scholarly journals Hydrogeology and Hydrogeochemistry of the Lauria Mountains Northern Sector Groundwater Resources (Basilicata, Italy)

Geofluids ◽  
2019 ◽  
Vol 2019 ◽  
pp. 1-16 ◽  
Author(s):  
Filomena Canora ◽  
Giovanna Rizzo ◽  
Simona Panariello ◽  
Francesco Sdao
Keyword(s):  
Stable Isotopes ◽  
Major Ions ◽  
Groundwater Resources ◽  
Quality Parameters ◽  
Standard Test ◽  
Chemical Compositions ◽  
Test Procedures ◽  
Groundwater Samples ◽  
Chemical Content ◽  
Northern Sector

In this study, the hydrogeological characterization of the northern sector of the Lauria Mounts carbonate hydrostructure (southern Apennines, Basilicata region) has been carried out and the hydrochemical properties of different collected groundwater samples have been characterized. Several normal springs drain the hydrostructure, some of them characterized by high annual mean discharges. Groundwater samples were collected from different springs; many parameters such as pH, electrical conductivity, and total dissolved solids have been measured, and major (cations and anions) elements and stable isotopes have been analysed following standard test procedures. Other chemical characteristics were derived from the analysed quality parameters. The results elucidate that the main hydrogeochemical processes control the chemical content and assess the quality of the groundwater within the hydrostructure. The analyses highlight that the chemical compositions of groundwater are strongly influenced by the lithology, especially limestones and dolomitic limestones; they explain and confirm the hydrogeological setting of the system. The groundwater system displays light different geochemical signatures. The processes contributing to the concentrations of major ions depend primarily on carbonate dissolution. The analysis, in all studied groundwater samples, shows that the facies groundwater type is Ca–HCO3, bicarbonate is the dominant anion, and calcium is the dominant cation with appreciable magnesium concentrations. To identify the aquifer’s recharge areas, the environmental stable isotopes oxygen and hydrogen, deuterium, and 18O were analysed. The unaltered δ18O and δD signatures for the groundwater of the major springs allows identifying the recharge area of these emergencies at elevations ranging from 900 m to 1000 m (a.s.l.), pointing out the presence of deeper flow regime feeding of these springs. The groundwater sample isotopic characteristics of D and 18O suggest that most of the groundwater is recharged directly by infiltration in a high-permeability medium.

scholarly journals Geochemical controls on the distribution of radio-trace elements in groundwater resources of Shir-Kuh granitoid aquifer, central Iran

2019 ◽  
Vol 50 (3) ◽  
pp. 974-989 ◽  
Author(s):  
Bahareh Yazdizadeh ◽  
Hadi Jafari ◽  
Rahim Bagheri
Keyword(s):  
Trace Elements ◽  
Arid Regions ◽  
Major Ions ◽  
Groundwater Resources ◽  
Principal Component ◽  
Major And Trace Elements ◽  
Mineral Weathering ◽  
Central Iran ◽  
Chemical Compositions ◽  
Calcite Dissolution

Abstract Granitic groundwaters are important resources in arid regions. However, they are not always pure due to having appreciable amounts of trace elements. The present study was conducted to investigate chemical compositions for finding controls on distribution of heavy metals and natural radioelements (U and Th) in groundwater resources of Shir-Kuh granitoid aquifer (SGA), central Iran. Thirty water samples were collected and analyzed for major and trace elements. The average values of electrical conductivity (EC) and pH are 624 μs/cm and 7.5, respectively. The dominant groundwater type is Ca-HCO3, as a result of the calcite dissolution and biotite weathering. Principal component analysis in support of mass balance studies recognizes dissolution of fracture-filling sediments and rock mineral weathering as the main factors enhancing major ions in SGA. These processes also release trace elements in decreasing order of Sr > Ba > Sn > W > Cu > U > Zn > Th. Weathering of biotite enclosing accessory minerals of monazite and zircon is introduced as the main source of radio-trace elements in SGA. Health concerns are currently related to U in drinking groundwater, as the maximum concentration (13.6 μg/L) approaches the Iranian drinking standard of 15 μg/L, in response to the oxidizing nature of the groundwater, calcite dissolution-related mobilization, and the degree of the water–rock interactions.

scholarly journals Hydrogeochemical Assessment of Groundwater Quality and its Suitability for Irrigation and Domestic Purposes in Rural Areas, North of Baiji City-Iraq

2021 ◽  
pp. 2296-2306
Author(s):  
Mahmood F. Abed ◽  
Ghazi Zarraq ◽  
Salwa H. Ahmed
Keyword(s):  
Aquatic Plants ◽  
Rural Areas ◽  
Major Ions ◽  
Quality Parameters ◽  
Ionic Exchange ◽  
Groundwater Samples ◽  
Gibbs Model ◽  
Hydrogeochemical Facies ◽  
Negative Impacts ◽  
Groundwater Wells

Background: The present study was conducted to highlight the importance of environmental pollution and its negative impacts on aquatic, plants and animals lives, especially in industrial areas. Objective: This research involved studying the hydrogeochemistry of the groundwater and assessing its quality for irrigation and domestic purposes using quality parameters.  In this study, 33 groundwater samples were collected from wells during May 2013 and were analyzed for major ions and TDS. Results: The hydrogeochemical facies of groundwater were identified using the Gibbs model and Chloro – alkaline  indices. The results of the Gibbs graph suggest that groundwater chemistry is controlled by evaporation factors. It was found that the values of chloro – alkaline  indices were positive, indicating ionic exchange between Na+ in groundwater with Ca2+ and Mg2+ in the aquifer material. Conclusion: The current study of corrosivity ratio showed that groundwater wells are unsuitable for domestic uses.

scholarly journals GIS-based assessment of groundwater quality and suitability for drinking and irrigation purposes in the outlet and central parts of Wadi El-Assiuti, Assiut Governorate, Egypt

2020 ◽  
Vol 44 (1) ◽  
Author(s):  
Hanaa A. Megahed
Keyword(s):  
Heavy Metals ◽  
Trace Elements ◽  
Major Ions ◽  
Anthropogenic Activities ◽  
Groundwater Resources ◽  
Integrated Approach ◽  
World Health ◽  
Arid Environments ◽  
Drinking And Irrigation ◽  
Groundwater Samples

Abstract Background The limited water resources in arid environments in addition to the effect of agricultural and anthropogenic activities on groundwater quantity and quality necessitate paying more attention to the quality assessment of these resources. The present studies assess the quality of groundwater resources in Wadi El-Assiuti, south Egypt, and evaluate their suitability for drinking and irrigation purposes. To achieve this goal, 159 groundwater samples were collected from the outlet and central parts of the Wadi El-Assiuti during the autumn season (October–November) of 2019 and were analyzed for major ions, trace elements and heavy metals. Results The results indicate that the TDS values range between 1972 and 6217 ppm, while the concentration of trace elements (Fe++, Mn++ and Ni+) ranges between 0.05 and 0.46, 0.11 and 0.221 and 0.01 and 0.6 ppm, respectively. These results show that all groundwater samples are clearly unacceptable and inappropriate for human drinking due to their high content of total dissolved solids, trace elements and heavy metals, particularly in the majority of samples according to World Health Organization (WHO) guidelines and the Egyptian standards (Eg. St. 2007) for drinking water quality. Spatial analysis of the TDS values in geographic information system environment indicates that the salinity is higher in the northeast and gradually decreases southward. Sodium adsorption ratio, US Salinity Laboratory classification (1954), residual sodium carbonate, soluble sodium percentage and permeability index show that most groundwater samples are suitable for irrigation purposes. Conclusions The integrated approach provided in this study highlights the spatially distributed suitability of groundwater resources in Wadi El-Assiuti and can be applied in similar basins worldwide.

scholarly journals Integration of multivariate statistics and water quality indices to evaluate groundwater quality and its suitability in middle Gangetic floodplain, Bihar

2021 ◽  
Vol 3 (4) ◽  
Author(s):  
Ajay Govind Bhatt ◽  
Anand Kumar ◽  
Priya Ranjan Trivedi
Keyword(s):  
Water Quality ◽  
Groundwater Quality ◽  
Major Ions ◽  
Anthropogenic Activities ◽  
Hierarchical Cluster ◽  
Quality Parameters ◽  
Health Concern ◽  
Water Type ◽  
Groundwater Samples ◽  
Group 2

AbstractThis study is conducted along the middle Gangetic floodplain, to investigate the hydrogeochemical characteristics and suitability of groundwater for irrigation and human consumptions. Altogether 65 groundwater samples were collected and analyzed for major ions and water quality parameters. pH of all the samples except 1 is found > 7, which suggests alkaline aquifer condition. Groundwater samples predominately belong to Ca-Mg-HCO3 water type followed by Na-HCO3, Mg-HCO3 and Mg-SO4 water types. Hierarchical cluster analysis (HCA) combines groundwater into two distinct groups, Group 1 is found as less mineralized as the average EC value is found 625.3 μS/cm, while it is found 1375 μS/cm for Group 2. The results of correlation analysis and PCA suggest influence of natural and anthropogenic activities on groundwater. PCA extracts four major PCs which describes 71.7% of total variance. PC1 indicates influence of both lithogenic and anthropogenic activities on groundwater quality. PC2 and PC3 infer natural factors, and PC4 suggests influence of anthropogenic activities on groundwater. Exceeding concentration of F−, Fe and Mn above WHO guidelines are found as major public health concern. WQI of all except 4 groundwater samples suggests excellent to good water quality; however, 23% of the samples are not suitable based on WPI values. Irrigation indices suggest that groundwater is mostly suitable for irrigation; however, 10.7%, 12.3% and 3% samples for RSBC, MAR and KR, respectively, exceed the recommended limits and are unsuitable for irrigation. A proper management strategy and quality assurance is recommended before groundwater consumption and use in the study area.

scholarly journals Isotopic and Hydrochemical Study of Groundwater in an Area Between the Lesser Zab and Tigris River, Northern Iraq

2021 ◽  
Vol 54 (1F) ◽  
pp. 44-50
Author(s):  
Qusai Y. Al-Kubaisi
Keyword(s):  
Stable Isotopes ◽  
Major Ions ◽  
Water Cycle ◽  
Saline Water ◽  
Regression Line ◽  
Local Source ◽  
Vapor Source ◽  
Mean Values ◽  
Tigris River ◽  
Groundwater Samples

Stable isotopes (2H, 18O) in the water cycle can carry all the information about the movement of water molecules, their ratio different from one place to another in rainfall. Stable isotopes are the function of evaporation, relative humidity, temperature and different longitude, latitude and altitude. On this base. A total of 28 water sample (20 samples were analyzed for major ions and 8 samples for stable isotopes) were collected for two periods to study the origin and the type of groundwater in the area between Lesser Zab and the Tigris river The Results indicated that groundwater samples in the study area are brackish saline water and excessively mineralized water. The average groundwater was classified as Mg-Na-Calcium: Cl-Sulfate for two periods. The groundwater samples represent earth alkali with privilege sulfate and chloride according to the piper diagram. The mean values of 18H and 2O in the groundwater sample are -27.7 and -4.9, respectively for the dry period, and -29.8 and -5.2, respectively, for the wet period. The d-excess varies significantly depending on the humidity and temperature at the vapor source. Isotopic analysis of 2H -18O for groundwater in the study area shows that the origin of groundwater in the study area is of meteoric origin from global source and rain from a local source. The downward shifting of the regression line on the 2H-18O diagram indicates that the samples have undergone evaporation events.

scholarly journals Assessment of groundwater quality of different micro-basins of Bangladesh 2 using hydrochemical analysis

2017 ◽  
Vol 5 (4) ◽  
Author(s):  
Md. Hossain Ali
Keyword(s):  
Quality Parameters ◽  
Chemical Compositions ◽  
Combined Approach ◽  
Allowable Limit ◽  
Major Cations ◽  
Groundwater Samples ◽  
Groundwater Hydrochemistry ◽  
Irrigation Quality ◽  
Removal System

On the basis of groundwater chemistry, an evaluation of groundwater for domestic and irrigation purposes  was carried out for different regions of Bangladesh. Using the chemical compositions and different quality parameters, irrigation quality was assed using 6 different techniques: USDA method, FAO guidelines, Water-Types approach, Combined approach proposed by Al-Bassam et al. (2003), Ali (2010), and GOB (2007) guidelines. Drinking quality was judged by WHO (2011) provisional guidelines and GOB guidelines. Concentrations of major cations and anions of most groundwater samples were within allowable limit. Except one location (i.e. Barisal), the water for irrigation purpose are suitable to 19 marginally suitable considering salinity and sodicity. For drinking purpose, all except 2 locations (i.e. 20 Sunamgonj and Barisal, where iron is a concern) are found suitable. At these locations, other aquifer layer 21 with low Fe can be searched for safer Fe level. Alternatively, Fe removal system can be assembled for 22 collecting drinking water.Keywords: Groundwater, Hydrochemistry, Quality parameters, Integrated quality assessment, Bangladesh

Hydrochemical Assessment Of Jhilmila Lake, Kanchanpur, Nepal

2021 ◽  
Vol 14 (14) ◽  
pp. 124-131
Author(s):  
Khadka Bahadur Pal ◽  
Kiran Bishwakarma ◽  
Tarka Bahadur Chalaune ◽  
Durga Upadhaya ◽  
Tark Raj Joshi ◽  
...  
Keyword(s):  
Water Quality ◽  
Sustainable Management ◽  
Principal Component ◽  
Organic Pollution ◽  
Quality Parameters ◽  
Standard Test ◽  
Total Hardness ◽  
Test Procedures ◽  
Multivariate Statistical ◽  
Wetland Ecosystems

Freshwater contamination remains a challenging issue for the sustainable management of wetland ecosystems. This study aims to evaluate the water quality of Jhilmila Lake, Kanchanpur, Nepal by adopting standard test procedures, geochemical indices, and multivariate statistical analysis. The surface water samples were collected during the postmonsoon season in 2018 to assess the hydrochemical parameters such as pH, electrical conductivity (EC), total dissolved solids (TDS) and dissolved oxygen (DO), ammonium (NH4+ ), sodium (Na+), potassium (K+), calcium (Ca2+), magnesium (Mg2+), chloride (Cl-), sulphate (SO42-), nitrate (NO3-), phosphate (PO43-), bicarbonate (HCO3-) and total hardness (TH). The EC ranged from 162-190 µS/cm while TDS was 87-101 mg/L. The concentration of DO in the lake was in the range of 4.77-6.21 mg/L, indicated mild organic pollution. Moreover, the results revealed the moderate alkaline nature of water with the pattern of average ionic dominance of Ca2+>Na+>Mg2+ >K+>NH4+ for cations, and HCO3˗> Cl-> SO42- > NO3- > PO43- for anions. The principal component analysis demonstrated four major components indicating the association of EC, TDS, Ca2+, Mg2+, and HCO3- ; Na+ , PO43- and SO42-; NO3- and K+ ; and Cl- for PC1, PC2, PC3, and PC4, respectively exhibiting both the geogenic and anthropic origin. Overall, the Jhilmila Lake was less polluted, and all the measured water quality parameters were found within permissible limits in terms of drinking purposes. The findings of this study could help for the sustainable management of the lake by providing better insights into the water quality and hydrochemistry of the lake.

scholarly journals Characteristics of Hydrochemistry and Stable Isotopes in a Karst Region in Samcheok, Republic of Korea

Water ◽  
2021 ◽  
Vol 13 (2) ◽  
pp. 213
Author(s):  
Jiwook Jang ◽  
Jin-Yong Lee ◽  
Heejung Kim
Keyword(s):  
Water Quality ◽  
Stable Isotopes ◽  
Surface Water ◽  
Water Samples ◽  
Major Ions ◽  
Scientific Basis ◽  
Quality Parameters ◽  
Karst Region ◽  
Field Surveys ◽  
High Precipitation

Karst regions cover approximately 10% of the Korean Peninsula and are highly vulnerable to contamination. In this study, five field surveys were conducted between 2017 and 2019 to examine the monthly and seasonal changes in the hydro-environment of a characteristic karst region in Samchoek, South Korea. During the surveys, a total of 24 surface water samples were collected and analyzed for field water quality parameters, major and minor ions, and stable isotopes. The results indicate that the water quality in the study area is significantly affected by precipitation. Overall, the water was classified as a Ca-Mg-HCO3 type, and correlation analysis of the major ions detected in the water samples indicates that the inflow of nitrate to the surface water originated from agricultural activities in the region. Furthermore, variations caused by climate were verified using the relationships between the various ions. In addition, high precipitation rates during the rainy season cause the active exchange of surface material, which was verified using stable isotope outliers. The results provide a scientific basis for studying the connectivity of water systems in complex karst hydrogeological regions and can aid future sustainable management of water resources in these regions.

scholarly journals Water quality assessment of Owiwi River for potential irrigation of vegetables

2020 ◽  
Vol 39 (1) ◽  
pp. 293-300
Author(s):  
A.O. Eruola ◽  
A.A. Makinde ◽  
A.O. Eruola ◽  
R. Oladele
Keyword(s):  
Water Quality ◽  
Crop Production ◽  
Chemical Properties ◽  
Water Quality Assessment ◽  
Quality Parameters ◽  
Standard Test ◽  
Test Procedures ◽  
Salinity Hazard ◽  
Important Quality ◽  
Negative Impacts

Understanding water quality used for irrigation and its potential negative impacts on crop growth are important for optimization of crop production. The study involved the assessment of hydro-chemical properties and chemical indices of Owiwi river for irrigation of vegetables from the measured quality parameters and analyzed for important quality indices following standard test procedures. The study revealed that pH of water was acidic in nature resulting in low residual sodium carbonate (RSC) values showing dominance of dissolved CO3, attributed to dissolution of limestone dominant in the study area. The water was regarded as permissible water based on electrical conductivity (EC) and total dissolved solids (TDS), implying non detrimental salinity hazard in the soils. Excessive Na content (> 250 MMg/L) in water reduces the permeability thereby influencing availability of water for the plant usage, obviously associated with low EC and sodium adsorption ratio (SAR) observed in the river water. The excess hardness resulting from high content of calcium and magnesium ions derived from limestone and chalk is undesirable mostly for esthetic reasons like plumbing of irrigation systems. Generally, the water can be classified as good for irrigation of vegetable on the bases of PI, MAR, % Na, SAR and % yield. Keywords: Hydro-chemical, permeability, soil, limestone, yield.

Groundwater hydrochemistry in the crystalline laterites/forest loams of Kasargod district, Kerala, India

2013 ◽  
Vol 13 (2) ◽  
pp. 486-498 ◽  
Author(s):  
P. S. Akhil ◽  
K. N. Sumangala ◽  
C. H. Sujatha
Keyword(s):  
Major Ions ◽  
Hot Spot ◽  
Correlation Study ◽  
Quality Parameters ◽  
Drinking And Irrigation ◽  
Major Cations ◽  
Groundwater Samples ◽  
Microbiological Parameters ◽  
Groundwater Hydrochemistry ◽  
Irrigation Quality

Groundwater quality assessment for drinking and irrigation purposes in the specific hot spot areas of Kasargod District, Kerala, India, was conducted during July 2009 to January 2011. Groundwater samples were examined and quantified for the major cations and anions, microbiological parameters, irrigation quality parameters such as sodium adsorption ratio (SAR), residual Mg/Ca ratio and %Na. Most of the ground samples were acidic in nature and the fluoride concentrations exhibited below the desirable limit. Concentration of iron exceeds the desirable limit of 0.3 mg/l during monsoon 2009 and pre-monsoon 2010. The competitive and non-competitive ion relationship between the major ions was authenticated by the correlation study.

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