scholarly journals Assessment of heavy metals concentration in drinking water samples from selected areas of Kauru Local Government Area of Kaduna State, Nigeria

2018 ◽  
Vol 10 (1) ◽  
pp. 509
Author(s):  
Dogara Kantoma ◽  
James Yusuf ◽  
Manaseh Yakubu Bidam
Keyword(s):  
Heavy Metals ◽  
Drinking Water ◽  
Local Government ◽  
Water Samples ◽  
Local Government Area ◽  
Drinking Water Samples

scholarly journals Assessment of Some Heavy Metals in Drinking Water Samples of Tunceli, Turkey

2011 ◽  
Vol 8 (1) ◽  
pp. 276-280 ◽  
Author(s):  
Olcay Kaplan ◽  
Nuran Cikcikoglu Yildirim ◽  
Numan Yildirim ◽  
Nilgun Tayhan
Keyword(s):  
Heavy Metals ◽  
Drinking Water ◽  
Water Samples ◽  
World Health ◽  
Environment Protection ◽  
Protection Agency ◽  
Supply Networks ◽  
Health Organization ◽  
The City ◽  
Drinking Water Samples

The drinking water quality is associated with the conditions of the water supply networks, the pollution and the contamination of groundwater with pollutants of both anthropogenic and natural origin. In this study, water samples were taken from four different waterworks in Tunceli, Turkey and heavy metals concentrations (As, Cu, Cd, Cr, Pb, Ni and Hg) were measured. Four sampling sites were pre-defined in different locations of the city. The obtained results showed that, the heavy metals concentrations in water samples did not exceed the values of WHO (World Health Organization), EC (Europe Community), EPA (Environment Protection Agency) and TSE-266 (Turkish Standard) guidelines.

Risk estimation and multivariate statistical analysis of the heavy metal content of drinking water samples

2018 ◽  
Vol 34 (10) ◽  
pp. 714-725
Author(s):  
Rajan Jakhu ◽  
Rohit Mehra
Keyword(s):  
Heavy Metals ◽  
Heavy Metal ◽  
Drinking Water ◽  
Statistical Analysis ◽  
Water Samples ◽  
Multivariate Statistical Analysis ◽  
Inductively Coupled Plasma ◽  
Principal Component ◽  
Multivariate Statistical ◽  
Drinking Water Samples

Drinking water samples of Jaipur and Ajmer districts of Rajasthan, India, were collected and analyzed for the measurement of concentration of heavy metals. The purpose of this study was to determine the sources of the heavy metals in the drinking water. Inductively coupled plasma mass spectrometry was used for the determination of the heavy metal concentrations, and for the statistical analysis of the data, principal component analysis and cluster analysis were performed. It was observed from the results that with respect to WHO guidelines, the water samples of some locations exceeded the contamination levels for lead (Pb), selenium (Se), and mercury (Hg), and with reference to the EPA guidelines, the samples were determined unsuitable for drinking because of high concentrations of Pb and Hg. Using multivariate statistical analysis, we determined that copper, manganese, arsenic, Se, and Hg were of anthropogenic origin, while Pb, copper, and cadmium were of geogenic origin. The present study reports the dominance of the anthropogenic contributions over geogenics in the studied area. The sources of the anthropogenic contaminants need to be investigated in a future study.

scholarly journals Analysis of heavy metals and coliform in samples of drinking water collected from municipal ward offices of western suburbs of Mumbai, India

2014 ◽  
Vol 15 (1&2) ◽  
pp. 99-107
Author(s):  
G.V Zodape
Keyword(s):  
Heavy Metals ◽  
Drinking Water ◽  
Water Samples ◽  
Fecal Contamination ◽  
E Coli ◽  
Metallic Sheen ◽  
Differential Medium ◽  
Drinking Water Samples

14 drinking water samples were collected from Vile Parle to Dadar of Suburban’s of (P-South ward offices of B.M.C (Bombay Municipal Corporation) Mumbai in the month from June to December 2012. The samples of drinking-water were analyzed for Cu, Zn, Mn, Fe, As, Cr, Ni, Pb, Cd and Hg. From the results so obtained, the contamination due to heavy metals – Zn (3.115 ppm and 7.816 ppm), Mn (3.115 ppm and 7.426 ppm), Fe (1.124 ppm and 2.872 ppm), As (0.011 ppm to 0.091 ppm), Cr (0.188 ppm and 0.998 ppm ), Pb (1.587 ppm and 4.56 ppm) and Cd (0.011 ppm and 0.051 ppm ) was found to be high whereas the contamination due to Cu (0.012 ppm and 0.313 ppm), Ni (0.126 ppm and 0.774 ppm), were found below the acceptable limits and no Hg was detected in the samples of drinking-water. In the present work, MacConkey Broth was used as a differential medium for detection and enumeration of coliforms from a wide variety water samples. The presence of positive doubtful presumptive test immediately suggests that the water is non potable (i.e., both acid and gas develops in a tube after 48 hours incubation). Confirmation suggests that there is fecal contamination in the water under investigation and hence it is non potable. All the fourteen samples (streaked from positive Ma cConkey broth tubes) were found to be contaminated with E. coli, which was further confirmed by the presence of colonies with green metallic sheen observed under a microscope confirmed that the said samples were contaminated with E. coli - the major indicator of fecal contamination.

scholarly journals Assessment of Heavy Metals in Water Contaminated with Petroleum Products in Keffi Local Government Area, Nasarawa State, Nigeria.

2020 ◽  
Vol 3 (3a) ◽  
pp. 38-45
Author(s):  
JK Makpo ◽  
SM Ameh ◽  
A Asarya ◽  
YP Gambo
Keyword(s):  
Heavy Metals ◽  
Heavy Metal ◽  
Local Government ◽  
Water Samples ◽  
Petroleum Products ◽  
Local Government Area ◽  
World Health ◽  
P Value ◽  
Contaminated Water ◽  
Significant Difference

This work assessed the presence of heavy metals in water contaminated with petroleum products in Keffi Local Government Area. Two water sampling station were selected based on the stratified method of sampling of Antau River. Station A is located along Federal Government College Keffi popularly known as Antau Bridge where Agricultural and mechanical activities, with sales of petroleum product take place. Station B was located at Dadin Kowa known as Gada Manu where human activities such as bathing and washing takes place which served as control. The distance between stations is 1km. The procedural plan of this study was monthly sampling of water from both Stations. Materials such as funnel, sampling container, distilled water, conical flask, filter paper, 50ml polypropylene centrifuge tube, cooler were used. Heavy metal concentration was determined using X – ray Fluorescent Spectroscopy (XRF) at the Center for Energy Research and Training (CERT), Ahmadu Bello University Zaria. The water parameters of the four samples were determined using the Extech instrument. The result on Physico – chemical parameters revealed the values obtained from contaminated water samples to be pH (7.31), Dissolved Oxygen (1.14), Electrical Conductivity (8.22), Total Dissolved Solid (4.13), Temperature (27.45) and Salinity (0.091) while the controlled Station at point B were pH (7.43), DO (7.35), EC (3.14), TDS (1.54), Temperature (26.75), Salinity (0.o94) respectively. From the result obtained, the heavy metal contaminated samples had the following values: Mg (29.31±), Al (218.69±), Si (230.12±), S (1153.65±), Cl (54.25±), Ca (106.56±), Ti (23.66±), Cr (3.15±), Fe (15.92±), Cd (7.54±). For the control sample at point B, the following values were obtained: Mg (27.49±), Al (223.71±), Si (243.21±), S (94.84±), Cl (23.52±), Ca (28.44±), Ti (32.99±), Fe (16.63±), Cd (7.67±) respectively. The P-value was 0.8105 (p>0.05) for the water quality parameters while for the concentration of heavy metal P-value was 0.2054 (p>0.05). This implies that there was no significant difference between the concentrations of elements. However, the concentration values of heavy metals in the contaminated water at Station A and control water samples at Station B were higher than the World Health Organization values (Standard) for drinking water

scholarly journals Ultra-portable, smartphone-based spectrometer for heavy metal concentration measurement in drinking water samples

2021 ◽  
Vol 11 (11) ◽  
Author(s):  
Satyam Srivastava ◽  
Vinay Sharma
Keyword(s):  
Heavy Metals ◽  
Heavy Metal ◽  
Drinking Water ◽  
Data Collection ◽  
Metal Concentration ◽  
Water Samples ◽  
Heavy Metal Concentration ◽  
Concentration Measurement ◽  
Visible Radiation ◽  
Drinking Water Samples

AbstractHeavy metals are very toxic and hazardous for human health. Onsite screening of heavy metal contaminated samples along with location-based automation data collection is a tedious job. Traditionally high-end equipment’s such as gas chromatography mass spectrometer (GC–MS) and atomic absorption spectrometers have been used to measure the concentration of different heavy metals in water samples but most of them are costly, bulky, and time consuming, and requires expert human intervention. This manuscript reports an ultra-portable, rapid, cost-effective, and easy-to-use solution for onsite heavy metal concentration measurement in drinking water samples. Presented solution combines off-the-shelf available chemical kits for heavy metal detection and developed spectrometer-based readout for concentration prediction, quality judgment, and automatic data collection. Two chemical kits for copper and iron detection have been imported form Merck and have been used for overall training and testing. The developed spectrometer has capability to work with smartphone-based android app and also can work in standalone mode. The developed spectrometer uses white light-emitting diode as a source and commercially imported spectral sensor (AS7262) for visible radiation reception. A low-power sub-GHZ-based wireless embedded platform has been developed and interfaced with source and detector. A power management module also has been designed to monitor the battery status and also to generate low battery indication. Overall modules has been packaged in custom designed enclosure to avoid external light interference. The developed system has been trained using standard buffer samples with known heavy metal concentrations and further tested for water samples collected from institute colony and nearby villages. The obtained results have been validated with commercially imported system from HANNA instruments, and it has been observed that developed system has shown excellent accuracy to predict heavy metal concentration (tested for Fe and Cu) in water samples.

scholarly journals Comparativ e assessment of heavy metals in drinking water sources from Enyigba Community in Abakaliki Local Government Area, Ebonyi State, Nigeria

2019 ◽  
Vol 13 (4) ◽  
pp. 149-154 ◽  
Author(s):  
Aloke Chinyere ◽  
Ephraim Uzuegbu Ifeanyi ◽  
Nkemjika Ogbu Patience ◽  
Ike Ugwuja Emmanuel ◽  
Frederick Orinya Onyebuchi ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Drinking Water ◽  
Local Government ◽  
Water Sources ◽  
Local Government Area ◽  
Drinking Water Sources

scholarly journals Quality Assessment of Surface and Ground Water of Hong Local Government Area of Adamawa State, Nigeria

2019 ◽  
pp. 1-11
Author(s):  
Priscilla Alexander ◽  
Janyo Noseh Dahiru ◽  
W. Hassan Garba
Keyword(s):  
Heavy Metals ◽  
Local Government ◽  
Ground Water ◽  
Water Samples ◽  
Local Government Area ◽  
Chemical Parameters ◽  
Quality Of Water ◽  
Physico Chemical ◽  
Dug Wells

The quality of water from surface and ground water sources in Hong Local Government Area of Adamawa State was studied to determine their suitability or otherwise for drinking and domestic purposes. Nine (9) samples, three (3) each from streams, dug wells and boreholes were randomly collected, during the dry season, in the months of October and November, 2016. The samples were analysed, and the values compared with WHO and NAFDAC standards to ascertain their compliance. The results of the analysis revealed that the physico-chemical parameters studied and concentrations of heavy metals determined, falls within the maximum permissible limits of WHO and NAFDAC standards for drinking water. However, the water samples were predominantly alkaline (pH 6.30 ± 0.10 to 7.00 ± 0.10), (6.70 ± 0.20 to 7.30 ± 0.20), and (7.60 ±0.20 to 8.20 ± 0.10), for boreholes, dug wells and streams respectively. The heavy metals concentrations were determined using Atomic Absorption Spectrophotometric method. The suitability of water for domestic and drinking purposes indicates that water samples were within the standards prescribed for potable waters.

Application of response surface methodology for silver nanoparticle stir bar sorptive extraction of heavy metals from drinking water samples: a Box–Behnken design

The Analyst ◽  
2019 ◽  
Vol 144 (11) ◽  
pp. 3525-3532 ◽  
Author(s):  
Sayyed Hossein Hashemi ◽  
Massoud Kaykhaii ◽  
Ahmad Jamali Keikha ◽  
Zahra Sajjadi ◽  
Majid Mirmoghaddam
Keyword(s):  
Heavy Metals ◽  
Silver Nanoparticles ◽  
Response Surface Methodology ◽  
Drinking Water ◽  
Silver Nanoparticle ◽  
Water Samples ◽  
Stir Bar Sorptive Extraction ◽  
Box Behnken Design ◽  
Sorptive Extraction ◽  
Drinking Water Samples

Silver nanoparticles were coated on a glass stir bar and used for the extraction of heavy metals from water samples after their complexation with ligand PAN, followed by their HPLC determination.

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