Groundwater Quality

Bai, Hua; Yang, John Jeongseok; Deng, Baolin

doi:10.2175/106143011x13075599870018

Cited by 4 publications

(3 citation statements)

References 44 publications

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“…These topics are clearly connected as the understanding of the groundwater system is mandatory for the assessment of water resources, their exploitation and safety (see e.g. the recent review Hua et al, 2011;Kacaroglu, 1999, for karst aquifers). Nevertheless, structural features of the host rock formations may severely complicate the identification of groundwater flow.…”

Section: Introductionmentioning

confidence: 99%

Investigation of tectonically affected groundwater systems through a multidisciplinary approach

Gambillara

Terrana

Giussani

et al. 2013

Applied Geochemistry

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This study uses a multidisciplinary approach to obtain a complete picture of the groundwater system of complex mountain aquifers. An Alpine region (the north-western area of Lake Como, Italy), characterized by two regional fault systems (The Breglia and Grona fault systems) containing different lithologies, was investigated using the multidisciplinary approach described here. The use of Principal Components Analysis (PCA), classical geochemical bivariate and trivariate diagrams of major and trace elements, and geostructural data, including remote sensing, permitted the identification of three principal groups of water. The first group, characterized by an enrichment of Ca2+ and HCO3-, flow in limestone. The second group is enriched in HCO3-, Ca2+ and Mg2+ and circulates through dolomite rocks. The third group, characterized by a decrease of Ca2+ and Mg2+, an increase of Na++K+ and a high Si/electrical conductivity (EC) ratio, flow in the basement rocks. Nevertheless, some peculiarities were evident. The matching of PCA, hydrochemical and geostructural information explains the role played by faults in water circulation. In particular, the Breglia fault permits the rise of deep water from crystalline basement and dolomite. Similarly, the Grona fault plays a role on drainage in proximity to the contact between the crystalline basement and the sedimentary cover. The springs located near the Grona fault rise into the crystalline basement but reflect a dolomite water chemistry. The multidisciplinary approach allowed understanding of the groundwater system and identification of fault systems not detectable with a geostructural survey

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Section: Introductionmentioning

confidence: 99%

Investigation of tectonically affected groundwater systems through a multidisciplinary approach

Gambillara

Terrana

Giussani

et al. 2013

Applied Geochemistry

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“…Water quality assessment is indispensable because water quality is essential to human health and the process of industrial production. The result of water quality assessment is mostly based on the established quality standards (Hua et al, 2010;Hua et al, 2011). For example, the World Health Organization (WHO) recently published the fourth edition of guidelines for drinking water to protect public health (WHO, 2011), with many countries-such as the United States, Canada, and Australiafollowing suit (U.S. EPA, 2011;Health Canada, 2012;NHMRC and NRMMC, 2011).…”

Section: Introductionmentioning

confidence: 99%

Water Quality Assessment and Hydrochemical Characteristics of Shallow Groundwater in Eastern Chancheng District, Foshan, China

Huang

Chen

Sun

2013

Water Environment Research

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Groundwater quality is the critical factor that affects human health and the quality of industrial products in Foshan City, South China. Multivariate statistical techniques, including hierarchical cluster analysis (HCA) and principal component analysis (PCA), were applied to evaluate and interpret the complex groundwater quality in eastern Chancheng district, Foshan City. During the dry and wet seasons, 60% and 11% of the total groundwater samples (respectively) are suitable for drinking purposes; other samples can be used for drinking after being treated for pH, Fe, Mn, Al, NH4, and NO3. Similarly, during the dry and wet seasons, 75% and 33% of the total groundwater samples (respectively) are suitable for industrial purposes; other samples can be used for industrial purposes after being treated for NH4 and NO3. Five principal components are extracted from PCA and used to explain 81.78% of the variance in groundwater. The indicators to groundwater quality assessment are EC, Na, Cl, Fe, Mn, NH4, pH, Eh, PO4, HCO3, and K from PCA. HCA reveals that groundwater samples in the study area can be classified into three groups: one reflecting the interaction of groundwater and sediment medium along with the role of cation exchange; another reflecting the role of anion exchange between phosphate and carbonate; and the final reflecting the reducing environment.

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“…In this water-scarce region, reuse of treated wastewater has become a common practice for irrigation purposes, especially in peri-urban areas (El Ayni et al, 2011). Conversely, good quality irrigation waters are decreasing (Trabelsi et al, 2005) because of various anthropogenic and natural reasons including natural salinization, industrial and domestic pollution (Siddique et al, 2008), poor management, overuse, and seawater intrusion that increases groundwater salinity (Hua et al, 2011).…”

Section: Introductionmentioning

confidence: 99%

A New Approach for the Assessment of Groundwater Quality and Its Suitability for Irrigation: A Case Study of the Korba Coastal Aquifer (Tunisia, Africa)

Cherif

Jrad

et al. 2012

Water Environment Research

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BSTRACT: Groundwater is the main source of water in Mediterranean, water-scarce, semiarid regions of Tunisia, Africa. In this study of the Korba coastal aquifer, 17 water wells were studied to assess their suitability for irrigation and drinking purposes. Assessment parameters include pH, salinity, specific ion toxicity, sodium adsorption ratio, nutrients, trace metals pollutants, and fecal indicators and pathogens. Results indicate that salinity of groundwater varied between 0.36 dS/m and 17.4 dS/m; in addition, its degree of restriction is defined as "none", "slight to moderate", and "severe" for 18, 23, and 59% of the studied wells, respectively. To control salts brought in by irrigation waters, the question arises as to how much water should be used to reach crop and soil requirements. To answer this question, a new approach that calculates the optimum amount of irrigation water considering the electrical conductivity of well water [ECw], field crops, and the semiarid meteorological local conditions for evapotranspiration and rainfall is developed. This is applied to the authors' case study area; barley and lettuce were selected among the commonly grown crops because they are high-and low-salinity tolerant, respectively. Leaching requirements were found to be independent of the crop selected, and depend only on the season, that is, 250 to 260 mm/month in the driest season, with a minimum of 47 mm/month though all seasons. A high bacteriological contamination appears in almost all samples. However, if disinfected and corrected for pH, all the well waters can be used for animal farming (including livestock and poultry), although only 29% could be used for human consumption. Water Environ. Res., 84, 673 (2012).

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Groundwater Quality

Cited by 4 publications

References 44 publications

Investigation of tectonically affected groundwater systems through a multidisciplinary approach

Investigation of tectonically affected groundwater systems through a multidisciplinary approach

Water Quality Assessment and Hydrochemical Characteristics of Shallow Groundwater in Eastern Chancheng District, Foshan, China

A New Approach for the Assessment of Groundwater Quality and Its Suitability for Irrigation: A Case Study of the Korba Coastal Aquifer (Tunisia, Africa)

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