Please use this identifier to cite or link to this item:
Full metadata record
DC FieldValueLanguage
dc.contributor.authorVega, Claudia-
dc.contributor.authorOrellana, Jesem-
dc.contributor.authorOliveira, Marcos-
dc.contributor.authorHacon, Sandra-
dc.contributor.authorBasta, Paulo-
dc.identifier.citationVEGA, Claudia; ORELLANA, Jesem; OLIVEIRA, Marcos; HACON, Sandra; BASTA, Paulo. Human Mercury Exposure in Yanomami Indigenous Villages from the Brazilian Amazon. Int. J. Environ. Res. Public Health, v. 15, n. 6, 2018.en_US
dc.rightsopen accessen_US
dc.subject.otherRegião Amazônicaen_US
dc.titleHuman Mercury Exposure in Yanomami Indigenous Villages from the Brazilian Amazonen_US
dc.description.abstractenIn the Brazilian Amazon, where the majority of Yanomami villages are settled, mercury (Hg) exposure due to artisanal small-scale gold mining (ASGM) has been reported since the 1980s. This study assessed mercury exposure in the Yanomami reserve and whether the level of contamination was related to the ASGM geographical location. It was conducted using a cross-sectional study of 19 villages. Direct interviews were performed and hair samples were used as a bioindicator of Hg exposure. The Prevalence-Ratio (PR) was estimated as an indicator of association between ASGM geographical locations and human exposure to mercury. Mercury levels (239 hair samples) ranged between 0.4 and 22.1 µg·g −1 and presented substantial differences amongst the villages. In the Waikas-Aracaça region, where current ASGM was reported, we observed the highest Hg concentrations (median = 15.5 µg·g −1 ). Almost all participants presented with hair-Hg levels >6 µg·g −1 (prevalence = 92.3%). In the Paapiu region, we observed the lowest concentrations (median = 3.2 µg·g −1 ; prevalence = 6.7%). Our findings showed that the Waikas Ye’kuana and Waikas Aracaca villages presented with 4.4 (PR = 4.4; Confidence Interval (CI) 95% = 2.2–9.0) and 14.0 (PR = 14.0; CI 95% = 7.9–24.9) times higher prevalence of hair-Hg concentration, respectively, compared with Paapiu. Considering seasonal variation of Hg-exposure, the lowest concentrations were observed during the wet season (June–September) and the highest in the dry season (December–April). Our study suggests that there is an association between mercury exposure and ASGM geographical locationsen_US
dc.subject.decsSaúde de Populações Indígenasen_US
dc.subject.decsÍndios Sul-Americanosen_US
dc.subject.decsIntoxicação por Mercúrioen_US
dc.subject.decsSaúde Ambientalen_US
dc.subject.decsMeio Ambienteen_US
dc.subject.decsEcossistema Amazônicoen_US
dc.subject.enHealth of Indigenous Peoplesen_US
dc.subject.enIndians, South Americanen_US
dc.subject.enMercury Exposureen_US
Appears in Collections:EPI - Artigos de Periódicos

Files in This Item:
File Description SizeFormat 
Human Mercury Exposure in Yanomami Indigenous Villages from the Brazilian Amazon2.02 MBAdobe PDFView/Open

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.