Hydrogeochemical processes on inland aquifer systems: A combined multivariate statistical technique and isotopic approach

Dhaoui, Oussama; Antunes, Imhr; Boente, Carlos; Agoubi, Belgaçem; Kharroubi, Adel

doi:10.1016/j.gsd.2022.100887

Cited by 13 publications

(7 citation statements)

References 86 publications

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“…The current study employed the multivariate statistical approach to accomplish its main objective. In recent times, several studies have employed these methodologies to evaluate the hydrogeochemical characteristics of groundwater quality [ [ 19 , [77] , [78] , [79] , [80] ]]. Descriptive statistics were used to summarize the groundwater data, including mean, median, minimum, and maximum values for the water quality indicators under study.…”

Section: Methodsmentioning

confidence: 99%

“…industrial effluents, pesticides, and fertilizers from agriculture production within the aquifer area) [ 17 , 18 ]. Moreover, the hydro-geochemical properties of groundwater are the major controlling factors for groundwater quality [ 19 , 20 ]. In this regard, most straightforward approach is to compare the groundwater quality indicators to their guideline levels [ 21 , 22 ].…”

Section: Introductionmentioning

confidence: 99%

“…However, several studies have stated that the excessive abstraction of groundwater resources from the semi-confined and quaternary-alluvial/deltaic aquifers have created a water stress situation [ 44 ]. Furthermore, with the recent rapid urbanization and industrialization in Bangladesh, the groundwater quality is degrading drastically [ 19 , 45 ]. Therefore, groundwater resources of Bangladesh are in desperate need of frequent monitoring in order to keep the quality of water useable for human.…”

Section: Introductionmentioning

confidence: 99%

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Assessment of hydrogeochemistry in groundwater using water quality index model and indices approaches

Uddin,

Diganta,

Sajib

et al. 2023

Heliyon

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Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Assessment of hydrogeochemistry in groundwater using water quality index model and indices approaches

Uddin,

Diganta,

Sajib

et al. 2023

Heliyon

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“…It is necessary to clearly understand the major ions in groundwater, to further understand the interaction and mechanism of groundwater pollution. Hydrogeochemical facies can not only be used to evaluate the quality of groundwater but also provide information for distinguishing different regions of anions and cations in groundwater [5][6][7].…”

Section: Introductionmentioning

confidence: 99%

Hydrogeochemical Behavior of Shallow Groundwater around Hancheng Mining Area, Guanzhong Basin, China

Kou,

Zhao,

Duan

et al. 2024

Water

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A total of 18 samples of shallow groundwater around the Hancheng mining area in the Guanzhong Basin were collected from 1–4 May 2018. According to the analysis of hydrochemical data, the Gibbs semi-logarithmic diagram and Piper diagram were used to research the hydrogeochemical behavior of shallow groundwater around the Hancheng mining area in the Guanzhong Basin. The results of the groundwater hydrochemical analyses shown on the Gibbs and Piper plots are as follows: The chemical composition analysis showed that the main cation components were Mg2+, Ca2+, Na+, and K+, the anion components were HCO3−, Cl−, and SO42−. A measure of 89% of the groundwater samples in this area were freshwater, the HCO3− were mainly dolomite, calcite, and gypsum dissolved precipitation resulted. Na+ and Cl− came from the dissolution of halite. Most of the groundwater was of the SO4·Cl-Ca·Mg type, accounting for 61.1%. The main ion chemistry of the shallow groundwater in this area is controlled by rock weathering, and pyrite oxidation is a significant factor affecting the SO42− concentration. These research results will help analyze the formation mechanism of chemical components and provide some basic data for the evolution of mine water in this area in the future.

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“…The comprehensive assessment of groundwater quality requires studying the effect of these factors, and statistical methods are a powerful tool to perform this. Application of multivariate statistical methods for groundwater quality evaluation and identification of the natural and artificial sources of groundwater pollution is widely reported in the literature, For example: 20,[25][26][27][28][29] . The methods mentioned above may indicate the amount of contamination in groundwater; however, they cannot reflect any possible risks that the contaminants pose to human health.…”

Section: Introductionmentioning

confidence: 99%

Multi-criterion approach for assessment of hydrochemical characteristics and human health risk of groundwater in Khartoum State, Sudan

Mohammed

Eltijani

Szabó

et al. 2023

Preprint

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Recently, groundwater has been recognized as one of the primary sources of water supply in Sudan. However, groundwater quality continues to deteriorate due to natural and human-induced activities. This research employed groundwater quality index (GWQI), multivariate statistical methods and human health risk assessment to investigate the suitability of groundwater for domestic uses in northern Khartoum state, Sudan. The groundwater samples were analyzed for eleven physiochemical parameters, including pH, EC, TDS, TH, Cl-, SO4-2, NO3-, Ca+2, Mg+2, Na+, HCO3- and the primary investigation indicated the deviation of these parameters from World Health Organization (WHO) standards. The hydrochemical analysis revealed different groundwater facies with the dominance of Ca-Mg-HCO3 water type. Consequently, the groundwater samples were classified, based on GWQI, into three categories as 76.4 % of the samples fall in the excellent water class, 17.6 % are projected in the good water class, and 5.9 % of groundwater samples are considered unsuitable for human consumption. The multivariate statistical methods, including Pearson's correlation analysis, hierarchical cluster analysis (HCA), and principal component analyses (PCA), were applied to determine groundwater quality data's structure and the primary factors influencing groundwater quality. These techniques revealed that groundwater in the study area is mainly controlled by rock-water interaction and agricultural practice. Additionally, they were used to categorize groundwater samples based on their chemical content. As a result, three types of groundwater were identified low, medium, and highly mineralized. In the final stage, the non-carcinogenic human health risk was assessed based on the concentration of NO3- and the obtained hazard quotient for children indicated that 64.7 % of groundwater samples are beyond the permissible limit (1<) and the use of these samples may result in health consequences. As a result, remedial measures are suggested for the sustainable use of groundwater.

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Hydrogeochemical processes on inland aquifer systems: A combined multivariate statistical technique and isotopic approach

Cited by 13 publications

References 86 publications

Assessment of hydrogeochemistry in groundwater using water quality index model and indices approaches

Assessment of hydrogeochemistry in groundwater using water quality index model and indices approaches

Hydrogeochemical Behavior of Shallow Groundwater around Hancheng Mining Area, Guanzhong Basin, China

Multi-criterion approach for assessment of hydrochemical characteristics and human health risk of groundwater in Khartoum State, Sudan

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