Use of geographic information system and water quality index to assess suitability of groundwater quality for drinking purposes in Hewane areas, Tigray, Northern Ethiopia

Bairu, Abraham; Tadesse, Nata; Amare, Sahleselassie

doi:10.4314/ejesm.v6i2.1

Cited by 13 publications

(11 citation statements)

References 13 publications

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“…To overcome this problem of diversity in parameteric values all the rasters have been classsified as per WHO standard classification. This three-classes scheme of WHO for each of the parameters has been used by a number of researchers for groundwater quality assessment (Bairu et al, 2013;Latha et al, 2012;Abulhakeem et al, 2011;Balakrishnan et al, 2011;Singh et al, 2011;Latha et al, 2010).…”

Section: Resultsmentioning

confidence: 99%

Appraisal of Drinking Water Quality in Lahore Residence, Pakistan

Mahmood

Asim²

2017

Pak. j. sci. ind. res. Ser. A: phys. sci.

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A comprehensive study for the spatial distribution of drinking water quality had been conductedfor residential area of Lahore, Pakistan. The study had made use of the geographic information system(GIS) for geographical representation and spatial analysis of groundwater quality. Physicochemicalparameters including electric conductivity, pH, TDS, Cl, Mg, Ca, alkalinity and bicarbonates from 73 ofthe water samples had been included in the analysis. Water quality data had been geo-referenced followedby its interpolation using inverse distance weighted (IDW) for each of the parameters. Very high alkalinityand bicarbonates values were observed in most parts of the area. For the comprehensive view, water qualityindex map had been prepared using weighted overlay analysis (WOA). The water quality index map wasclassified into five zones of excellent, good, poor, very poor and unfit for drinking as per WHO standardsof drinking water. 21% region had excellent quality of the underground water and 50% was found goodfor drinking. Poor quality of water was found in southeastern part, covering 27% of the study area. Only2% of the area was found under the very poor and unfit water quality conditions for drinking.

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Section: Resultsmentioning

confidence: 99%

Appraisal of Drinking Water Quality in Lahore Residence, Pakistan

Mahmood

Asim²

2017

Pak. j. sci. ind. res. Ser. A: phys. sci.

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“…WQI mapping under the structure of the WQI is very important for water quality management. Many researchers have successfully assessed water quality worldwide by using WQI and geographical information systems (GIS) (Srivastava et al, 2011;Bairu et al, 2013;Magesh and Chandrasekar, 2013;Sadat-Noori, 2014;Selvam et al, 2014;).…”

Section: Various Methods Have Been Establishedmentioning

confidence: 99%

Doğu Trakya Bölgesi’nde Yeraltı Suyu Kalitesinin Araştırılması Amacıyla Coğrafi Bilgi Sistemi Yardımı ile Su Kalite İndeksi Uygulaması

Arkoç¹

2016

Jeoloji Mühendisliği Dergisi

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Water quality assessment has always been a major part of environmental management plans. In this study, the groundwater quality and spatial distribution in the eastern Thrace region was assessed and mapped for agricultural and drinking purposes. Groundwater samples (n = 18) were collected from deep wells in the study area and analyzed for hydrochemical properties for the water quality assessment. The Water Quality Index (WQI) was calculated for the quantification of water quality for human consumption.The WQI values showed that 52 % of the groundwater samples fall in the "poor" and "very poor" category due to agricultural impact. Nevertheless, the majority of the groundwater were suitable for irrigation in terms of sodium absorption ratio (SAR), residual sodium carbonate (RSC), sodium ratio (Na%) and magnesium hazard (MH).Keywords: Geographical Information System, Groundwater, Thrace, Water Quality Index. ÖZ

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“…This interpolation method assumes that each point has a local influence that decreases with distance. Many researchers used (IDW) interpolation to create the water quality index maps [7,23,[60][61][62]. The maps of the spatial distribution of the pH, EC, TDS, TH, anions and cations, and WQI for the study area have been created to help water resources management and decision making.…”

Section: The Spatial Analysismentioning

confidence: 99%

Evaluation of the quality of groundwater for its appropriateness for drinking purposes in the watershed of Naâma, SW of Algeria, by using water quality index (WQI)

Derdour¹,

Ali

Sari

2020

SN Appl. Sci.

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Naâma watershed is situated in the southwest of Algeria, where the climate is arid. It is highly dependent on groundwater resources, which are the only available resources for irrigation and domestic purposes. The study was carried out to assess groundwater appropriateness in the study area for drinking uses through a water quality index (WQI) and geographic information system (GIS). Fourteen (14) groundwater samples were collected, and several physicochemical parameters such as electrical conductivity (EC), potential for hydrogen (pH), total dissolved solids (TDS), cations (Ca, Mg, Na, K), and anions (SO4, NO2, HCO3, Cl) were analyzed. The results report that the different water quality parameters were within the permissible limit given by the World Health Organization and Algerian Standards guidelines, except for some boreholes near the Sabkha of Naâma. Eleven (11) parameters were chosen to compile the water quality index. The results showed that 50% of groundwater sites sampled in the study area had excellent water quality, while 50% were suitable. By carefully examining the data, it was revealed that boreholes distant from Sabkha present an excellent groundwater quality, where the WQI ranges between 37 and 41.6 mg/L. On the other hand, the boreholes close to Sabkha are characterized by a high concentration of electrical conductivity, TDS, sodium, and sulfates, explained by the contamination of the surrounding area through the infiltration of salt elements from the Sabkha. This salt contamination of groundwater would be accentuated by the discharge of wastewater from Naâma town into the Sabkha, the irrational use of chemical fertilizers, pesticides, and intensive pumping. The spatial distribution of the physicochemical parameters and water quality index was generated using the inverse distance weighted interpolation method (IDW). This study demonstrates that the combination of WQI and GIS methods could be a helpful tool for water resources management and decision making.

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Use of geographic information system and water quality index to assess suitability of groundwater quality for drinking purposes in Hewane areas, Tigray, Northern Ethiopia

Cited by 13 publications

References 13 publications

Appraisal of Drinking Water Quality in Lahore Residence, Pakistan

Appraisal of Drinking Water Quality in Lahore Residence, Pakistan

Doğu Trakya Bölgesi’nde Yeraltı Suyu Kalitesinin Araştırılması Amacıyla Coğrafi Bilgi Sistemi Yardımı ile Su Kalite İndeksi Uygulaması

Evaluation of the quality of groundwater for its appropriateness for drinking purposes in the watershed of Naâma, SW of Algeria, by using water quality index (WQI)

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