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Hydrochemical evaluation of water resources and human impacts on an urban karst system, Jordan

Xanke, Julian; Ender, Anna; Grimmeisen, Felix; Goeppert, Nadine; Goldscheider, Nico

Urban karst aquifers are threatened by anthropogenic activities, especially in semiarid developing countries. Recent water-sampling campaigns assessed the extent of groundwater-quality impairment in the Wadi Shueib in Jordan by a comprehensive hydrogeological and hydrochemical characterization of groundwater, wastewater, and imported water with its endmembers Lake Tiberias, Yarmouk River and Mukheiba wellfield. The results of a ternary mixing model with the mass ratios of Cl$^{-}$/Br$^{-}$ and Ca$^{2+}$/Mg$^{2+}$ indicate that Lake Tiberias and Yarmouk River provide most of the imported water at the time of sampling in 2017 and Mukheiba wellfield provided minor amounts. The similarity in seasonal variations of Br$^{-}$ concentrations in the springs and the imported water revealed that imported water has generally a greater impact on groundwater than wastewater. However, the Br$^{-}$ concentrations also showed that the spatial wastewater impact is more visible towards urbanized areas due to increased infiltration of pollutants. The analysis of historical data series demonstrated the long-term urban impact on groundwater by an electrical conductivity increase over several decades, particularly since the mid-1990s, which is related to a doubling of Jordan’s population since that time and the associated urban growth. ... mehr

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Verlagsausgabe §
DOI: 10.5445/IR/1000120072
Veröffentlicht am 01.07.2020
DOI: 10.1007/s10040-020-02174-2
Zitationen: 1
Web of Science
Zitationen: 1
Zitationen: 1
Cover der Publikation
Zugehörige Institution(en) am KIT Institut für Angewandte Geowissenschaften (AGW)
KIT-Zentrum Klima und Umwelt (ZKU)
Publikationstyp Zeitschriftenaufsatz
Publikationsjahr 2020
Sprache Englisch
Identifikator ISSN: 1431-2174, 1435-0157
KITopen-ID: 1000120072
Erschienen in Hydrogeology journal
Verlag Springer
Band 28
Seiten 2173–2186
Vorab online veröffentlicht am 05.06.2020
Nachgewiesen in Dimensions
Web of Science
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