Variability of naturally occurring fluoride in diverse community drinking-water sources, Tanna Island, Vanuatu

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dc.citation.issue4
dc.citation.volume11
dc.contributor.authorWebb E
dc.contributor.authorStewart C
dc.contributor.authorSami E
dc.contributor.authorKelsey S
dc.contributor.authorFairbairn Dunlop P
dc.contributor.authorDennison E
dc.date.accessioned2023-08-14T00:49:26Z
dc.date.accessioned2023-09-04T01:41:12Z
dc.date.available2021-05-19
dc.date.available2023-08-14T00:49:26Z
dc.date.available2023-09-04T01:41:12Z
dc.date.issued2021-07
dc.date.updated2023-08-14T00:18:14Z
dc.description.abstractLarge variations in fluoride concentrations exist in natural waters, many of which are the source of community drinking-water supplies. Determining fluoride concentrations in community drinking waters can be challenging in developing Pacific countries such as Vanuatu that have limited laboratory capacity. Knowledge of naturally elevated fluoride concentrations that cause irreversible, adverse health outcomes may allow communities the opportunity to treat and manage their drinking-water supplies. Community drinking-water samples (n = 69), sourced from groundwaters, roof catchment rainwaters, surface waters and springs, were sampled on Tanna Island, Vanuatu between 2017 and 2020. In an 18 km2 area of Western Tanna, a set of 30 groundwater-based drinking-water samples had a median fluoride concentration of 3.3 mg/L, with 20 samples >1.5 mg/L and seven samples >4.0 mg/L. These concentrations increase the risk of dental and skeletal fluorosis, respectively. Repeat resampling at five sites showed little variation over the sampling period. Rainwater-fed drinking-water supplies were lower overall and highly variable in fluoride concentrations (<0.05–4.0 mg/L, median of 0.53 mg/L), with variable inputs from volcanic emissions from Yasur volcano. We recommend a comprehensive oral health and bone health study for the whole island to determine adverse health effects of excess fluoride in this vulnerable population.
dc.description.confidentialfalse
dc.edition.editionJuly 2021
dc.format.extent591-599
dc.identifierhttp://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000653184100001&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=c5bb3b2499afac691c2e3c1a83ef6fef
dc.identifier.citationWebb E, Stewart C, Sami E, Kelsey S, Dunlop PF, Dennison E. (2021). Variability of naturally occurring fluoride in diverse community drinking-water sources, tanna island, vanuatu. Journal of Water Sanitation and Hygiene for Development. 11. 4. (pp. 591-599).
dc.identifier.doi10.2166/washdev.2021.270
dc.identifier.eissn2408-9362
dc.identifier.elements-typejournal-article
dc.identifier.harvestedMassey_Dark
dc.identifier.issn2043-9083
dc.identifier.urihttp://hdl.handle.net/10179/19936
dc.languageEnglish
dc.publisherIWA Publishing
dc.publisher.urihttps://iwaponline.com/washdev/article/11/4/591/82148/Variability-of-naturally-occurring-fluoride-in
dc.relation.isPartOfJournal of Water Sanitation and Hygiene for Development
dc.rightsCC BY 4.0en_US
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/en_US
dc.subjectdrinking waters
dc.subjectfluoride
dc.subjectfluorosis
dc.subjectgroundwater
dc.subjectVanuatu
dc.subjectvolcanism
dc.titleVariability of naturally occurring fluoride in diverse community drinking-water sources, Tanna Island, Vanuatu
dc.typeJournal article
pubs.elements-id441387
pubs.organisational-groupOther
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