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Consumption of water from ex-mining ponds in Klang Valley and Melaka, Malaysia: A health risk study

Evaluation of health risks due to heavy metals exposure via drinking water from ex-mining ponds in Klang Valley and Melaka has been conducted. Measurements of As, Cd, Pb, Mn, Fe, Na, Mg, Ca, and dissolved oxygen, pH, electrical conductivity, total dissolved solid, ammoniacal nitrogen, total suspende...

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Main Authors: Koki, Isa Baba, Low, Kah Hin, Juahir, Hafizan, Abdul Zali, Munirah, Azid, Azman, Zain, Sharifuddin Md
Format: Article
Published: Elsevier 2018
Subjects:
Q Science (General)
QD Chemistry
Online Access:http://eprints.um.edu.my/21592/
https://doi.org/10.1016/j.chemosphere.2017.12.112
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spelling my.um.eprints.215922019-07-09T07:54:13Z http://eprints.um.edu.my/21592/ Consumption of water from ex-mining ponds in Klang Valley and Melaka, Malaysia: A health risk study Koki, Isa Baba Low, Kah Hin Juahir, Hafizan Abdul Zali, Munirah Azid, Azman Zain, Sharifuddin Md Q Science (General) QD Chemistry Evaluation of health risks due to heavy metals exposure via drinking water from ex-mining ponds in Klang Valley and Melaka has been conducted. Measurements of As, Cd, Pb, Mn, Fe, Na, Mg, Ca, and dissolved oxygen, pH, electrical conductivity, total dissolved solid, ammoniacal nitrogen, total suspended solid, biological oxygen demand were collected from 12 ex-mining ponds and 9 non-ex-mining lakes. Exploratory analysis identified As, Cd, and Pb as the most representative water quality parameters in the studied areas. The metal exposures were simulated using Monte Carlo methods and the associated health risks were estimated at 95th and 99th percentile. The results revealed that As was the major risk factor which might have originated from the previous mining activity. For Klang Valley, adults that ingested water from those ponds are at both non-carcinogenic and carcinogenic risks, while children are vulnerable to non-carcinogenic risk; for Melaka, only children are vulnerable to As complications. However, dermal exposure showed no potential health consequences on both adult and children groups. Elsevier 2018 Article PeerReviewed Koki, Isa Baba and Low, Kah Hin and Juahir, Hafizan and Abdul Zali, Munirah and Azid, Azman and Zain, Sharifuddin Md (2018) Consumption of water from ex-mining ponds in Klang Valley and Melaka, Malaysia: A health risk study. Chemosphere, 195. pp. 641-652. ISSN 0045-6535 https://doi.org/10.1016/j.chemosphere.2017.12.112 doi:10.1016/j.chemosphere.2017.12.112
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)
QD Chemistry
spellingShingle Q Science (General)
QD Chemistry
Koki, Isa Baba
Low, Kah Hin
Juahir, Hafizan
Abdul Zali, Munirah
Azid, Azman
Zain, Sharifuddin Md
Consumption of water from ex-mining ponds in Klang Valley and Melaka, Malaysia: A health risk study
description Evaluation of health risks due to heavy metals exposure via drinking water from ex-mining ponds in Klang Valley and Melaka has been conducted. Measurements of As, Cd, Pb, Mn, Fe, Na, Mg, Ca, and dissolved oxygen, pH, electrical conductivity, total dissolved solid, ammoniacal nitrogen, total suspended solid, biological oxygen demand were collected from 12 ex-mining ponds and 9 non-ex-mining lakes. Exploratory analysis identified As, Cd, and Pb as the most representative water quality parameters in the studied areas. The metal exposures were simulated using Monte Carlo methods and the associated health risks were estimated at 95th and 99th percentile. The results revealed that As was the major risk factor which might have originated from the previous mining activity. For Klang Valley, adults that ingested water from those ponds are at both non-carcinogenic and carcinogenic risks, while children are vulnerable to non-carcinogenic risk; for Melaka, only children are vulnerable to As complications. However, dermal exposure showed no potential health consequences on both adult and children groups.
format Article
author Koki, Isa Baba
Low, Kah Hin
Juahir, Hafizan
Abdul Zali, Munirah
Azid, Azman
Zain, Sharifuddin Md
author_facet Koki, Isa Baba
Low, Kah Hin
Juahir, Hafizan
Abdul Zali, Munirah
Azid, Azman
Zain, Sharifuddin Md
author_sort Koki, Isa Baba
title Consumption of water from ex-mining ponds in Klang Valley and Melaka, Malaysia: A health risk study
title_short Consumption of water from ex-mining ponds in Klang Valley and Melaka, Malaysia: A health risk study
title_full Consumption of water from ex-mining ponds in Klang Valley and Melaka, Malaysia: A health risk study
title_fullStr Consumption of water from ex-mining ponds in Klang Valley and Melaka, Malaysia: A health risk study
title_full_unstemmed Consumption of water from ex-mining ponds in Klang Valley and Melaka, Malaysia: A health risk study
title_sort consumption of water from ex-mining ponds in klang valley and melaka, malaysia: a health risk study
publisher Elsevier
publishDate 2018
url http://eprints.um.edu.my/21592/
https://doi.org/10.1016/j.chemosphere.2017.12.112
_version_ 1643691603581206528
score 13.211869

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