scholarly journals Assessment of groundwater quality of middle – Upper pleistocene aquifer in Ca Mau peninsula

2016 ◽  
Vol 19 (1) ◽  
pp. 35-44
Author(s):  
Hai Hong Dao ◽  
Ky Viet Nguyen ◽  
Sang Thanh Tra ◽  
Vuong Tran Bui
Keyword(s):  
Water Resources ◽  
Groundwater Quality ◽  
Total Alkalinity ◽  
Middle Pleistocene ◽  
Total Hardness ◽  
Complex Data ◽  
High Quality ◽  
Pleistocene Aquifer ◽  
Groundwater Samples ◽  
Very High

Groundwater quality is a matter of concern in Ca Mau Peninsula. There have been many organizations, domestic and foreign scientific researchersworking on the issue, and they have produced various results regardinggroundwater pollution (arsenic, heavy metal, minerals, or saltwater intrusion…). In this paper, the authors assess groundwater quality by using the water quality index (WQI) to transform complex data into simple indicators that are easy to understand, and let people in the studied areas be aware of the pollution issue of the water resources they are using. Groundwater samples are collected from national monitoring wells and from exploitation works in the area. Indicators such as pH, TDS (total dissolved solids), total hardness (TH), total alkalinity (Na ++ K +), sulfate (SO42-), chloride (Cl), and nitrate ( NO3) are used to calculate WQI values.The WQI values of the middle Pleistocene aquifers of Ca Mau Peninsula range from 36.09 to 1,344. Based on these values, authors have classified groundwater samples into 5 groups of different qualities, from the very high quality to the unusable one. The very high quality accounts for 14% of the samples; good quality accounts for 49%, average quality accounts for 24%, poor quality accounts for 7%, and unusable accounts for 6% of the total samples.There is about 10% of the samples exceeding permissible limits of TDS, whereas the sulfate and chloride range from 20% to 21%. Samples of poor and unusable qualityare mainlyfrom Soc Trang province. Most of themhavethe TDS levels greater than 1, and some have an abnormally high level ofsulfatewhen compared with other samples in the area. The study hasyielded a more comprehensive assessment of groundwater quality, allowing regulators to plan water resources more reasonably and be able togive in time advices tothe people.

scholarly journals Assessment of Spatial Variation of Physicochemical Parameters of Groundwater in Some Communities of Yenagoa Metropolis

2021 ◽  
pp. 55-71
Author(s):  
Alfred Wilson Opukumo ◽  
Austin O. Oki
Keyword(s):  
Groundwater Quality ◽  
Physicochemical Parameters ◽  
Total Alkalinity ◽  
World Health ◽  
Total Hardness ◽  
High Concentration ◽  
Gis Technology ◽  
Groundwater Samples ◽  
Calcium Magnesium ◽  
Health Organization

Water is a basic need of life, and more so, potable water is critical for healthy living. Shallow boreholes are now popular as the main source of drinking water in the Yenagoa metropolis due to the contamination of surface water and rainwater caused by poor management of wastes and crude oil facilities in the area. However, there are concerns about variations in the quality of groundwater across communities in the Yenagoa metropolis. Thus, this study assesses the spatial variations of physicochemical parameters of groundwater samples from 50 boreholes in the area, and results compared with recommended standards prescribed by the World Health Organization (WHO). Parameters analyzed were pH, electrical conductivity (EC), salinity, total dissolved solids (TDS), nitrate, chloride, sulfate, total alkalinity (TA), total hardness (TH), calcium, magnesium, sodium, potassium, and iron. Global Information System (GIS) technology was adopted to present the groundwater quality in respect to each physicochemical parameter, in thematic maps. The maps showed that groundwater was slightly acidic in most communities in Central and Northern Yenagoa like Ekeki, Swali, Akaba, and Okolobiri. In communities like Ogbogoro, Ekeki, Azikoro and Yenegwe the EC was higher than the standard permissible value according to the WHO. A very high concentration of iron was observed across all communities except a few like Nedogo, Okolobiri, Tombia, Gbarantoru, Ayama, Famgbe, and Ikibiri having iron-free groundwater. Concentrations of TDS, calcium, magnesium, nitrates, sulfates, potassium, and sodium were within permissible limits across all communities. Communities like Ayama-Ijaw, Obololi, Ikibiri, Ikudu, Bomodi, Tombia, and Akaibiri had good groundwater while Ekeki, Famgbe, Yenaka, and Kpansia boast of excellent groundwater quality, and other areas had either poor or unsuitable groundwater for consumption. Treatment is recommended for parameters with higher concentrations than the standard value stipulated by the WHO.

scholarly journals EVALUATION GROUNDWATER QUALITY BY USING GIS AND WATER QUALITY INDEX TECHNIQUES FOR WELLS IN BARDARASH AREA, NORTHERN IRAQ

2020 ◽  
Vol 53 (2C) ◽  
pp. 87-104
Author(s):  
Kaiwan Fatah
Keyword(s):  
Water Quality ◽  
Groundwater Quality ◽  
Water Quality Index ◽  
Quality Index ◽  
Total Alkalinity ◽  
Total Hardness ◽  
Chemical Parameters ◽  
Alternative Source ◽  
Distribution Maps ◽  
Poor Water Quality

Studying groundwater quality in arid and semi-arid regions is essential significant because it is used as a foremost alternative source for various purposes (human and animal consumption, economic, agriculture and irrigation). Geographic Information System and Water Quality Index techniques were utilized for visualizing and evaluating the variations of groundwater quality in the studied area. Total twelve wells were sampled and twelve groundwater quality (chemical) parameters; pH, Total Alkalinity, Total Hardness (TH), Total Dissolved Solid (TDS), Electrical Conductivity (Ec), Potassium (K), Nitrate (NO3), Sulfate (SO4), Chloride (Cl), Calcium (Ca), Magnesium (Mg) and Sodium (Na) were analyzed in the laboratory. Inverse Distance Weighted technique was used as a useful tool to create and anticipate spatial variation maps of the chemical parameters. Predicting or anticipating other areas not measured, identifying them and making use of them in the future without examining samples. The results of this research showed that 8.3% of the studied wells have excellent groundwater quality, and almost sampling wells about 75% found in good groundwater quality, while findings of groundwater quality of 16.7% studied wells belong to poor water quality due to standards of Water Quality Index. Moreover, spatial analysis in term of groundwater quality map showed that Excellent groundwater quality was detected in well 3, very good groundwater potential was noticed in six studied wells (wells 2, 6, 8, 10, 11 and 12), and other sampling wells (wells 4 and 7) were observed as good groundwater quality, while poor water quality was observed in wells (well 1 and 5). Hence, spatial distribution maps showed that the almost groundwater quality in the area about 1046.82 km² (99.04%) are suitable for drinking purpose, whereas proximate 10.18 km² (0.96%) are observed as poor water quality and inappropriate for consumptions especially in the southern part of the area.

scholarly journals Entropy weight application for calculating groundwater quality index (EWQI) in groundwater quality zoning in Pleistocene aquifer in the Phu My town, Ba Ria – Vung Tau province

2020 ◽  
Vol 4 (1) ◽  
pp. 140-148
Author(s):  
Nguyen Hai Au ◽  
Tran Minh Bao ◽  
Pham Thi Tuyet Nhi ◽  
Tat Hong Minh Vy ◽  
Truong Tan Hien ◽  
...  
Keyword(s):  
Water Quality ◽  
Groundwater Quality ◽  
Quality Index ◽  
Animal Husbandry ◽  
Quality Parameters ◽  
Entropy Weight ◽  
Groundwater Quality Index ◽  
Pleistocene Aquifer ◽  
Groundwater Samples ◽  
Entropy Weight Method

Groundwater in Phu My town is exploited essentially in Pleistocene aquifer and, used for many purposes like irrigation, domestic, production and animal husbandry. In this study, Groundwater Quality Index (EWQI) is calculated with Entropy weight method to determine the suitability of groundwater quality in study area. This method demonstrates the objectivity of each parameter calculated based on the degree of variability of each value and depends on the sample data source. The groundwater samples were collected from 17 wells in dry and wet seasons in 2017 with ten water quality parameters (pH, TDS, TH, Cl-, F-, NH4+-N, NO3--N, SO42-, Pb và Fe2+) were selected for analysising. The analysis results indicate groundwater quality is divided into 4 categories in this study area. In particular, over 70% of wells are "very good" water quality in both dry and wet seasons. Only 6% of wells are " water unsuitable for drinking purpose" of the total number of mornitoring wells in the study area.

scholarly journals Physicochemical Analysis of Surface and Ground Water in Ugbomro and Iteregbi, Delta State, Nigeria

2020 ◽  
Vol 24 (3) ◽  
pp. 511-517
Author(s):  
O.B. Ovonramwen
Keyword(s):  
Oxygen Demand ◽  
Physicochemical Analysis ◽  
Total Alkalinity ◽  
World Health ◽  
Total Hardness ◽  
Need For Treatment ◽  
Environmental Status ◽  
Groundwater Samples ◽  
Health Organization ◽  
Surface And Groundwater

Physicochemical analyses of surface and groundwater samples from eleven different locations in Ugbomro and Iteregbi, Delta State, Nigeria were sampled and analyzed for physicochemical parameters according to standard methods for the examination of water and wastewater. The following  mean and standard deviation were obtained from the groundwater of the communities: temp (oC) 22.46 ± 0.50 and 23.23 ± 0.99, pH 6.63 ± 0.68 and6.69 ± 0.24, dissolved oxygen (DO) (mg/L) 5.91 ± 0.46 and 5.73 ± 0.46, chemical oxygen demand (COD) (mg/L) 4.24 ± 0.01 and 4.43 ± 0.10, biochemical oxygen demand (BOD) (mg/L) 3.51 ± 0.38 and 3.84 ± 0.21, Turbidity (NTU) 1.22 ± 1.07 and 3.56 ± 0.77, electrical conductivity (EC) (μs/cm) 748.9 ± 215.79 and 786.67 ± 226.77, color (TCU) 1.22 ± 2.12 and 6.11 ± 2.11, total alkalinity (TA) (mg/L) 6.22 ± 7.38 and 14.11 ± 11.19, HCO3- (mg/L) 6.22 ± 7.38 and 14.11 ± 11.19, NO3 - (mg/L) 1.13 ± 0.62 and 2.89 ± 1.25, total solids (TS) (mg/L) 489.09 ± 180.17 and 664.95 ± 373.37, total suspended solids (TSS) (mg/L) 32.25 ± 24.29 and 123.86 ± 82.79, total dissolved solids (TDS) (mg/L) 456.78 ± 163.73 and 542.20 ± 450.66, Cl- (mg/L) 21.20 ± 3.20 and 20.10 ± 3.89, total hardness (TH) (mg/L) 26.67 ± 22.83 and 46.78 ± 36.17, Na (mg/L) 1.26 ± 0.06 and 1.16 ± 0.04, K (mg/L) 0.04 ± 0.01 and 0.06 ± 0.03, Mg (mg/L) 4.32 ± 3.23 and 6.96 ± 5.49, Ca (mg/L) 8.68 ± 9.35 and 18.12 ± 13.71 respectively. The results obtained were subjected to statistical analysis and compared with the standard set by the Standards Organization of Nigeria (SON) and the World Health Organization (WHO) for water samples. Some of the parameters did not meet the standards, hence the need for treatment. The present physio-chemical analyses of surface and groundwater quality of the two neighboring university areas, Ugbomro and Iteregbi, were done to assess the environmental status of  the environment before socio-economic impacts. Keywords: physicochemical, surface water, groundwater, water quality

scholarly journals Study on the relationship between total dissolved solids (TDS) and electrical conductivity (EC) of the aquifers in Ca Mau province

2019 ◽  
Vol 19 (2) ◽  
pp. 303-311
Author(s):  
Trinh Hoai Thu ◽  
Tran Thi Thuy Huong ◽  
Dang Tran Trung
Keyword(s):  
Standard Error ◽  
Small Deviation ◽  
Middle Pleistocene ◽  
Pleistocene Aquifer ◽  
Groundwater Samples ◽  
Lower Pleistocene ◽  
The Cost ◽  
The Relationship ◽  
Regression Correlation

This article has established a set of empirical equations to describe the relationship between bulk resistivity and TDS of the Upper-Middle Pleistocene aquifer (qp2-3) and Lower Pleistocene aquifer (qp1) of the for field survey in 2017 in Ca Mau province. This article has determined the content of TDS based on EC (TDSEC) and established correlation regression equation between TDSLAB and TDS is based on the EC of the qp2-3 aquifer: Y = 0.549X – 0.081  with R2 = 0.975 and Standard Error (SE) = 0.1591. The qp1 aquifer: Y = 0.4669X + 0.0483 with R2 = 0.9869, Standard Error (SE) = 0.0949. Based on these regression correlation equations, we found a high correlation coefficient and small deviation between TDSLAB and TDSEC. Therefore, the determination of TDS content through the EC has reduced the cost of groundwater samples of the aquifers of laboratory analysis in Ca Mau province.

scholarly journals ANALYSIS OF PHYSICO CHEMICAL CHARACTERISTICS OF CAUVERY RIVER PALLIPALAYAM, ERODE DISTRICT,TAMILNADU

2020 ◽  
pp. 1-3
Author(s):  
S. Uthirasamy* ◽  
T. Chitra
Keyword(s):  
Water Resources ◽  
Dissolved Oxygen ◽  
River Water ◽  
Domestic Sewage ◽  
Total Alkalinity ◽  
Total Hardness ◽  
Chemical Characteristics ◽  
Cauvery River ◽  
Physico Chemical ◽  
Human Usage

This study was designed to assess the physico-chemical characteristics of Cauvery river three stations (S1- Domestic sewage release place, S2- Pooja waste release place and S3- People dress washing place. Erode. The parameters were analysed such as Temperature, pH, Colour, Odour, Turbidity, DO2, BOD, COD, Salinity, Total alkalinity and Total hardness. The pH ranged from (8.2 to 8.7), Dissolved oxygen (4.987 to 6.253mg/lit), BOD (13.768 to 17.564mg/lit), as recorded in S1 Place. COD (34.7 to 36.7mg/lit), Calcium (89 to 105mg/lit), Salinity (7.12 to 12.6mg/lit), as observed in S2 place. Total Alkalinity (164 to 198mg/lit), Nitrate (0.32 to 0.45mg/lit) and Phosphate (0.34 to 0.40mg/lit) as analyzed in S3 Place. The nding of the study revealed that the river water is polluted not advisable for human usage without any treatment. This study concluded that the seriousness and responsibility of public to conserve our water resources for healthy living.

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 A Study of Groundwater Characteristics by Using of Groundwater Quality Index and Pollution Index in Zubair District, Basra Province, Iraq

2018 ◽  
Vol 8 (1) ◽  
pp. 19-26
Author(s):  
Ammar S. Dawood ◽  
Mushtak T. Jabbar ◽  
Mudhar H. Gatea ◽  
Hayfaa J. Al-Tameemi
Keyword(s):  
Electrical Conductivity ◽  
Groundwater Quality ◽  
Quality Index ◽  
Calcium Nitrate ◽  
Pollution Index ◽  
Total Dissolved Solids ◽  
Total Hardness ◽  
Dissolved Solids ◽  
Groundwater Quality Index ◽  
Groundwater Samples

Abstract The present work evaluated the groundwater quality index (GWQI) depending on some physicochemical analyses of thirteen groundwater samples in the Zubair district in Basra Province, Iraq. The collected groundwater samples were subjected to an extensive physicochemical analysis to evaluate the characteristics of water for drinking purpose according to Iraqi standard. For calculating the (GWQI), twelve water quality parameters were considered; turbidity, pH, chloride, total dissolved solids, total hardness (TH), electrical conductivity (EC), sodium, sulphate, phosphate, calcium, nitrate, and magnesium. The analysis of the results reveals that all the samples surpassed the portability of drinking water limits. High values of the (GWQI) in the obtained groundwater samples could possibly be caused by the higher values of electrical conductivity, total hardness, chloride, total dissolved solids and sodium within the groundwater. The calculated GWQI values ranged from 73.36 to 595.92. The pollution index (PI) was calculated for the study area with values ranged from 2.97 to 8.26. Correlation coefficients amongst the chosen water parameters exhibited some strong relationships. Finally, the analysis shows that the groundwater in this particular area needs to be treated before its consumption, and in addition, it usually needs to avoid the hazard of contamination. Principal component analysis (PCA) and cluster analysis (CA) indicate that the acquiring-data from groundwater samples are explained 90.5 % of the variance in the data with a four-component system that explains a large portion of the total variance of collected data.

scholarly journals Assessment of Drinking Water Quality of Different Areas in Tehsil Isa Khel, Mianwali, Punjab, Pakistan

2021 ◽  
Vol 22 (2) ◽  
pp. 376-387
Author(s):  
Hizbullah Khan ◽  
Muhammad Najeeb Khan ◽  
Muhammad Sirajuddin ◽  
Syed Muhammad Salman ◽  
Muhammad Bilal
Keyword(s):  
Electrical Conductivity ◽  
Drinking Water ◽  
Chloride Ion ◽  
Integrated Approach ◽  
Total Alkalinity ◽  
Total Hardness ◽  
Safe Drinking Water ◽  
Ultimate Result ◽  
Very High

Water samples were collected from 43 sites of Tehsil Isa Khel areas in order to determine the physicochemical parameters such as pH, electrical conductivity, turbidity, total hardness, calcium hardness, magnesium hardness, M. alkalinity, chloride ion (Cl- ), and fluoride ion (F-) concentration. The obtained results show that in Tehsil Isa Khel, only in Kala Bagh city, Kala Bagh water scheme (w/s), Tola Bangi Khel w/s, Kot Chandna, Awan Wala, Gidran Wala, and Cheena Pora water is drinkable. Overall, electrical conductivity, hardness, total alkalinity, chloride, fluoride levels in the water of Tehsil Isa Khel are very high and not fit for drinking, washing, and industrial purpose. The ultimate result of this study is helpful to address the leading cause of public health problems related to the deteriorated quality of drinking water, and an integrated approach is therefore required to provide safe drinking water to people in Tehsil Isa Khel.

scholarly journals Effects of surface gold mining on surface and groundwater bodies in Bibiani, Ghana

2017 ◽  
Vol 37 (1) ◽  
pp. 9-24
Author(s):  
F. N. Gyawu-Asante ◽  
S. Aikins ◽  
R. B. Voegborlo
Keyword(s):  
Surface Water ◽  
Ground Water ◽  
Water Samples ◽  
Gold Mining ◽  
Water Sources ◽  
Total Alkalinity ◽  
Total Hardness ◽  
Groundwater Samples ◽  
Water Ph ◽  
Dug Wells

A study of the water sources from Bibiani and its environs was conducted between November, 2009 and April, 2010 to determine whether contamination (of water sources) from (these parameters) physical, chemical and trace metal in Bibiani is as a result of mining or geochemicaland biochemical processes within the environment. This was done by collecting water samples from two streams, two rivers, three boreholes (BHs) and three hand dug wells (HDWs). These were analysed in the laboratory. Levels of Arsenic (As), Iron (Fe), Manganese (Mn), pH, TotalDissolved Solids (TDS), Electrical Conductivity (EC), Temperature, Alkalinity, Hardness, Phosphate (P) and Cyanide (CN) in water sources were determined. Mining related contaminants detected in water samples were As, CN, Mn and Fe. It was observed that surface water pH values were generally higher than that of groundwater samples. As concentrations in surface water samples were higher compared to that of groundwater samples. Also, CN concentration in ground water samples was higher than that of surface water. Ground water contained higher concentration of Mn than surface water; the opposite can be said of Fe concentration in surfacewater which was higher than that of ground water. The study also observed that pH, TDS, EC, total alkalinity, total hardness , Arsenic and total cyanide levels in the HDW and BH samples showed 100% compliance with the WHO and EPA limits while Mn and Fe levels indicated traces of non – compliance. Compared to WHO / EPA guidelines, few water sources had one or moretrace metal (Fe, As and Mn) levels outside acceptable limits for drinking. However, most of the levels were safe for human consumption.Keywords: Surface, gold mining, quality, degradation, Bibiani

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