RADIATION DOSE DUE TO RADON AND HEAVY METAL ANALYSIS IN DRINKING WATER SAMPLES OF JAMMU DISTRICT, JAMMU & KASHMIR, INDIA

2016 ◽  
Vol 171 (2) ◽  
pp. 217-222 ◽  
Author(s):  
A. Kumar ◽  
M. Kaur ◽  
S. Sharma ◽  
R. Mehra ◽  
D. K. Sharma ◽  
...  
Keyword(s):  
Heavy Metal ◽  
Drinking Water ◽  
Radiation Dose ◽  
Water Samples ◽  
Metal Analysis ◽  
Heavy Metal Analysis ◽  
Drinking Water Samples

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 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 Heavy metal analysis in ground water samples of Sailu Tehsil

2008 ◽  
Vol 3 (2) ◽  
pp. 339-340
Author(s):  
D.U. THOMBAL ◽  
R.U. AMBHURE ◽  
S.R. MIRGANE
Keyword(s):  
Heavy Metal ◽  
Ground Water ◽  
Water Samples ◽  
Metal Analysis ◽  
Heavy Metal Analysis

scholarly journals Assessment of Physico-Chemical Parameters and Heavy Metal of Drinking Water Samples from Some Iranian Universities and Surveyed the Efficacy of Several Water Purification Methods on Removal of Heavy Metal

2022 ◽  
Author(s):  
Zeinab Rezaei ◽  
Saeid Khanzadi ◽  
Ehsan Shamloo ◽  
Amir Salari
Keyword(s):  
Water Quality ◽  
Heavy Metal ◽  
Drinking Water ◽  
Water Purification ◽  
Water Samples ◽  
Permissible Limit ◽  
National Standard ◽  
Cadmium Content ◽  
Purification Methods ◽  
Drinking Water Samples

Abstract Water quality is the most important factor for consumers because it has a significant impact on their health. So, monitoring and controlling water quality is of particular significance in different human communities such as universities. In this study, the physicochemical parameters such as turbidity, electrical conductivity, hardness, alkalinity, calcium and magnesium ions, and heavy metals including lead, cadmium, nickel, arsenic, and chromium in drinking water were determined in nine Iranian universities. Then, the efficacy of several treatment methods was evaluated in the removal of heavy metal, including the boiling process in two stages: 5 minutes boiling and 5 hours boiling and filtration process. The results revealed that the physicochemical quality of drinking water in all universities was appropriate. Hardness levels in drinking water samples of all universities were higher than the WHO standards. However, this parameter was lower than the national standard of Iran (500 mg/l). Nevertheless, cadmium content was not detected in any samples, nickel content was below the permissible limit, and chromium content was below the permissible limit in all samples. However, its value was higher than the allowable limit in the university with a code of 6. Lead content was higher than the limit in samples with codes 3, 5-1, and 5-4, and arsenic content was higher than the limit in samples with codes 6, 1-1, 1-2, and 2. Water purification methods, including boiling and water purifier, were satisfactory and significantly reduced pollutants. According to the present study, it is suggested to check drinking water quality in universities randomly, and the 5-minute boiling method can be recommended as a cost-effective solution for water purification.

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