scholarly journals Groundwater Quality Assessment for Drinking Purpose in Gulistan-e-Johar Town, Karachi, Pakistan

Author(s):  
Adnan Khan ◽  
Muhammad Akif Khan

The main objective of present study is to evaluate the groundwater quality of Gulistan-e-Johar Town for drinking. For this purpose, groundwater samples (n=18) through electrically pumped wells were collected from shallow aquifers (mean depth = 36 m). Collected samples were subjected to determine the physical characters (TDS, pH, temperature), major (Na, K, Ca, Mg, Cl, SO 4 , HCO 3 , and NO 3 ) and minor ions (Fe, Mn and F). Data reveal very high content of TDS (mean: 2862 mg/L) coupled with elevated concentration of Na (mean: 974.6 mg/L), Cl (mean: 545.3mg/L), SO 4 (mean: 600mg/L), Mn (mean: 0.04 mg/L) and F (mean: 1.7 mg/L). The results indicated that groundwater of Gulistan-e-Johar is not suitable for drinking purpose and may lead to dangerous health impacts. The WQI value of groundwater is found to be 183 which is also endorsing that groundwater of Gulistan-e-Johar is unfit for drinking purpose.

2018 ◽  
Vol 7 (3.34) ◽  
pp. 428
Author(s):  
D Sivakumar ◽  
S Govindasami ◽  
J Asanammal Saral ◽  
D Arun ◽  
T Durai Arasu

Groundwater is generally used for various purposes, particularly domestic and industrial purposes in all over the world. Fresh water from groundwater sources is high in the recent years and the groundwater is polluted high because of rapid population and industrial growth. It is very difficult to restore the contaminated groundwater by various pollutants.  Hence, it is important to analyse physico-chemical parameters of groundwater for its need for various sectors. Therefore, the present study was under taken to define the quality of groundwater with the help of WQI. The ground water samples were collected from 20 different places around Ambattur Industrial Estate in Chennai city. The groundwater quality assessment showed that the water quality of bore wells around Ambattur Industrial Estate is poor for drinking purpose as per WQI for BIS acceptable limit.  WQI observed from those selected 20 groundwater bore wells are ranging from 63.30 to 219.63.   The analysis reveals that the groundwater from the Ambattur Industrial Estate needs pre-treatment before it is being used for various purposes.  


Geofluids ◽  
2019 ◽  
Vol 2019 ◽  
pp. 1-14 ◽  
Author(s):  
Giuseppe Sappa ◽  
Silvia Iacurto ◽  
Flavia Ferranti ◽  
Francesco M. De Filippi

This paper presents the results of a groundwater quality assessment carried out in the karst coastal region of the West Aurunci Mountains (Central Italy). 55 spring and 18 well water samples, collected from 2016 to 2018, were analysed to study the main processes controlling the hydrogeochemical evolution and groundwater quality properties. In the study area, groundwater samples are mostly characterized by a Ca-HCO3 facies, indicating that the groundwater hydrogeochemical evolution is mainly controlled by the carbonate mineral dissolution/precipitation. The cationic and anionic concentrations confirm that groundwater samples belong to the order of Ca2+>Mg2+>Na+>K+ and HCO3−>Cl−>SO42−, respectively. Well water samples show, over time, an increasing mineralization with respect to the spring water samples. In more detail, the enrichment of Ca2+, Na+, and Cl- in well water samples is mainly due to the dissolution of calcite, dolomite, and halite minerals and secondly to a probable ion exchange related to seawater intrusion. Seawater intrusion, probably affecting the chemical composition of well water samples, was studied using ionic ratios, graphical approaches, and specific indices, such as the BEX index. Results suggest that carbonate weathering, ion exchange, and seawater intrusion in this karst coastal region are the major factors controlling groundwater geochemistry. This study shows that groundwater quality assessment, based on hydrogeochemical investigation techniques, has been a useful tool to characterize and model carbonate aquifers in Central Italy, with the aim of achieving proper management and protection of these important water resources.


2020 ◽  
Vol 32 (5) ◽  
pp. 1128-1138
Author(s):  
Meenu Agarwal ◽  
Meenakshi Singh ◽  
Jakir Hussain

Water Quality Index (WQI) is a mathematical value for quality of water, which includes the concentration of a number of constituents present in it. Chemical and biological measures of water quality are used to represent water quality index. Measured value of the selected parameters, ideal concentration of that parameter in pure water and standard value given by different quality control organizations are used to determine this number. In the present study, three indexing methods; Weighted Arithmetic Water Quality Index (WAWQI), Groundwater Quality Index (GWQI) and Canadian Council of Ministers of the Environment Water Quality Index (CCME WQI) were used to calculate water quality index of groundwater. A hydrochemical analysis of 22 groundwater samples was conducted to evaluate the quality of groundwater for drinking purpose. Ten hydrochemical parameters were selected for computing WQIs of groundwater samples and BIS standards were used for standardization. Analytical results show that 100 % of samples have magnesium and total hardness above the acceptable limit of BIS (10500, 2012). The mean concentration of nitrate was found 196.96 ± 9.3.18 mg/L. Spatial distribution of various parameters shows that south-east part of study area has contaminated groundwater. The results of water quality index shows that drinking water quality of 82 % (WAWQI), 95 % (GWQI) and 77 % (CCME WQI) of groundwater samples were poor to unsuitable type. Water quality index map also reveals that groundwater of village Badhpura, Dhoom Manikpur, Dairy Maccha, Khera Dharampura, Bisrakh road, Duryai and Dujana of district Gautam Budh Nagar of India, was not fit for human consumption.


2018 ◽  
Vol 6 (4) ◽  
pp. 325-339
Author(s):  
Mamdouh Salama Morsi

The main goal of this research is assessment the groundwater resources for irrigation purposes at the western portion of the River Nile –Minia district- Egypt. The research depend on representation and calculation the resulted of chemical analysis of 96 groundwater samples collected from 96 pumping well During autumns 2011 from quaternary aquifer. the resulted reviled that; 25% of groundwater samples within the range of none restriction on use and the rest are margin according TDS content, most of samples are good for irrigation in all soils as they located in classes (C2-S1) and (C3-S1) and suitable for irrigation all crops as belong to SAR values and RSC hazard. But it restricted by boron ion concentration.


2021 ◽  
Author(s):  
Manoj Shanmugamoorthy ◽  
Anandakumar Subbaiyan ◽  
Lakshmanan Elango ◽  
Sampathkumar Velusamy

Abstract The present research deals with the Risk assessment of groundwater quality around 15 km radius surrounding SIPCOT industrial estate, Perundurai, Erode district. It is sub-divided into three segments with radius of 5 km each. 79 groundwater samples were collected from domestic and agricultural usage open and bore well points equally distributed (each 4 km distance) over the study area with help of toposheets, during January- 2021 (COVID-19 Pandemic Period). The groundwater samples were tested to determine the physio-chemical parameters using standard testing procedure which include Ca+2, Na+, pH, TA, EC, TDS, K+, TH, Mg2+, Fe2+/3+, HCO3−,F−, NO32−, SO42− and Cl− for the preparation of spatial distribution maps of each parameter based on WHO standard. Multivariate statistical analysis shown the source of groundwater pollution from secondary leaching of chemical weathering of rocks and minerals and fertilizers used agriculture lands and least percentage of industrials effluents due to the COVID-19 pandemic, not working for all industries during last 6 months. From the Water Quality Index, 18.06 % of the area comes under high and very high risk zone and bivariate plot NO3 Vs Cl reveals that 17.72 % of the samples are from the bad quality of groundwater. The types of hardness diagram showed 32.91% of the samples fall in hard brackish water as illustrated by the Piper trilinear diagram. The high and very high risk zones, was recommended to concern department to provide the good quality of water supply to the people.


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