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Evaluation of radon concentration and heavy metals in drinking water and their health implications to the population of Quetta, Balochistan, Pakistan

The purpose of this study is to estimate the concentrations of radon and heavy metals in drinking water and assess their health implications to the population of Quetta, Pakistan. The concentration of radon and heavy metals was measured in drinking water collected from tube wells of different depths...

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Main Authors: Ahmad, Nisar, Uddin, Zia, Rehman, Jalil Ur, Bakhsh, Muhammad, Ullah, Hamid
Format: Article
Published: Taylor & Francis 2020
Subjects:
Q Science (General)
Online Access:http://eprints.um.edu.my/36960/
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spelling my.um.eprints.369602024-11-08T01:27:06Z http://eprints.um.edu.my/36960/ Evaluation of radon concentration and heavy metals in drinking water and their health implications to the population of Quetta, Balochistan, Pakistan Ahmad, Nisar Uddin, Zia Rehman, Jalil Ur Bakhsh, Muhammad Ullah, Hamid Q Science (General) The purpose of this study is to estimate the concentrations of radon and heavy metals in drinking water and assess their health implications to the population of Quetta, Pakistan. The concentration of radon and heavy metals was measured in drinking water collected from tube wells of different depths of the Quetta, Balochistan, Pakistan, using RAD7 detector and Atomic Absorption Spectrometer, respectively. The results show that the concentration of radon ranged from 3.56 +/- 0.98 to 8.56 +/- 1.32Bq/L with an average of 5.67 +/- 1.34Bq/L. The average value of contribution of radon in water to indoor air was found 2.02 +/- 0.47mBq/L. In addition to concentration of radon in drinking water, physiochemical parameters like pH and electrical conductivity (EC), and annual effective doses for different age groups were also estimated. Positive correlation of (R-2 = 0.8471) was observed between depth of well and concentration of radon, however no such relations were found among pH and EC with concentration of radon. Average values of annual effective doses due to intake of radon for age groups 0-1 years (infants), 2-16 years (Children) and >= 17 years (adults) were found (3.00 +/- 0.71)x10(-2), (1.1 +/- 0.26)x10(-2) and (1.45 +/- 0.34)x10(-2) mSv/y, respectively. Average values of heavy metals concentrations were found 1.85 +/- 0.64, 3.21 +/- 0.75, 5.06 +/- 1.19, and 2.47 +/- 0.77 and 5.58 +/- 1.23 mu g/L for As, Cr, Ni, Cd and Pb, respectively. The values of radon concentration and heavy metals in drinking water were found below the USEPA permissible limits, Thus we conclude that, the investigated waters are safe. Taylor & Francis 2020-01 Article PeerReviewed Ahmad, Nisar and Uddin, Zia and Rehman, Jalil Ur and Bakhsh, Muhammad and Ullah, Hamid (2020) Evaluation of radon concentration and heavy metals in drinking water and their health implications to the population of Quetta, Balochistan, Pakistan. International Journal of Environmental Analytical Chemistry, 100 (1). pp. 32-41. ISSN 0306-7319, DOI https://doi.org/10.1080/03067319.2019.1629584 <https://doi.org/10.1080/03067319.2019.1629584>. 10.1080/03067319.2019.1629584
institution Universiti Malaya
building UM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Malaya
content_source UM Research Repository
url_provider http://eprints.um.edu.my/
topic Q Science (General)
spellingShingle Q Science (General)
Ahmad, Nisar
Uddin, Zia
Rehman, Jalil Ur
Bakhsh, Muhammad
Ullah, Hamid
Evaluation of radon concentration and heavy metals in drinking water and their health implications to the population of Quetta, Balochistan, Pakistan
description The purpose of this study is to estimate the concentrations of radon and heavy metals in drinking water and assess their health implications to the population of Quetta, Pakistan. The concentration of radon and heavy metals was measured in drinking water collected from tube wells of different depths of the Quetta, Balochistan, Pakistan, using RAD7 detector and Atomic Absorption Spectrometer, respectively. The results show that the concentration of radon ranged from 3.56 +/- 0.98 to 8.56 +/- 1.32Bq/L with an average of 5.67 +/- 1.34Bq/L. The average value of contribution of radon in water to indoor air was found 2.02 +/- 0.47mBq/L. In addition to concentration of radon in drinking water, physiochemical parameters like pH and electrical conductivity (EC), and annual effective doses for different age groups were also estimated. Positive correlation of (R-2 = 0.8471) was observed between depth of well and concentration of radon, however no such relations were found among pH and EC with concentration of radon. Average values of annual effective doses due to intake of radon for age groups 0-1 years (infants), 2-16 years (Children) and >= 17 years (adults) were found (3.00 +/- 0.71)x10(-2), (1.1 +/- 0.26)x10(-2) and (1.45 +/- 0.34)x10(-2) mSv/y, respectively. Average values of heavy metals concentrations were found 1.85 +/- 0.64, 3.21 +/- 0.75, 5.06 +/- 1.19, and 2.47 +/- 0.77 and 5.58 +/- 1.23 mu g/L for As, Cr, Ni, Cd and Pb, respectively. The values of radon concentration and heavy metals in drinking water were found below the USEPA permissible limits, Thus we conclude that, the investigated waters are safe.
format Article
author Ahmad, Nisar
Uddin, Zia
Rehman, Jalil Ur
Bakhsh, Muhammad
Ullah, Hamid
author_facet Ahmad, Nisar
Uddin, Zia
Rehman, Jalil Ur
Bakhsh, Muhammad
Ullah, Hamid
author_sort Ahmad, Nisar
title Evaluation of radon concentration and heavy metals in drinking water and their health implications to the population of Quetta, Balochistan, Pakistan
title_short Evaluation of radon concentration and heavy metals in drinking water and their health implications to the population of Quetta, Balochistan, Pakistan
title_full Evaluation of radon concentration and heavy metals in drinking water and their health implications to the population of Quetta, Balochistan, Pakistan
title_fullStr Evaluation of radon concentration and heavy metals in drinking water and their health implications to the population of Quetta, Balochistan, Pakistan
title_full_unstemmed Evaluation of radon concentration and heavy metals in drinking water and their health implications to the population of Quetta, Balochistan, Pakistan
title_sort evaluation of radon concentration and heavy metals in drinking water and their health implications to the population of quetta, balochistan, pakistan
publisher Taylor & Francis
publishDate 2020
url http://eprints.um.edu.my/36960/
_version_ 1816130389439152128
score 13.222552

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