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Environmental Forensics Volume 18, 2017 - Issue 3
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Contributed Articles

Potential risk of drinking water to human health in Sri Lanka

H. M. Ayala S. HerathDepartment of Environmental Engineering, Toyama Prefectural University, Imizu, Toyama, JapanCorrespondence[email protected]
ORCID Iconhttp://orcid.org/0000-0002-1538-8293
ORCID Icon,
Kazusa KubotaDepartment of Environmental Engineering, Toyama Prefectural University, Imizu, Toyama, Japan
,
Tomonori KawakamiDepartment of Environmental Engineering, Toyama Prefectural University, Imizu, Toyama, Japan
,
Shiori NagasawaDepartment of Environmental Engineering, Toyama Prefectural University, Imizu, Toyama, Japan
,
Ayuri MotoyamaGraduate School of Gifu University, Gifu, Japan
,
S. K. WeragodaNational Water Supply and Drainage Board, Sri Lanka
,
G. G. Tushara ChamindaDepartment of Civil and Environmental Engineering, Faculty of Engineering, University of Ruhuna, Hapugala, Galle, Sri Lanka
&
S. K. YatigammanaDepartment of Zoology, Faculty of Science, University of Peradeniya, Peradeniya, Sri Lanka
 show all
Pages 241-250 | Published online: 02 Aug 2017
 
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ABSTRACT

A total of 1,304 well water samples from Sri Lanka were analyzed to assess the potential risk of drinking water to human health. Fluoride concentration of more than 1.0 mg/L was found in 20% of the wells, especially in the dry zone where CKDu is prevalent. Fluoride is a suspected cause of CKDu in the region. Nitrate concentrations of more than 50 mg/L were recorded in 2.2% of the wells in areas with intense agricultural activity. Arsenic concentrations of more than 10 µg/L were found in 0.9% of the wells. Contaminated well water could pose a potential risk to human health.

Funding

The authors gratefully acknowledge the financial support given as Grants-in-Aid for Scientific Research 23404003 by JSPS.

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