Proof of concept for a passive sampler for monitoring of gaseous elemental mercury in artisanal gold mining

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dc.citation.volume7
dc.contributor.authorSantos, Elias de Barros [UNIFESP]
dc.contributor.authorMoher, Paleah
dc.contributor.authorFerlin, Stacy
dc.contributor.authorFostier, Anne Helene
dc.contributor.authorMazali, Italo Odone
dc.contributor.authorTelmer, Kevin
dc.contributor.authorBrolo, Alexandre Guimaraes
dc.coverageLondon
dc.date.accessioned2020-09-01T13:21:16Z
dc.date.available2020-09-01T13:21:16Z
dc.date.issued2017
dc.description.abstractMercury emissions from artisanal gold mining operations occurring in roughly 80 developing countries are a major workplace health hazard for millions of people as well as the largest contributor to global mercury pollution. There are no portable, cheap, and rapid methods able to inform workers or health practitioners of mercury exposure on site in remote locations. In this work, a proof of concept for a miniaturized mercury sampler, prepared by the direct reduction of gold into the porous nanostructures of Vycor glass (PVG), is introduced. Mercury retention on the PVG/Au sampler induces significant color changes, due to the formation of Au-Hg amalgam that affects the surface plasmon resonance characteristics of the material. The color change can potentially be quantified by the analysis of pictures obtained with a cell phone camera rapidly and onsite. Laboratory experiments showed the viability of using PVG/Au as passive sampler for monitoring of Hg degrees. PVG/Au samplers were then deployed in an artisanal and small-scale gold mining (ASGM) operations in Burkina Faso and it was able to indicate personal mercury exposures. The amount of mercury quantified in the samplers for all miners was higher than the current personal exposure limit set by the US Occupational Safety & Health Administration (OSHA).en
dc.description.affiliationUniv Fed Sao Paulo, Inst Sci & Technol, BR-12231280 Sao Jose Dos Campos, SP, Brazil
dc.description.affiliationUniv Victoria, Dept Chem, POB 3055, Victoria, BC V8W 3V6, Canada
dc.description.affiliationUniv Victoria, Dept Geog, Victoria, BC V8W 3P2, Canada
dc.description.affiliationArtisanal Gold Council, C100-633 Courtney St, Victoria, BC V8W 1B9, Canada
dc.description.affiliationUniv Estadual Campinas, Inst Chem, POB 6154, BR-13081970 Campinas, SP, Brazil
dc.description.affiliationUniv Estadual Campinas, Inst Chem, Funct Mat Lab, POB 6154, BR-13083970 Campinas, SP, Brazil
dc.description.affiliationUnifespUniv Fed Sao Paulo, Inst Sci & Technol, BR-12231280 Sao Jose Dos Campos, SP, Brazil
dc.description.sourceWeb of Science
dc.description.sponsorshipFAPESP
dc.description.sponsorshipNSERC
dc.description.sponsorshipUnited States Department of State (USDoS)
dc.description.sponsorshipUnited Nations Industrial Development Organization (UNIDO)
dc.description.sponsorshippost-doctoral fellowship from CNPq (Science Without Borders)
dc.description.sponsorshippost-doctoral fellowship from CIHR
dc.description.sponsorshipArtisanal Gold Council
dc.description.sponsorshipMinistry of the Environment
dc.description.sponsorshipMinistry of Mines
dc.description.sponsorshipMinistry of Health of Burkina Faso
dc.description.sponsorshipIDFAPESP: 2016/03559-7
dc.description.sponsorshipIDFAPESP: 2013/22127-2
dc.description.sponsorshipIDFAPESP: 2014/50906-9
dc.description.sponsorshipIDUnited States Department of State (USDoS): S-LMAQM-15-GR-1178
dc.description.sponsorshipIDUnited Nations Industrial Development Organization (UNIDO): GF/RAF/12/001
dc.format.extent-
dc.identifierhttp://dx.doi.org/10.1038/s41598-017-16713-7
dc.identifier.citationScientific Reports. London, v. 7, p. -, 2017.
dc.identifier.doi10.1038/s41598-017-16713-7
dc.identifier.fileWOS000416398100063.pdf
dc.identifier.issn2045-2322
dc.identifier.urihttps://repositorio.unifesp.br/handle/11600/58162
dc.identifier.wosWOS:000416398100063
dc.language.isoeng
dc.publisherNature Publishing Group
dc.relation.ispartofScientific Reports
dc.rightsinfo:eu-repo/semantics/openAccess
dc.titleProof of concept for a passive sampler for monitoring of gaseous elemental mercury in artisanal gold miningen
dc.typeinfo:eu-repo/semantics/article
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