caa a22 4500 606200428 CHVBK 20210128100943.0 cr unu---uuuuu 210128e20150401xx s 000 0 eng 10.1007/s10653-014-9644-1 doi (NATIONALLICENCE)springer-10.1007/s10653-014-9644-1 Speciation and bioaccessibility of mercury in adobe bricks and dirt floors in Huancavelica, Peru [Elektronische Daten] [Nicole Hagan, Nicholas Robins, Ruben Gonzales, Heileen Hsu-Kim] Huancavelica, Peru, a historic cinnabar refining site, is one of the most mercury (Hg)-contaminated urban areas in the world. Exposure is amplified because residents build their adobe brick homes from contaminated soil. The objectives of this study were to compare two Hg-leaching procedures, and their application as risk-assessment screening tools in Hg-contaminated adobe brick homes in Huancavelica. The purpose was to evaluate potential health implications, particularly for children, after ingestion of Hg-contaminated particles. Hg was measured in adobe brick and dirt floor samples from 60 households by total Hg extraction, simulated gastric fluid (GF) extraction, and sequential selective extraction (SSE), which provides more detailed data but is resource-intensive. Most of the Hg present in samples was relatively insoluble, although in some households soluble Hg species were present at concentrations that may be of concern after ingestion. A strong correlation was identified between results from simulated GF extraction of adobe bricks and dirt floors and the more soluble fractions of Hg from SSE. Simulated GF extraction data were combined with ingestion and body mass characteristics for small children to compare potential risk of ingestion of Hg-contaminated soil with current health standards. Simulated GF extraction can be used as a risk assessment screening tool for effective allocation of time and resources to households that have measurable concentrations of bioaccessible Hg. Combining simulated GF extraction data with health standards enables intervention strategies targeted at households with the greatest potential health threat from ingestion of Hg-contaminated particles. Springer Science+Business Media Dordrecht, 2014 Adobe nationallicence Bioaccessibility nationallicence Ingestion nationallicence Mercury nationallicence Peru nationallicence Soil nationallicence Speciation nationallicence Hagan Nicole Department of Environmental Sciences and Engineering, The University of North Carolina at Chapel Hill, CB #7431, 27599-7431, Chapel Hill, NC, USA aut Robins Nicholas Department of History, North Carolina State University, Raleigh, NC, USA aut Gonzales Ruben Environmental Health Council, Huancavelica, Peru aut Hsu-Kim Heileen Department of Civil and Environmental Engineering, Duke University, Durham, NC, USA aut Environmental Geochemistry and Health Springer Netherlands 37/2(2015-04-01), 263-272 0269-4042 37:2<263 2015 37 10653 https://doi.org/10.1007/s10653-014-9644-1 text/html Onlinezugriff via DOI BK010053 XK010053 XK010000 Metadata rights reserved Springer special CC-BY-NC licence nationallicence 1 research-article jats NATIONALLICENCE NATIONALLICENCE NL-springer NATIONALLICENCE 856 40 https://doi.org/10.1007/s10653-014-9644-1 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Hagan Nicole Department of Environmental Sciences and Engineering, The University of North Carolina at Chapel Hill, CB #7431, 27599-7431, Chapel Hill, NC, USA aut NATIONALLICENCE 700 1- Robins Nicholas Department of History, North Carolina State University, Raleigh, NC, USA aut NATIONALLICENCE 700 1- Gonzales Ruben Environmental Health Council, Huancavelica, Peru aut NATIONALLICENCE 700 1- Hsu-Kim Heileen Department of Civil and Environmental Engineering, Duke University, Durham, NC, USA aut NATIONALLICENCE 773 0- Environmental Geochemistry and Health Springer Netherlands 37/2(2015-04-01), 263-272 0269-4042 37:2<263 2015 37 10653