)
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              Use of artificial and natural tracers to assess groundwater transit-time distribution and flow systems in a high-alpine karst system (Wetterstein Mountains, Germany)

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                Author and article information

                Contributors
                @fili12881
                Journal
                Data Brief
                Data Brief
                Data in Brief
                Elsevier
                2352-3409
                26 November 2024
                December 2024
                26 November 2024
                : 57
                : 111173
                Affiliations
                [a ]Croatian Geological Survey, Department of Hydrogeology and Engineering Geology, Sachsova 2, HR-10000 Zagreb, Croatia
                [b ]University of Zagreb, Faculty of Mining, Geology and Petroleum Engineering, Pierottijeva 6, HR-10000 Zagreb, Croatia
                Author notes
                [* ]Corresponding author. mfilipovic@ 123456hgi-cgs.hr @fili12881
                Article
                S2352-3409(24)01135-1 111173
                10.1016/j.dib.2024.111173
                11665773
                39717133
                53c9b370-2a6d-488a-92f4-571fa9df9c55
                © 2024 The Author(s)

                This is an open access article under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

                History
                : 17 October 2024
                : 12 November 2024
                : 19 November 2024
                Categories
                Data Article

                isotopes,sulphur 34,evaporites,external dinarides
                isotopes, sulphur 34, evaporites, external dinarides

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