期刊
SCIENCE OF THE TOTAL ENVIRONMENT
卷 710, 期 -, 页码 -出版社
ELSEVIER
DOI: 10.1016/j.scitotenv.2019.136319
关键词
Mercury; Lead; Lead isotope; Pollution; Skeleton; Archaeology
资金
- Xunta de Galicia [ED481D 2017/014]
- project: Galician Paleodiet - Xunta de Galicia [ED481D 2017/014]
- project: Consiliencia network - Xunta de Galicia [ED 431D2017/08]
- project: GPC - Xunta de Galicia [ED431B 2018/20]
Atmospheric metal pollution is a major health concern whose roots pre-date industrialization. This study pertains the analyses of ancient human skeletons and compares them with natural archives to trace historical environmental exposure at the edge of the Roman Empire in NW Iberia The novelty of our approach relies on the combination of mercury, lead and lead isotopes. We found over a 700-year period that rural Romans incorporated two times more mercury and lead into their bones than post-Romans inhabiting the same site, independent of sex or age. Atmospheric pollution sources contributed on average 57% (peaking at 85%) of the total lead incorporated into the bones in Roman times, which decreased to 24% after the decline of Rome. These values and accompanying changes in lead isotopic composition mirror changes in atmospheric Pb deposition recorded in local peatlands. Thus, skeletons are a time-transgressive archive reflecting contaminant exposure. (C) 2019 The Authors. Published by Elsevier B.V.
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