Assessment of groundwater salinity and quality in Gaza coastal aquifer, Gaza Strip, Palestine: An integrated statistical, geostatistical and hydrogeochemical approaches study

The Science of the Total Environment
Madhat Farouk Abu-AlnaeemMay Raksmey

Abstract

A comprehensive study was conducted to identify the salinization origins and the major hydrogeochemical processes controlling the salinization and deterioration of the Gaza coastal aquifer system through a combination approaches of statistical and geostatistical techniques, and detailed hydrogeochemical assessments. These analyses were applied on ten physicochemical variables for 219 wells using STATA/SE12 and Surfer softwares. Geostatistical analysis of the groundwater salinity showed that seawater intrusion along the coastline, and saltwater up-coning inland highly influenced the groundwater salinity of the study area. The hierarchical cluster analysis (HCA) technique yielded seven distinct hydrogeochemical signature clusters; (C1&C2: Eocene brackish water invasion, C3 saltwater up-coning, C4 human inputs, C5 seawater intrusion, C6 & C7 rainfall and mixing inputs). Box plot shows a wide variation of most of the ions while Chadha's plot elucidates the predominance of Na-Cl (71.6%) and Ca/Mg-Cl (25%) water types. It is found that, the highest and the lowest levels of salinization and the highest level of nitrate pollution were recorded in the northern area. This result reflects the sensitivity of this area to the human activiti...Continue Reading

Citations

Aug 23, 2019·Environmental Geochemistry and Health·Dang An TranThanh Duc Dang
Jul 2, 2020·Environmental Science and Pollution Research International·Zekang HeShengtian Yang
Jul 12, 2020·Environmental Science and Pollution Research International·Deepali MarghadePeiyue Li
Dec 15, 2020·Journal of Environmental Management·G RachidM El-Fadel
Feb 22, 2021·Environmental Science and Pollution Research International·Jie ZhangMi Lei
Dec 14, 2021·The Science of the Total Environment·E AbascalA Ortiz

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