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Arsenic exposure in drinking water: an unrecognized health threat in Peru

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dc.contributor.author George, Christine Marie
dc.contributor.author Sima, Laura
dc.contributor.author Arias, M. Helena Jahuira
dc.contributor.author Mihalic, Jana
dc.contributor.author Cabrera, Lilia Z.
dc.contributor.author Danz, David
dc.contributor.author Checkley, William
dc.contributor.author Gilman, Robert H.
dc.date.accessioned 2020-06-10T18:11:35Z
dc.date.available 2020-06-10T18:11:35Z
dc.date.issued 2014
dc.identifier.uri https://hdl.handle.net/20.500.12866/8015
dc.description.abstract OBJECTIVE: To assess the extent of arsenic contamination of groundwater and surface water in Peru and, to evaluate the accuracy of the Arsenic Econo-Quick() (EQ) kit for measuring water arsenic concentrations in the field. METHODS: Water samples were collected from 151 water sources in 12 districts of Peru, and arsenic concentrations were measured in the laboratory using inductively-coupled plasma mass spectrometry. The EQ field kit was validated by comparing a subset of 139 water samples analysed by laboratory measurements and the EQ kit. FINDINGS: In 86% (96/111) of the groundwater samples, arsenic exceeded the 10 microg/l arsenic concentration guideline given by the World Health Organization (WHO) for drinking water. In 56% (62/111) of the samples, it exceeded the Bangladeshi threshold of 50 microg/l; the mean concentration being 54.5 microg/l (range: 0.1-93.1). In the Juliaca and Caracoto districts, in 96% (27/28) of groundwater samples arsenic was above the WHO guideline; and in water samples collected from the section of the Rimac river running through Lima, all had arsenic concentrations exceeding the WHO limit. When validated against laboratory values, the EQ kit correctly identified arsenic contamination relative to the guideline in 95% (106/111) of groundwater and in 68% (19/28) of surface water samples. CONCLUSION: In several districts of Peru, drinking water shows widespread arsenic contamination, exceeding the WHO arsenic guideline. This poses a public health threat requiring further investigation and action. For groundwater samples, the EQ kit performed well relative to the WHO arsenic limit and therefore could provide a vital tool for water arsenic surveillance. en_US
dc.language.iso eng
dc.publisher World Health Organization
dc.relation.ispartof urn:issn:1564-0604
dc.rights info:eu-repo/semantics/restrictedAccess
dc.rights.uri https://creativecommons.org/licenses/by-nc-nd/4.0/deed.es
dc.subject Drinking Water en_US
dc.subject Arsenic/analysis en_US
dc.subject Environmental Monitoring/instrumentation en_US
dc.subject Peru en_US
dc.subject Spectrophotometry, Atomic en_US
dc.subject Water Pollutants, Chemical/analysis en_US
dc.title Arsenic exposure in drinking water: an unrecognized health threat in Peru en_US
dc.type info:eu-repo/semantics/article
dc.identifier.doi https://doi.org/10.2471/BLT.13.128496
dc.subject.ocde https://purl.org/pe-repo/ocde/ford#3.02.00 es_PE
dc.subject.ocde https://purl.org/pe-repo/ocde/ford#3.03.05


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