Anthropogenic Effects on Hydrogeochemical Characterization of the Shallow Groundwater in an Arid Irrigated Plain in Northwestern China

Many irrigated plains in arid and semi-arid regions have groundwater quality issues due to both intensive human activity and natural processes. Comprehensive studies are urgently needed to explore hydrogeochemical evolutions, investigate possible pollution sources, and understand the controls on groundwater compositions in such regions. Here, we combine geostatistical techniques and hydrogeochemical assessments to characterize groundwater quality over time in the Yinchuan Plain (a typical irrigated plain in China), using 12 physicochemical variables derived from sampling in 600 and 602 wells in 2004 and 2014, respectively. Our results show that groundwater-rock interactions and evaporation are the key natural factors controlling groundwater compositions. Hydrogeochemical water types in both 2004 and 2014 were Ca-HCO3, Na-Cl, and mixed Ca·Mg-Cl. Along with the hydrogeochemical compositions, we used ionic ratios and the saturation index to delineate mineral solution reactions and weathering processes. Dissolution of gypsum, halite, fluorite, and mirabilite, along with silicate weathering and cation exchange, were identified in the study area. Our results indicated rising ion concentrations in groundwater, which could be the result of anthropogenic influences. Increasing total hardness and nitrates over the study period were most likely caused by agricultural activity and the discharge of waste water from human residential areas.

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Hydrogeochemistry and Quality Assessment of Shallow Groundwater in the Southern Part of the Yellow River Alluvial Plain (Zhongwei Section), Northwest China

Earth Sciences Research Journal ◽

10.15446/esrj.v18n1.34048 ◽

2014 ◽

Vol 18 (1) ◽

pp. 27-38 ◽

Cited By ~ 61

Author(s):

Peiyue Li ◽

Jianhua Wu ◽

Hui Qian

Keyword(s):

Water Quality ◽

Yellow River ◽

Saturation Index ◽

Shallow Groundwater ◽

Northwest China ◽

Alluvial Plain ◽

Total Hardness ◽

The Yellow River ◽

Human Consumption ◽

Mineralized Water

Statistical analyses, a Piper diagram, the saturation index and the correlations of chemical parameters were used to reveal the hydrogeochemistry and hydrogeochemical evolution of shallow groundwater in the southern part of the Zhongwei section of the Yellow River alluvial plain. The water quality for agricultural and domestic uses was also assessed in the study. The results suggest that the shallow groundwater in the study area is fresh to moderately mineralized water. Higher Ca2+ and HCO3- are observed in the less mineralized water, whereas Na+ and SO42- are common ions in the highly mineralized water. The major hydrochemical facies for groundwater with total dissolved solids (TDS) <1 g/L are HCO3-Ca·Mg and HCO3-Ca·Na·Mg, and for groundwater with TDS > 1 g/L, SO4·Cl-Na and SO4·Cl-Na·Mg·Ca are the predominant hydrochemical types. The main reactions in the groundwater system are the dissolution/precipitation of gypsum, fluorite, halite, calcite and dolomite. Cation exchange is also important in controlling the groundwater chemistry. The water samples assessed in the paper are of acceptable quality for agricultural use, but most of them are not fit for direct human consumption (drinking). TDS, total hardness (TH), Cl- and SO42- are the main indices that result in the poor drinking water quality. ResumenAnálisis estadísticos, un diagrama de Piper, el índice de saturación y la correlación de los parámetros químicos fueron utilizados para revelar la hidrogeoquímica y la evolución hidrogeoquímica de las aguas subterráneas poco profundas en la parte sur de la sección Zhongwei en la planicie aluvial del río Amarillo. La calidad del agua para el uso doméstico y agrícola también fue evaluada en este estudio. Los resultados sugieren que las aguas subterráneas poco profundas en el área de estudio son entre frescas y moderadamente mineralizadas. Un índice mayor de Ca2+ y HCO3- se observó en las aguas menos mineralizadas, mientras que Na+ y SO42- son iones comunes en las aguas altamente mineralizadas. Los perfiles hidroquímicos predominantes para las aguas subterráneas con Total de Sólidos Disueltos (TDS) <1 g/L son HCO3-Ca·Mg y HCO3-Ca·Na·Mg, y para las aguas subterráneas con TDS >1 g/L, SO4·Cl-Na y SO4·Cl-Na·Mg·Ca. Las mayores reacciones en el sistema de aguas subterráneas son la disolución/ precipitación de yeso, fluorita, halita, calcita y dolomita. El intercambio de cationes también es importante en el control de la química de las aguas subterráneas. Las muestras de agua evaluadas en este manuscrito son de calidad aceptable para el uso agrícola, pero la mayoría no son aptas para el consumo humano. El índice TDS, la dureza total del agua (TH), Cl- y SO42- son las razones principales que influyen en la baja calidad de esta agua.

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Influences of natural and anthropogenic processes on the groundwater quality in the Dagujia River Basin in Yantai, China

Journal of Water Supply Research and Technology—AQUA ◽

10.2166/aqua.2019.113 ◽

2019 ◽

Vol 69 (2) ◽

pp. 184-196 ◽

Cited By ~ 1

Author(s):

Henghua Zhu ◽

Jianwei Zhou ◽

Tingting Song ◽

Haibo Feng ◽

Zhizheng Liu ◽

...

Keyword(s):

Groundwater Quality ◽

Seawater Intrusion ◽

Human Activities ◽

Industrial Development ◽

Anthropogenic Activities ◽

Total Hardness ◽

Chemical Components ◽

Chemical Compositions ◽

Rock Interaction ◽

Natural Processes

Abstract Groundwater plays an important role in water supply and economic development for Yantai city, China. However, the groundwater quality has degraded due to the increase and expansion of agricultural and industrial development. It is urgent to acquire groundwater characteristics and distinguish impacts of natural factors and anthropogenic activities on the groundwater quality. Forty-six groundwater samples collected from different wells showed a great variation of chemical components across the study area. Most wells with higher total dissolved solids, total hardness, K+, Na+, Ca2+, Mg2+, Cl− and SO42− concentrations were located relatively close to the coastal zone. The factor analysis (FA) and hierarchical cluster analysis results displayed that seawater intrusion was the primary mechanism controlling the groundwater quality in the coastal areas. A three-factor model was proposed based on the FA and explained over 85% of the total groundwater quality variation: Factor 1, the seawater intrusion; Factor 2, the water–rock interaction and Factor 3 (NO3−), the human activities. Furthermore, the geographical maps of the factor scores clearly described the spatial distributions of wells affected by natural processes or human activities. The study indicated that both natural processes and human activities are the major factors affecting the chemical compositions of groundwater.

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Study on the Influence of Shallow Groundwater Source Heat Pumps on Groundwater Quality in Weifang, China

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.641-642.97 ◽

2014 ◽

Vol 641-642 ◽

pp. 97-100

Author(s):

Qiang Huang ◽

Wei Ping Wang ◽

Hai Yan Deng

Keyword(s):

Groundwater Quality ◽

Heat Pump ◽

Shallow Groundwater ◽

Heat Pumps ◽

Total Hardness ◽

Project Area ◽

Research Objects ◽

Groundwater Source ◽

Change Curve

Selecting 4 shallow groundwater source heat pump (GSHP) projects as research objects in Weifang city of Shandong province, China, the groundwater quality in the project area was, observed and analyzed by sampling continuously. The results show that the concentrations of chloride and the total hardness are relatively stable, and there are no apparent changes; In the change curve of TDS in different kind of shallow GSHPs, the worse the sealing condition of the project, the more obvious the rising trend of TDS; The concentration of nitrate is generally on the rise, and the concentration of ammonia appears in the trend of first increased then decreased. Therefore, in the region, the shallow GSHPs are not completely free from contamination in the current technology conditions and the application should be controlled and managed strictly. The observation of shallow GSHPs still need be conducted in a long term.

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Characteristics of Hydrogeochemistry and Groundwater Quality in a Riverbank Filtration Site, Northeastern China

10.5194/egusphere-egu2020-4690 ◽

2020 ◽

Author(s):

Yanguo Teng ◽

Yuanzheng Zhai ◽

Haiyang Chen ◽

Ruihui Chen

Keyword(s):

Spatial Distribution ◽

Groundwater Quality ◽

Land Surface ◽

Evaluation Method ◽

Major Ions ◽

Comprehensive Evaluation ◽

Shallow Groundwater ◽

Distribution Patterns ◽

Total Hardness ◽

Spatial Distribution Patterns

Studies on hydrogeochemical characteristics and an assessment of the groundwater quality for drinking purposes were conducted in and around the riverside source field of Wuchang, Northeast China. Twenty-seven and twenty-three shallow groundwater samples were collected for measuring on-site parameters and major components in the years 2000 and 2014, respectively. In 2014, the average concentrations of major ions of shallow groundwater were found to be in the following order: Ca2+> Na+> Mg2+> K+ for cations and HCO3-> SO42-> Cl-> NO3- for anions. The spatial distribution patterns of K+ and NO3- had no obvious regularity, whereas Cl- and Na+ showed similar spatial distribution patterns. Ca-HCO3 and mixed type water were the dominant hydrochemical types. The analysis of the SI values for minerals and the Gibbs plot illustrated that the concentrations of major components were mainly controlled by rock weathering, such as the dissolution of calcite, dolomite, halite, gypsum and aragonite, followed by ion exchange. Indicators, such as Total hardness (TH), Total Dissolved Solids (TDS), Cl-, SO42- and NO3-, were selected to assess the groundwater quality using a comprehensive evaluation method of dividing the groundwater quality into five classes: excellent, good, fair, poor and very poor water. The results showed that 7.4% and 34.8% of the total groundwater sample in 2000 and 2014, respectively, were unsuitable for drinking use, indicating that the shallow groundwater quality has gradually worsened in the past few decades. The concentration of NO3- was a major factor that influenced the observed groundwater quality changes.Acknowledgments This study was supported by the NSFC (No.41877355), Beijing Advanced Innovation Program for Land Surface Science, and the&#160;111 Project of China (B18006).

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Shallow groundwater quality assessment: use of the improved Nemerow pollution index, wavelet transform and neural networks

Journal of Hydroinformatics ◽

10.2166/hydro.2017.224 ◽

2017 ◽

Vol 19 (5) ◽

pp. 784-794 ◽

Cited By ~ 4

Author(s):

Q. Yang ◽

J. Zhang ◽

Z. Hou ◽

X. Lei ◽

W. Tai ◽

...

Keyword(s):

Neural Network ◽

Groundwater Quality ◽

Back Propagation ◽

Oxygen Demand ◽

Shallow Groundwater ◽

Pollution Index ◽

Quality Standard ◽

Total Hardness ◽

Back Propagation Algorithm ◽

National Quality

Shallow groundwater is generally of great interest to the community due to its easy availability. However, it is very sensitive to external stimulus. In this paper, shallow groundwater quality is assessed and classified with improved Nemerow pollution index, multi-layer perceptron artificial neural network (MLP-ANN) optimized with a back-propagation algorithm and wavelet neural network (WNN) methods in a coastal aquifer, Fujian Province, South China. The data used in three models were collected during the pre-monsoon over the period 2004–2011. The eight parameters, total dissolved solids, total hardness, chemical oxygen demand, chloride, sulphate, nitrate, nitrite and fluorides, were selected to characterize groundwater quality classification based on the National Quality Standard for Groundwater (GB/T 14848-93). The results of MLP-ANN and WNN are interpreted by mean absolute error, root mean square error and R2 (determination coefficient) criteria. The results obtained from three methods demonstrate that WNN has a higher accuracy compared with the other two methods. The study reveals that these methods are efficient tools for assessing groundwater quality.

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Hydrochemical Characteristics and Groundwater Quality Assessment in the Diluvial Fan of Gaoqiao, Emei Mountain, China

Sustainability ◽

10.3390/su10124507 ◽

2018 ◽

Vol 10 (12) ◽

pp. 4507 ◽

Cited By ~ 1

Author(s):

Yanna Yang ◽

Wenlai Xu ◽

Jinyao Chen ◽

Qiang Chen ◽

Zhicheng Pan

Keyword(s):

Groundwater Quality ◽

Human Activities ◽

Pollution Prevention ◽

Shallow Groundwater ◽

Pollution Assessment ◽

Total Hardness ◽

Chemical Components ◽

Hydrochemical Characteristics ◽

Rock Interaction

Methods for groundwater quality and pollution assessment are applied extensively, but it is difficult to determine a unified evaluation model. On the basis of hydrogeochemical characteristics analysis in 2016 compared with that in 1995, the five-element connection number SPA (set pair analysis) method was applied to evaluate the groundwater quality of the Gaoqiao diluvial fan under the influence of hydrogeological conditions and human activities along the flow path in our work. Descriptive statistics methods, Piper diagram, and a Schoeller diagram were also used to analyze the hydrochemical characteristics of groundwater such as chemical components, total dissolved solid, and total hardness. The change of the typical pollutant of fluorine was analyzed to evaluate the groundwater quality under the influence of human activities. The results showed that the groundwater quality in the study area was more in rank П. The basic hydrochemical types of shallow groundwater were HCO3-Ca·Mg and HCO3·SO4-Ca·Mg. The influencing factors of the hydrochemical component of groundwater were identified in the Gaoqiao diluvial fan. The quality of groundwater changed slightly from the top to the edge of the fan due to the water–rock interaction except for in Yucun and Hucun influenced by human activities. The assessment result can provide a scientific basis for the pollution prevention and changing process control of the groundwater in the hydrogeological unit of the Gaoqiao diluvial fan.

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Shallow groundwater quality in the Village of Patchogue, Suffolk County, New York

Scientific Investigations Report ◽

10.3133/sir20105132 ◽

2010 ◽

Author(s):

Irene J. Abbene

Keyword(s):

New York ◽

Groundwater Quality ◽

Shallow Groundwater ◽

Suffolk County ◽

The Village

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Spatial Variability of Groundwater Recharge and its Effect on Shallow Groundwater Quality in Southern New Jersey

Vadose Zone Journal ◽

10.2136/vzj2003.0677 ◽

2003 ◽

Vol 2 (4) ◽

pp. 677

Author(s):

Bernard T. Nolan ◽

Arthur L. Baehr ◽

Leon J. Kauffman

Keyword(s):

New Jersey ◽

Spatial Variability ◽

Groundwater Quality ◽

Groundwater Recharge ◽

Shallow Groundwater

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Groundwater quality assessment using water quality index (WQI) under GIS framework

Applied Water Science ◽

10.1007/s13201-021-01376-7 ◽

2021 ◽

Vol 11 (2) ◽

Author(s):

Arjun Ram ◽

S. K. Tiwari ◽

H. K. Pandey ◽

Abhishek Kumar Chaurasia ◽

Supriya Singh ◽

...

Keyword(s):

Water Quality ◽

Groundwater Quality ◽

Water Quality Index ◽

Quality Index ◽

Uttar Pradesh ◽

Granite Gneiss ◽

Total Hardness ◽

Human Consumption ◽

Anthropogenic Contamination ◽

Quality Of Water

AbstractGroundwater is an important source for drinking water supply in hard rock terrain of Bundelkhand massif particularly in District Mahoba, Uttar Pradesh, India. An attempt has been made in this work to understand the suitability of groundwater for human consumption. The parameters like pH, electrical conductivity, total dissolved solids, alkalinity, total hardness, calcium, magnesium, sodium, potassium, bicarbonate, sulfate, chloride, fluoride, nitrate, copper, manganese, silver, zinc, iron and nickel were analysed to estimate the groundwater quality. The water quality index (WQI) has been applied to categorize the water quality viz: excellent, good, poor, etc. which is quite useful to infer the quality of water to the people and policy makers in the concerned area. The WQI in the study area ranges from 4.75 to 115.93. The overall WQI in the study area indicates that the groundwater is safe and potable except few localized pockets in Charkhari and Jaitpur Blocks. The Hill-Piper Trilinear diagram reveals that the groundwater of the study area falls under Na+-Cl−, mixed Ca2+-Mg2+-Cl− and Ca2+-$${\text{HCO}}_{3}^{ - }$$ HCO 3 - types. The granite-gneiss contains orthoclase feldspar and biotite minerals which after weathering yields bicarbonate and chloride rich groundwater. The correlation matrix has been created and analysed to observe their significant impetus on the assessment of groundwater quality. The current study suggests that the groundwater of the area under deteriorated water quality needs treatment before consumption and also to be protected from the perils of geogenic/anthropogenic contamination.

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