scholarly journals Recreational Water Quality Index (RWQI) for Colina Lake in Chihuahua, Mexico

2016 ◽  
Vol 26 (3) ◽  
pp. 14-22 ◽  
Author(s):  
Héctor Osbaldo Rubio-Arias ◽  
Nora Ivet Rey-Burciaga ◽  
Rey Manuel Quintana ◽  
Jesús Manuel Ochoa-Rivero ◽  
Rubén Alfonso Saucedo-Terán ◽  
...  
Keyword(s):  
Water Quality ◽  
Electrical Conductivity ◽  
Water Quality Index ◽  
Quality Index ◽  
Total Dissolved Solids ◽  
Fecal Coliforms ◽  
Total Hardness ◽  
Recreational Water ◽  
Sampling Depth ◽  
Recreational Water Quality

Recreational water use provides important benefits for human health; nevertheless, there can be adverse effects if the water is polluted. Aim of this work was to develop a Recreational Water Quality Index (RWQI) for Colina Lake in Mexico. Water samples were collected from March 2011 to February 2012 at seven random locations and at three depths (0.30 m, 1.0 m and 2.0 m). Parameters analyzed were pH, electrical conductivity (EC), total dissolved solids (TDS), dissolved oxygen (DO), temperature (T), turbidity, total hardness (TH) chlorides (Cl-) and total (TC) and fecal coliforms (FC). Statistical analyses were made considering a 12↔3 factorial arrangement design while the RWQI was calculated for the 0.30 m depth. In general, results for parameters did not differ according to sampling depth or the interaction, but there were statistical differences according to sampling month. The RWQI indicates that water quality is generally adequate for recreational purposes. 

scholarly journals Assessment of Water Quality Index for the Groundwater in Tumkur Taluk, Karnataka State, India

2009 ◽  
Vol 6 (2) ◽  
pp. 523-530 ◽  
Author(s):  
C. R. Ramakrishnaiah ◽  
C. Sadashivaiah ◽  
G. Ranganna
Keyword(s):  
Water Quality ◽  
Water Quality Index ◽  
Quality Index ◽  
Total Dissolved Solids ◽  
Physicochemical Analysis ◽  
Total Hardness ◽  
Dissolved Solids ◽  
Groundwater Samples ◽  
Calcium Magnesium ◽  
Iron Manganese

The present work is aimed at assessing the water quality index (WQI) for the groundwater of Tumkur taluk. This has been determined by collecting groundwater samples and subjecting the samples to a comprehensive physicochemical analysis. For calculating the WQI, the following 12 parameters have been considered: pH, total hardness, calcium, magnesium, bicarbonate, chloride, nitrate, sulphate, total dissolved solids, iron, manganese and fluorides. The WQI for these samples ranges from 89.21 to 660.56. The high value of WQI has been found to be mainly from the higher values of iron, nitrate, total dissolved solids, hardness, fluorides, bicarbonate and manganese in the groundwater. The results of analyses have been used to suggest models for predicting water quality. The analysis reveals that the groundwater of the area needs some degree of treatment before consumption, and it also needs to be protected from the perils of contamination

scholarly journals DETERMINATION OF THE WATER QUALITY INDEX (WQI) OF A FRESH WATER STREAM (Mini-Whuo) ELIOZU, RIVERS STATE, NIGERIA.

2020 ◽  
Vol 45 (5) ◽  
Author(s):  
I.R. ALLISON ◽  
C.C. OBUNWO ◽  
G.A. COOKEY ◽  
O.S. BULL
Keyword(s):  
Water Quality ◽  
Electrical Conductivity ◽  
Heavy Metal ◽  
Physicochemical Properties ◽  
Water Quality Index ◽  
Quality Index ◽  
Total Dissolved Solids ◽  
Coliform Bacteria ◽  
Poor Water Quality ◽  
Rivers State

In order to assess the potability and agricultural application of Mini-Whuo stream in Eliozu Port Harcourt, Rivers State, Nigeria; the physicochemical properties, heavy metal levels (Fe, Cr, Cd, Pb & Ni) and microbiological load of water were evaluated. Five stations were established and sampling made for a period of six months (May-October 2019). Various water samples were collected for the analysis of physicochemical properties, heavy metal and microbiological levels, using titrimetric, spectrophotometric and microbiological methods respectively. Results obtained from the analyses showed that, temperature ranged between (28.7±0.7-30.9±1.9ºC), pH (6.4±0.0-6.7±0.3), electrical conductivity (82±20-172.0±14 µS/cm), total dissolved solids (41±1-86.5±71.1mg/l), turbidity (8.1±1.6-18.1±2.8 NTU), chloride (5.60±1.63-7.76±0.96 mg/l). Levels of heavy metals analyzed for water were below detection limit of 0.01mg/l, except for Fe which ranged between (3±1-4.6±0.8 mg/l). Microbiological study of water showed that the water had (2.6±0.5-6.4±0.6 x103 cfu/MLN) count of total heterotrophic bacteria, (44.3±9- 323.8±44 MPN/100ml-1) count of total coliform bacteria count and (4.3±2.7-59.5±16.9 MPN/100ml-1) faecal coliform bacteria count. From the result of analyses it was observed that iron, dissolved oxygen, electrical conductivity, total dissolved solids, and the microbiological load of the water were high when compared with WHO standards, and this may be attributed to the disposal of wastes such as, human and animal wastes into the water body. Water quality index (WQI) method according to the weighted arithmetic WQI, where (WQI < 50 = excellent water quality), (50 > WQI < 100 = good water quality), (100 > WQI < 200 = poor water quality), (200 > WQI < 300 = very poor water quality), and (WQI > 300 = unfit for drinking). Based on the WQI calculated for the Mini-Whuo stream 1156, the stream is not suitable for domestic use.

scholarly journals USE OF OVERALL INDEX OF POLLUTION AND WATER QUALITY INDEX TO ASSESS RANI POND AT AURANGABAD, BIHAR, INDIA

2020 ◽  
Vol 21 (supplement 1) ◽  
Author(s):  
Sunita K Sharma ◽  
Vikash K Ravi ◽  
Sandeep Kumar ◽  
Dina N Pandit
Keyword(s):  
Water Quality ◽  
Electrical Conductivity ◽  
Water Quality Index ◽  
Quality Index ◽  
Anthropogenic Activities ◽  
Oxygen Demand ◽  
Total Dissolved Solids ◽  
Total Alkalinity ◽  
Dissolved Solids ◽  
Overall Index Of Pollution

The present work was carried out to apply overall index of pollution and water quality index to assess status of Rani Pond, Aurangabad, Bihar, India which has been under pressure due to the increasing anthropogenic activities. Physicochemical parameters like water temperature, pH, electrical conductivity, dissolved oxygen, total alkalinity, hardness, total dissolved solids, biochemical oxygen demand chloride, fluoride and nitrate were analyzed using standard procedures. The values obtained were compared with the guidelines for drinking purpose suggested by BIS (2012). The result shows the higher concentration of electrical conductivity, hardness, total dissolved solids and fluoride beyond the permissible limit. Ten parameters were selected to derive the overall index of pollution and water quality index for the estimation of water potential. The range of 2.70-3.50 of overall index of pollution and 165.83- 224.58 of water quality index indicating that the water of Rani Pond is not fit for drinking including both human and animals. The implementation of overall index of pollution and water quality index is necessary for proper management of the Rani Pond and it will be a very helpful tool for the public and decision makers to evaluate the water quality of the Rani Pond for sustainable management.

scholarly journals Evaluation of Groundwater Quality Suitability for Drinking Purpose Using Water Quality Index Approach in Yarmouk Basin, Jordan

2018 ◽  
Vol 1 (2) ◽  
pp. 84-92
Author(s):  
Mohamad Ibrahim *
Keyword(s):  
Water Quality ◽  
Groundwater Quality ◽  
Water Quality Index ◽  
Quality Index ◽  
Total Dissolved Solids ◽  
Total Hardness ◽  
Chemical Parameters ◽  
Index Approach ◽  
Yarmouk Basin ◽  
Physical And Chemical

Groundwater quality is an issue of national concern in Jordan since it is the main water source for drinking, agriculture and industrial purposes. In this context, an attempt has been made to determine the suitability of groundwater in the Yarmouk Basin in Jordan for drinking purposes using the weighted arithmetic water quality index approach with the respect to the Jordanian standards for drinking water. Groundwater quality records from 15 sampling stations spread across Yarmouk Basin during 2008- 2015 are used. Seven physical and chemical parameters are selected to calculate the water quality index. These parameters are pH, total dissolved solids, total hardness, sulfates (SO4 −2 ), chlorides (Cl− ), nitrates (NO3 − ), and sodium (Na+ ). The relationship between the selected groundwater quality parameters is evaluated using the correlation coefficient. A strong relationship is found between several parameters such as Cl− with Na+ , total dissolved solids with Na+ , Cl− , TH and SO4 −2 and total hardness with SO4 −2. A moderate relationship is found between SO4 −2 with Na+ , TH with Cl− and Na+ , SO4 −2 with Cl− , Cl− with NO3 − and NO3 − with Na+ . Also, the mean concentration values of the physical and chemical parameters are almost below the maximum allowable level based on Jordanian standards for drinking except for two sampling locations. According to water quality index scale classification, the groundwater quality of the studied locations is in the excellent to poor water range with computed mean water quality index values range from 26.3 to 107.93. Out of 15 studied locations, ten locations are classified in the ‘Excellent water’ class, four locations as a “Good water” class, one as a “Poor water” class. None of the studied locations are classified in the “Very poor water” class and “Water unsuitable for drinking purpose” class. Temporal variations and spatial distribution of groundwater quality in Yarmouk Basin based on WQI are also evaluated. The WQI spatial distribution map clearly showed the best locations for drinking water in the Yarmouk Basin. Water quality indices are used to provide theoretical support to water managers and policymakers for proper actions on groundwater quality management

scholarly journals Investigation of water quality in Ambur city by water quality indexing

2020 ◽  
Vol 10 (2) ◽  
pp. 48-52
Author(s):  
K. Mohiuddin Farooqui ◽  
Santosh Kumar Sar ◽  
Vijita Diwan
Keyword(s):  
Water Quality ◽  
Ground Water ◽  
Water Samples ◽  
Water Quality Index ◽  
Quality Index ◽  
Tamil Nadu ◽  
Total Dissolved Solids ◽  
Total Hardness ◽  
Ground Water Quality ◽  
Dissolved Solids

Present study is carried out for the assessment of ground water quality and comparing its suitability for drinking purpose in Ambur city in Tirupattur District, Tamil Nadu, India. Water quality index is calculated on the basis of pH, conductivity, total dissolved solids, total hardness, Ca2+, Mg2+, Na+, K+, Cl-, alkalinity, and SO42- content of the water samples. Water quality index study show that the ground water quality of the study area is deteriorated due to high value of total dissolved solids, conductivity, total hardness, calcium, magnesium, chloride, and sulphate in water samples.

A recreational water quality index using chemical, physical and microbiological parameters

2012 ◽  
Vol 19 (8) ◽  
pp. 3400-3411 ◽  
Author(s):  
César Almeida ◽  
Soledad Oliva González ◽  
Miguel Mallea ◽  
Patricia González
Keyword(s):  
Water Quality ◽  
Water Quality Index ◽  
Quality Index ◽  
Recreational Water ◽  
Recreational Water Quality ◽  
Microbiological Parameters

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

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.

scholarly journals Evaluation of Groundwater Using an Integrated Approach of Entropy Weight and Stochastic Simulation: A Case Study in East Region of Beijing

2021 ◽  
Vol 18 (14) ◽  
pp. 7703
Author(s):  
Yongxiang Zhang ◽  
Ruitao Jia ◽  
Jin Wu ◽  
Huaqing Wang ◽  
Zhuoran Luo
Keyword(s):  
Water Quality ◽  
Stochastic Simulation ◽  
Water Quality Index ◽  
Quality Index ◽  
Integrated Approach ◽  
Total Hardness ◽  
Chemical Components ◽  
Wet Season ◽  
Entropy Weight ◽  
Weakly Alkaline

Groundwater is an important source of water in Beijing. Hydrochemical composition and water quality are the key factors to determine the availability of groundwater. Therefore, an improved integrated weight water quality index approach (IWQI) combining the entropy weight method and the stochastic simulation method is proposed. Through systematic investigation of groundwater chemical composition in different periods, using a hydrogeochemical diagram, multivariate statistics and spatial interpolation analysis, the spatial evolution characteristics and genetic mechanism of groundwater chemistry are discussed. The results show that the groundwater in the study area is weakly alkaline and low mineralized water. The south part of the study area showed higher concentrations of total dissolved solids, total hardness and NO3−-N in the dry season and wet season, and the main hydrochemical types are HCO3−-Ca and HCO3−-Ca-Mg. The natural source mechanism of the groundwater chemical components in Chaoyang District includes rock weathering, dissolution and cation exchange, while the human-made sources are mainly residents and industrial activities. Improved IWQI evaluation results indicate that water quality decreases from southwest to northeast along groundwater flow path. The water quality index (WQI) method cannot reflect the trend of groundwater. Sensitivity analysis indicated that the improved IWQI method could describe the overall water quality reliably, accurately and stably.

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 Assessment of Groundwater Quality of Ilorin Metropolis using Water Quality Index Approach

1970 ◽  
Vol 12 (1) ◽  
pp. 18-21
Author(s):  
JA Olatunji ◽  
OA Odediran ◽  
RI Obaro ◽  
PI Olasehinde
Keyword(s):  
Water Quality ◽  
Water Quality Index ◽  
Quality Index ◽  
Chemical Properties ◽  
Total Hardness ◽  
Physico Chemical ◽  
Index Approach ◽  
Two Samples ◽  
Total Dissolved Solid

Groundwater as a source of potable water is becoming more important in Nigeria. Therefore, the need to ascertain the continuing potability of the sources cannot be over emphasised. This study is aimed at assessing the quality of selected groundwater samples from Ilorin metropolis, Nigeria, using the water quality index (WQI) method. Twenty two water samples were collected, 10 samples from boreholes and 12 samples from hand dug wells. All these were analysed for their physico – chemical properties. The parameters used for calculating the water quality index include the following: pH, total hardness, total dissolved solid, calcium, fluoride, iron, potassium, sulphate, nitrate and carbonate. The water quality index for the twenty two samples ranged from 0.66 to 756.02 with an average of 80.77. Two of the samples exceeded 100, which is the upper limit for safe drinking water. The high values of WQI from the sampling locations are observed to be due to higher values of iron and fluoride. This study reveals that the investigated groundwaters are mostly potable and can be consumed without treatment. Nonetheless, the sources identified to be unsafe should be treated before consumption.KEYWORDS: groundwater, water quality index, potability, physico - chemical, parameter

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