scholarly journals Assessment of Groundwater Quality and Pollution in the Songnen Plain of Jilin Province, Northeast China

Water ◽  
2021 ◽  
Vol 13 (17) ◽  
pp. 2414
Author(s):  
Yanan Chen ◽  
Yichen Zhang ◽  
Jiasheng He ◽  
Jiquan Zhang ◽  
Qiuling Lang ◽  
...  
Keyword(s):  
Groundwater Quality ◽  
Water Conservation ◽  
Groundwater Resources ◽  
Research Result ◽  
Field Investigation ◽  
Total Hardness ◽  
Songnen Plain ◽  
Multivariate Statistical ◽  
Factors Affecting ◽  
General Chemical

Clean groundwater resources are vital to human health. To evaluate groundwater quality in the Songnen Plain (Jilin), a field investigation sampling test, multivariate statistical analysis, and spatial analysis were conducted based on a geographic information system. The main substances exceeding the standard were screened out, and the main controlling factors affecting groundwater quality were discussed. The research result showed that nine components exceeded groundwater standards by approximately 10%: Al, total hardness (TH), total dissolved solids (TDS), Mn, As, NO3−, Fe, F−, and BaP. The over-standard of TDS and TH in groundwater are mainly distributed in the geological environment conditions and unreasonable exploitation and utilization of groundwater in this area. The results of the multi-index evaluation showed that the most important factors affecting groundwater quality were general chemical indices, followed by inorganic toxicology and heavy metals. Controlling the overexploitation of water resources, controlling agricultural activities and sewage discharge, and implementing water conservation systems are the main pathways to improve water quality in the study area. The research results can provide a reference for groundwater pollution control and water resource protection in the Songnen Plain (Jilin).

scholarly journals Hydrochemical Characteristics and Identification of Groundwater Pollution Sources in Tropical Savanna

2021 ◽  
Author(s):  
Abduljalal Abdulsalam ◽  
Mohammad Ramli ◽  
Nor Jamil ◽  
Zulfa Ashaari ◽  
Da’u Umar
Keyword(s):  
Groundwater Quality ◽  
Groundwater Pollution ◽  
Groundwater Resources ◽  
Principal Component ◽  
Hierarchical Cluster ◽  
Pollution Sources ◽  
Water Type ◽  
Multivariate Statistical ◽  
Factors Affecting ◽  
Anthropogenic Processes

Groundwater pollution of the watershed is mainly influenced by the multifaceted interactions of geogenic and anthropogenic processes. In this study, classic chemical and multivariate statistical methods were used to assess the groundwater quality and identify the potential pollution sources affecting the groundwater quality of Galma sub-watershed in a tropical savannah. For this purpose, the dataset of 18 groundwater quality variables covering 57 different sampling boreholes (BH) was used. The order of abundance of the main cations and anions in the samples are Ca2+ > Na+ > Mg2+ > K+ and HCO3− > Cl− > SO4−2 > NO3− respectively. Piper diagram classified the groundwater types of the watershed into mixed Ca–Mg–Cl type of water, which means no cations and anions exceeds 50%. The second dominant water type was Ca–Cl. The Mg–HCO3 water type was found in BH 9, and Na–Cl water type in BH 29 respectively. Hierarchical cluster analysis grouped the sampling boreholes into five statistically significant clusters based on similarities of groundwater quality characteristics. Principal component extracted two principal components that explained around 65% of the total variance, which natural and anthropogenic processes especially agricultural activities as the dominant factors affecting the groundwater quality. The findings of this study are useful to the policy and decision-makers for formulating efficient groundwater utilization and management plans for the groundwater resources.

A GIS-based assessment of spatial groundwater quality for drinking purposes in Asmara City, Eritrea

2021 ◽  
Author(s):  
Kabral Mogos Asghede ◽  
Dawit Berhane Hagos
Keyword(s):  
Groundwater Quality ◽  
Potable Water ◽  
Critical Level ◽  
Groundwater Resources ◽  
Total Dissolved Solids ◽  
Total Hardness ◽  
Analysis Framework ◽  
Alternative Source ◽  
Drinking Purposes ◽  
Supply Problem

<p><strong>Abstract</strong>: Presently the water-supply problem in the Asmara area has reached to a critical level. Using a GIS-based method this study identifies the spatial variability of the groundwater quality in the Asmara Area which could be an alternative source. The results show that, the Total Dissolved Solids (TDS), Total Hardness (TH), Chloride (Cl<sup>-</sup>), Nitrates (NO<sub>3</sub><sup>-</sup>), Calcium (Ca), Magnesium (Mg), Sulphate (SO<sub>4</sub>) and pH are 791.71, 569.12, 124.41, 64.46, 155.60, 46.64, 159.26 and 7.72 mg/L, respectively. Moreover, the zone map of the developed groundwater quality shows that the potable water without treatment covers about 35%, and the potable water in the absence of better alternate sources covers about 58% of the total area. The remaining, 7.04% of the total, falls under non-potable groundwater quality. The verification of the spatialanalysis demonstrates that the framework is the first one in Eritrea and could be used as a potential prediction for the assessment of the spatial groundwater quality in the countries with further verification results. Hence, the delineation of groundwater quality zones and establishment of a GIS-based database will easily help the decision makersto monitor and plan the utilization of the groundwater resources in the study area.</p><p><strong>Keywords: </strong>Groundwater quality; physicochemical parameters; GIS spatial analysis; framework</p>

Spatial distribution of physico-chemical parameters for groundwater quality evaluation in a part of Satluj River Basin, India

2019 ◽  
Vol 19 (5) ◽  
pp. 1480-1490 ◽  
Author(s):  
Akshay Kumar Chaudhry ◽  
Kamal Kumar ◽  
Mohammad Afaq Alam
Keyword(s):  
Spatial Distribution ◽  
Groundwater Quality ◽  
Spatial Dependence ◽  
Groundwater Resources ◽  
Quality Parameters ◽  
Northern Region ◽  
Total Hardness ◽  
Data Set ◽  
Distribution Maps ◽  
Physico Chemical

Abstract The rising population, contamination and mismanagement of groundwater worldwide require sustainable management techniques and strategies to prevent misuse of groundwater resources especially in the semi-arid regions of the world. The aim of the present study is to assess the distribution of contaminants in groundwater at a spatial level by using a geostatistical method, namely ordinary kriging. For this, a physico-chemical parameter data set at 14 sampling locations for a period over 25 years was assessed. Three semi-variogram models, namely exponential, Gaussian and spherical, fitted well for the data set and were cross-validated using predictive statistics. Based on nugget/sill ratio, which characterizes the overall spatial dependence of water quality parameters, it was observed that, apart from nitrate, all the other parameters showed moderate to weak spatial dependence (i.e. total hardness), indicating significant influence of urbanization, fertilization and industrialization. Spatial distribution maps of all the parameters were generated. Concentration of most of the parameters reported high values in the northern region, while silicon dioxide and potassium recorded high values in the southern and central regions of the study area respectively. The study highlighted the depleting groundwater resources in various regions of the study area, indicating that the groundwater quality is in a declining state.

scholarly journals Hydrogeochemical Characteristics and Groundwater Quality Evaluation Based on Multivariate Statistical Analysis

Water ◽  
2020 ◽  
Vol 12 (10) ◽  
pp. 2792
Author(s):  
Yunxu Chai ◽  
Changlai Xiao ◽  
Mingqian Li ◽  
Xiujuan Liang
Keyword(s):  
Water Quality ◽  
Groundwater Quality ◽  
Quality Evaluation ◽  
Control Mechanism ◽  
Groundwater Resources ◽  
Fuzzy Comprehensive Evaluation ◽  
Multivariate Statistical ◽  
Rock Interaction ◽  
Geological Conditions ◽  
Development And Management

Hydrogeochemical research and water quality evaluation are an important part of groundwater development and management projects in Dehui City, Jilin Province, China. We collected 217 groundwater samples in the study area and used two multivariate statistical methods, hierarchical cluster analysis and principal component analysis to classify groundwater; combined graphical method, piper diagram, and Gibbs diagram to characterize groundwater chemical types and distinguish the water chemical control mechanism; and fuzzy comprehensive evaluation method to evaluate groundwater quality. Three major categories have been identified. Most of the groundwater in the study area is Ca-HCO3 type water. The water chemistry control mechanism is determined to be based on water-rock interaction and less evaporation. From east to west in the study area, the total dissolved solids (TDS) gradually increased, and water quality gradually deteriorated. In the whole region, 79.26% of the groundwater is suitable for drinking. With Yinma River at the boundary, the water quality in the eastern part is excellent, while that in the southwest is poor. After appropriate treatment, it can be used in industry and agriculture. The excess NO3− is mainly affected by human activities. The unique geological conditions of the Songnen Plain result in an excess amount of Fe3+ and Mn2+ in some areas. This study determined the chemical characteristics of groundwater in the study area and distinguished water quality levels. The results will be helpful for the development and management of groundwater resources.

scholarly journals Assessment of Groundwater Quality for Drinking and Domestic Purposes through Local Survey and Water Quality Index in Vietnam

2021 ◽  
Vol 56 (2) ◽  
pp. 83-93
Author(s):  
Huynh The An ◽  
Tran Thi Ngoc Bich ◽  
Chen Yi-Ching ◽  
Tran Thi Thu Hien
Keyword(s):  
Water Quality ◽  
Groundwater Quality ◽  
Water Quality Index ◽  
Quality Index ◽  
Groundwater Resources ◽  
Total Hardness ◽  
Nitrate Content ◽  
Physical Parameters ◽  
Groundwater Exploitation ◽  
Groundwater Samples

The quality of groundwater resources is increasingly declining, significantly affecting people’s life and health. The study aims to assess public perception on existing groundwater quality and scheme over conventionally used free groundwater. The contemporaneous analytical procedures applied to determine the concentration of physical parameters: total dissolved solids and total solids and chemical parameters: pH, nitrite (N-NO2-), nitrate (N- NO3-), ammonium (N-NH4+/ NH3), iron (FeII + III) and total hardness were collected for 30 drinking water well samples located in 5 Quarters (An Hoa, An Loi, Ben Don, Phu Hoa, and Phu Nghi) to calculate the water quality index. The results show that up to 96% of people still use groundwater as their main source of drinking, domestic purposes, although groundwater quality is showing a serious decline in quality. The low pH index ranges from 3.0 ÷ 4.5. On average, 3.5 ÷ 4.0 pH of groundwater samples are outside the permissible limit according to VN standards 09: 2015 (5.5 - 8.5), which makes the water acidic, which harmful to human health. Besides, 10% of groundwater samples had high nitrate content, and 6.67% of water samples had ammonium content that did not meet VN standards 09: 2015. The current state of groundwater quality is not good for cooking and drinking. The results will benefit future groundwater exploitation to support more evidence of water quality and deteriorate the water quality soon, ultimately proving to be disastrous for all living beings in the region.

scholarly journals Evaluation of groundwater quality in central Saudi Arabia using hydrogeochemical characteristics and pollution indices

2021 ◽  
Author(s):  
Talal Alharbi ◽  
Abdelbaset Sabry El-Sorogy ◽  
Saleh Qaysi ◽  
Fahad Alshehri
Keyword(s):  
Heavy Metal ◽  
Saudi Arabia ◽  
Groundwater Quality ◽  
Heavy Metal Contamination ◽  
Pollution Index ◽  
Poor Quality ◽  
Quality Parameters ◽  
Pollution Indices ◽  
Multivariate Statistical ◽  
Factors Affecting

Abstract The groundwater quality and heavy metal contamination were evaluated in thirty palm farms, central Saudi Arabia using pollution indices, irrigation quality parameters, and multivariate statistical analyses. The results showed that the average values of TDS, Ca + , Na + , K + , Cl − , SO 4 2− , and F − were greater than the permissible limits of the WHO standards for drinking water. The groundwater facies types were Ca–Na–SO 4 –Cl (23 samples), Ca–Cl–SO 4 , (4 samples), and Ca–SO 4 –Cl type (3 samples). The groundwater quality index indicated that 15 groundwater samples were of good quality and 15 were of poor quality, whereas the metal index and heavy metal pollution index indicated that all samples were categorized as slightly affected and with low pollution, respectively. The variation is attributed to the increasing average values of some ions and decreasing HMs. The dissolution/precipitation of silicates, gypsum, and carbonates, and soil leaching were the natural factors affecting groundwater chemistry, whereas higher PO 4 3− , NO 3 − , F − , Pb, and Zn values in some samples may be attributed to human activities from the extensive use of fertilizers and pesticides on the investigated farms.

scholarly journals Assessment of Groundwater Quality Using Water Quality Index and Geographic Information System in Kumbotso Local Government Area, Kano State, Nigeria

2021 ◽  
Vol 5 (2) ◽  
pp. 569-581
Author(s):  
A.A. Saidu ◽  
S. Danazumi ◽  
S.M. Hamza
Keyword(s):  
Water Quality ◽  
Information System ◽  
Geographic Information System ◽  
Groundwater Quality ◽  
Water Quality Index ◽  
Quality Index ◽  
Groundwater Resources ◽  
Geographic Information ◽  
Total Hardness ◽  
Arid Environments

Water managers are faced with issues of groundwater resources management in dry land environments characterized by increasing population growth and prolonged dry period. Pollution of such resources has become a problem of notable importance in many arid and semi-arid environments of the developing countries. Unplanned urbanization; industrialization coupled with an increase in agricultural expansion has adversely affected groundwater quality. This study provides an overview of the status of groundwater quality in Kumbotso L.G.A using Water Quality Index. Physico-chemical parameters of pH, total dissolved solids, total hardness, magnesium, chloride, nitrate, calcium, and sulphate were measured from 12 groundwater samples. The results of the analysis were compared to the WHO standards to ascertain conformity with the guidelines. The Geographic Information System (GIS) was employed for mapping the distribution of various quality parameters as well as the overall groundwater quality condition. The overall map produced shows that 53.42km2 of the study area representing 33.81% were of excellent quality while 104.58km2 representing 66.19% of the area was found to be of good quality. Thus, a GIS based map developed can be a useful practical tool by water managers, policymakers and concerned communities in taking strategic decisions towards effective management of groundwater in the study area.

scholarly journals Approach to Groundwater Management towards Sustainable Development in India

2018 ◽  
Vol 7 (1) ◽  
Author(s):  
Y.D. Khare ◽  
Abhay M. Varade
Keyword(s):  
Sustainable Development ◽  
Drinking Water ◽  
Groundwater Management ◽  
Water Conservation ◽  
Management Practices ◽  
Groundwater Resources ◽  
Management Strategies ◽  
Controlling Factors ◽  
Factors Affecting ◽  
Groundwater Assessment

The management of groundwater resources for sustainable development is a challenging task in India because of its vast geographical extent (3287000 km2), where about 1250 million people live. As a result, the Country is facing scarcity of drinking water quite often. This situation compels to adopt management practices for the development of sustainable groundwater resources. The objective of the paper is to focus on need of adoption of appropriate management strategies for sustainable development of groundwater resources. In view of this the groundwater situation in India as reflected through published literature has been discussed, in which the causes of scarcity, aquifer situation, and groundwater assessment in India have been explained. Based on this study the future approach for groundwater management to achieve the objective of sustainable development has been suggested. This paper provides insight to all the controlling factors affecting groundwater resources in India. Based on this, suggestions for future implementation of water conservation programmes have also been discussed. The present study shows that despite availability of ample groundwater resources the country faces drinking water scarcity quite often. This fact needs further analysis of scarcity situation to provide everlasting solution of problems related to groundwater.

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