Determination of the spatial correlation characteristics for selected groundwater pollutants using the geographically weighted regression model: A case study in Weinan, Northwest China

Li, Fan; Wu, Jianhua; Xu, Fei; Yang, Yongqiang; Du, Qianqian

doi:10.1080/10807039.2022.2124400

Cited by 16 publications

(2 citation statements)

References 67 publications

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“…Rapid population growth and urbanization, industrialization, irrigation use and inability of existing water infrastructure has led to this increased groundwater development (Xu et al, 2022;Nsabimana & Li, 2023). The demand for safe water has put a lot of stress on the available groundwater resource resulting in over exploitation in most areas and thus putting the quality at risk of contamination (Li et al, 2023;). An understanding of the hydrogeological and hydrogeochemical properties of an aquifer is important in groundwater evaluation and management (Ren et al, 2021).…”

Section: Introductionmentioning

confidence: 99%

Groundwater geochemistry and hydrochemical processes in the Egbako aquifer, Northern Bida Basin, Nigeria

Aweda,

Jatau,

Goki

2023

RBRH

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Thirty-five groundwater samples from the aquifer were collected and analyzed for major cations and anions to understand the groundwater chemistry and hydrochemical processes in the Egbako aquifer. Laboratory studies identified the major ions while the results were analyzed using different graphical methods and ionic plots. The abundance of the major cations and anions are Ca2+>K+>Na+>Mg2+ and HCO3->NO3->Cl->SO42- respectively. The dominant hydrochemical facies are calcium-bicarbonate (Ca-HCO3), sodium-bicarbonate (Na-HCO3) and mixed calcium-sodium bicarbonate (Ca-Na-HCO3) water types. Interpretation of bivariate and scatter plots indicate silicate weathering, simple dissolution and ion exchange as the dominant processes in the aquifer. Saturation indices reveals evaporites (halite, gypsum and anhydrite) undersaturation, supersaturation in most samples with respect to silicates (quartz and kaolinite) and few samples for carbonate (calcite, aragonite, dolomite). Assessment of the water quality indicate that they are chemically suitable for human consumption except in the agricultural fields of southwestern areas where high nitrate concentration is present.

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Section: Introductionmentioning

confidence: 99%

Groundwater geochemistry and hydrochemical processes in the Egbako aquifer, Northern Bida Basin, Nigeria

Aweda,

Jatau,

Goki

2023

RBRH

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“…Due to the rapid development of society, the problem of water pollution is becoming increasingly serious . The increase in anthropogenic sources of pollution has greatly degraded water quality, for example, the discharge of industrial sewage and wastewater into rivers, the in ltration of runoff from agricultural irrigation, changes in land use and the impact of groundwater over-exploitation on the exchange of water (Sinha et a., 2019; Angello et al, 2020;Li et al, 2022). Research on water quality can provide scienti c information for the sustainable use of water resources in economic development.…”

Section: Introductionmentioning

confidence: 99%

Hydrochemical characteristics, water quality assessment and driving forces of coal base in Shanxi Province, China

Yan

Zhao

et al. 2022

Preprint

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Explore the hydrochemical characteristics of surface water (SW) and groundwater (GW) under coal mining activities and controlling factors is essential to ensure water security. This research concentrates on the Changhe River Basin (CRB). Water samples were collected from 27 sites within the CRB in May, July and December 2022. A qualitative analysis of hydrochemical characteristics and major ion sources was conducted based on Piper plots, Gibbs plots, Pearson correlation analysis and ion ratio methods. The PCA ~ RSR model was used to assess the current status of SW and GW quality in the CRB. We found that the hydrochemical type of SW and GW is HCO3- Ca, with HCO3− accounting for 62.2% ~ 87.9% of the total anions and Ca2+ accounting for 27.4% ~ 31.3% of the total cations. Rock weathering is the main factor affecting the hydrochemical of CRB. SW is affected by the weathering and dissolution of both silicate and carbonate rocks, while GW is mainly affected by the weathering and dissolution of silicate. The cation exchange also has influence on GW. The cations in the water are mainly derived from rock weathering dissolution and exchange reactions, while the SO42− in anions is mainly imported from outside. The results of the water quality assessment showed that water quality in the midstream of the study area is poor and coal mining has seriously affected water safety issues. The study reveals the impact of coal mining on hydrochemical. It provides a scientific basis for the protection and management of water resources under coal mining activities in arid and semi-arid regions.

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Hydrogeochemical characterisation and geospatial analysis of groundwater for drinking water quality in Ludhiana district of Punjab, India

Goyal

Haritash

Singh

2023

Environ Monit Assess

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Determination of the spatial correlation characteristics for selected groundwater pollutants using the geographically weighted regression model: A case study in Weinan, Northwest China

Cited by 16 publications

References 67 publications

Groundwater geochemistry and hydrochemical processes in the Egbako aquifer, Northern Bida Basin, Nigeria

Groundwater geochemistry and hydrochemical processes in the Egbako aquifer, Northern Bida Basin, Nigeria

Hydrochemical characteristics, water quality assessment and driving forces of coal base in Shanxi Province, China

Hydrogeochemical characterisation and geospatial analysis of groundwater for drinking water quality in Ludhiana district of Punjab, India

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