Physico‐chemical characterization of littoral water of Lake Kivu (Southern basin, Central Africa) and use of water quality index to assess their anthropogenic disturbances

2021 ◽  
Author(s):  
Béni Lwikitcha Hyangya ◽  
Jacques Walumona Riziki ◽  
Pascal Mulungula Masilya ◽  
François Zagabe Zabene ◽  
Georges Lufungula Alunga ◽  
...  
Keyword(s):  
Water Quality ◽  
Water Quality Index ◽  
Quality Index ◽  
Central Africa ◽  
Chemical Characterization ◽  
Anthropogenic Disturbances ◽  
Southern Basin ◽  
Physico Chemical ◽  
Lake Kivu

scholarly journals Physico-chemical and microbiological characterization of the ground water across the city Bareilly (U.P.), India

2011 ◽  
Vol 3 (2) ◽  
pp. 315-318
Author(s):  
D. R. Khanna ◽  
Shivom Singh ◽  
Neetu Saxena ◽  
R. Bhutiani ◽  
Gagan Matta ◽  
...  
Keyword(s):  
Water Quality ◽  
Drinking Water ◽  
Water Quality Index ◽  
Quality Index ◽  
Underground Water ◽  
Total Hardness ◽  
Average Value ◽  
Physico Chemical ◽  
The City

The drinking water quality (underground water) of Bareilly city has been assessed by estimating physicochemical parameters and calculating Water Quality Index (WQI). Water Quality Index plays an important role in interpreting the information on water quality. The WQI of different sites shows that drinking water is of good quality. The correlation between different parameters was also estimated. During course of study the average value of physico-chemical parameters studied were observed as temperature 20.17 o C, turbidity 2.17 NTU, pH 8.13, electrical conductivity 1360 mmhos/cm, total dissolved solids 1218.9 mg/l, total hardness 515.0 mg/l chlorides 106.34 mg/l, alkalinity 342.15, fluorides 0.44 mg/l, sulphates 84.68 mg/l, nitrates 22.83 mg/l, DO 2.44 mg/l, BOD 1.26 mg/l. While average MPN were observed as 5.66 and average WQI as 21.48.

GEOPHYSICAL AND WATER QUALITY INDEX SURVEYS OF GROUNDWATER QUALITY AROUND UGBOR DUMPSITE IN BENIN CITY, EDO STATE, NIGERIA, WEST AFRICA.

2016 ◽  
Vol 12 (3) ◽  
pp. 4383-4393
Author(s):  
Osabuohien Idehen
Keyword(s):  
Water Quality ◽  
Groundwater Quality ◽  
Water Quality Index ◽  
Quality Index ◽  
Dry Season ◽  
Depth Range ◽  
Benin City ◽  
Physico Chemical ◽  
Vertical Electric Sounding ◽  
Geoelectric Layer

This study takes a look into groundwater quality at Ugbor Dumpsite area using water quality index (WQI), 2-Dimensional (2-D) geophysical resistivity tomography and vertical electric sounding (VES).The geophysical resistivity methods employed revealed the depth to aquifer, the geoelectric layers being made up of lateritic topsoil, clayed sand and sand. Along the trasverse line in the third geoelectric layer of lateral distance of 76 m to 100 m is a very low resistivity of 0.9 to 13 m from a depth range o f about 3 to 25 m beneath the surface- indicating contamination. Water samples were collected and analyzed at the same site during the raining season and during the dry season. The value of water quality index during the raining season was 115.92 and during the dry season was 147.43. Since values at both seasons were more than 100, it implies that the water is contaminated to some extent and therefore poor for drinking purpose. The Water Quality Index was established from important analyses of biological and physico-chemical parameters with significant health importance. These values computed for dumpsite area at Ugbor were mostly contributed by the seasonal variations in the concentrations of some parameters, such as, conductivity, total dissolved solids, hardness, alkalinity, chlorides, nitrates, calcium,  phosphates, zinc, which showed significant differences (P<0.01 and P<0.05) in seasonal variation.

scholarly journals Development of water quality index of ex-mining ponds in Malaysia

2019 ◽  
Vol 15 (1) ◽  
pp. 54-60 ◽  
Author(s):  
Isa Baba Koki ◽  
Sharifuddin Md Zain ◽  
Low Kah Hin ◽  
Azman Azid ◽  
Hafizan Juahir ◽  
...  
Keyword(s):  
Water Quality ◽  
Water Quality Index ◽  
Quality Index ◽  
Human Consumption ◽  
Chemical Parameters ◽  
Metal Pollutants ◽  
Physico Chemical ◽  
Klang Valley ◽  
Mining Water ◽  
Quality Status

In this paper, a study on the development  of water quality index of ex-mining ponds was carried out for proper assessment  and utilization of the abundant ex-mining ponds in Malaysia. Heavy metals were analyzed using inductively coupled plasma mass spectrophotometer (ICPMS), and physico chemical parameters were analyzed in-situ. Chemometric analysis was successfully applied for the parameter selection process. The water quality index of existing Malaysian river did not accommodate the toxic metal pollutants that dominanted in ex-mining water. The acceptable index should therefore incorporate the metal pollutants in order to evaluate the quality status of ex-mining water for human consumption which is the major point of consideration. Two water quality indices were developed to assess the water quality status of ex-mining ponds with reference to Malaysia’s water quality standard (INWQS). The heavy metal index was comprised of contribution from Pb, As, and Cd as the selected metals, while the physico-chemical parameter index has BOD, pH, DO, and AN. Chemometric analysis revealed the dominance of the selected heavy metals in ex-mining water, and physico-chemical parameters were important in water quality monitoring. Heavy metal water quality index revealed that most ex-mining ponds in Klang Valley were classified to be very poor hence could not be used for human consumption. Due to domestic input in some of the lakes in Klang Valley, the physico-chemical water quality index was in very poor status as well.  In Melaka and Negeri Sembilan, ex-mining ponds and lakes were classified as excellent in both indices.    

scholarly journals Drinking water quality assessment and water quality index of Riyadh, Saudi Arabia

2015 ◽  
Vol 50 (3) ◽  
pp. 287-296 ◽  
Author(s):  
Abdulrasoul Al-Omran ◽  
Fahad Al-Barakah ◽  
Abdullah Altuquq ◽  
Anwar Aly ◽  
Mahmoud Nadeem
Keyword(s):  
Water Quality ◽  
Drinking Water ◽  
Water Quality Index ◽  
Quality Index ◽  
Microbial Contamination ◽  
Water Quality Assessment ◽  
Main Zone ◽  
Class V ◽  
Physico Chemical ◽  
Drinking Water Samples

One hundred and eighty drinking water samples were collected from five zones of Riyadh governorate including Riyadh main zone, Ulia, Nassim, Shifa, and Badiah zones. The water was collected from the main water network and underground and upper household tanks in each zone. The water quality was found to be acceptable for drinking with respect to chemical characteristics; however, analyses exhibited some microbial contamination. The water quality index (WQI) is a mathematical method used to facilitate water quality explanation. The WQI was calculated using several physico-chemical and microbial parameters. The results showed that more than 88% of Riyadh main zone, 91% of Ulia, 97% of Nassim, 88% of Shifa, and 100% of Badiah waters zones were considered excellent for drinking (class I). The remaining waters were considered unsuitable for drinking (class V) due to microbial contamination.

Water Quality Characterization of the Siling Reservoir (Zhejiang, China) Using Water Quality Index

2016 ◽  
Vol 44 (5) ◽  
pp. 553-562 ◽  
Author(s):  
Naveedullah Naveedullah ◽  
Muhammad Zaffar Hashmi ◽  
Chunna Yu ◽  
Chaofeng Shen ◽  
Niaz Muhammad ◽  
...  
Keyword(s):  
Water Quality ◽  
Water Quality Index ◽  
Quality Index

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

scholarly journals Determination of Some Physico-Chemical Parameters and Water Quality Index (WQI) of Laguna de Bay, Philippines

2020 ◽  
pp. 1-6
Author(s):  
Jessa Marie S. Caabay S. Caabay
Keyword(s):  
Water Quality ◽  
Water Quality Index ◽  
Quality Index ◽  
Water Quality Monitoring ◽  
The Philippines ◽  
Quality Monitoring ◽  
Critical Element ◽  
Index Method ◽  
Physico Chemical ◽  
Laguna De Bay

Water quality monitoring activities is a vital part in assessing the status of certain bodies of water such as the Laguna de Bay. The lake has been a significant natural resource as a catchment of an expansive watershed providing various ecological and economic values. It is the largest inland water body in the Philippines and the third largest in South East Asia. Water quality monitoring network is a critical element in the assessment, restoration and protection of Laguna de Bay. This paper measured some important physico-chemical properties of four selected sites from Laguna de Bay such as temperature, pH, electrical conductivity, alkalinity, dissolved oxygen levels, and phosphate and ammonia concentrations. Water Quality Index (WQI) utilizing Weighted Arithmetic Water Quality Index Method was also evaluated.

scholarly journals Water Quality Index (WQI) Approach to Evaluate the Water Quality of Certain Tank Waters of Tiptur Taluk in Tumkur District, Karnataka, India

2015 ◽  
Vol 10 (1) ◽  
pp. 189-198
Author(s):  
A Shivanna ◽  
G Nagendrappa
Keyword(s):  
Water Quality ◽  
Water Quality Index ◽  
Quality Index ◽  
Poor Quality ◽  
The Public ◽  
Run Off ◽  
Physico Chemical ◽  
Investigation Period ◽  
The Impact

Evaluation of water quality using different parameters is complex and not easy to understand as it is variable by variable discussion. Water quality index is a single value indicator used to evaluate and present the water quality to the public and the related management in precise and understandable manner. Measured values of eleven physico-chemical parameters namely, pH, TDS, TH, Cl-,NO3-,SO42-,HCO3-, Ca2+, Mg2+, Na+ and K+ were used to calculate WQI of six tanks in Tiptur taluk. The study was taken up to understand the impact of agriculture run off from the respective catchment area, domestic sewage input and human activities which contribute to pollution load. During the investigation period from December-2010 to November-2012, it was found that the overall water quality index of the studied tanks ranged from 46.72 to 92.22 indicating the quality ranging from good quality to very poor quality. Values of variables TDS, HCO3-, Na+ and K+exceeded their desirable limits of BIS/ICMR in Karadi, Halkurke and Honnavalli tanks which depend on rain water. Waters in these tanks were of moderately poor to very poor quality. Waters of Canal fed tanks were of good to moderately poor quality.

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