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Land Use in Habitats Affects Metal Concentrations in Wild Lizards Around a Former Lead Mining Site

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Title: Land Use in Habitats Affects Metal Concentrations in Wild Lizards Around a Former Lead Mining Site
Authors: Doya, Rio Browse this author
Nakayama, Shouta M. M. Browse this author →KAKEN DB
Nakata, Hokuto Browse this author
Toyomaki, Haruya Browse this author
Yabe, John Browse this author
Muzandu, Kaampwe Browse this author
Yohannes, Yared B. Browse this author
Kataba, Andrew Browse this author
Zyambo, Golden Browse this author
Ogawa, Takahiro Browse this author
Uchida, Yoshitaka Browse this author →KAKEN DB
Ikenaka, Yoshinori Browse this author →KAKEN DB
Ishizuka, Mayumi Browse this author →KAKEN DB
Issue Date: 17-Nov-2020
Publisher: American Chemical Society
Journal Title: Environmental science & technology
Volume: 54
Issue: 22
Start Page: 14474
End Page: 14481
Publisher DOI: 10.1021/acs.est.0c00150
Abstract: We investigated the potential effects of different land use and other environmental factors on animals living in a contaminated environment. The study site in Kabwe, Zambia, is currently undergoing urban expansion, while lead contamination from former mining activities is still prevalent. We focused on a habitat generalist lizards (Trachylepis wahlbergii). The livers, lungs, blood, and stomach contents of 224 lizards were analyzed for their lead, zinc, cadmium, copper, nickel, and arsenic concentrations. Habitat types were categorized based on vegetation data obtained from satellite images. Multiple regression analysis revealed that land use categories of habitats and three other factors significantly affected lead concentrations in the lizards. Further investigation suggested that the lead concentrations in lizards living in bare fields were higher than expected based on the distance from the contaminant source, while those in lizards living in green fields were lower than expected. In addition, the lead concentration of lungs was higher than that of the liver in 19% of the lizards, implying direct exposure to lead via dust inhalation besides digestive exposure. Since vegetation reduces the production of dust from surface soil, it is plausible that dust from the mine is one of the contamination sources and that vegetation can reduce exposure to this.
Rights: This document is the Accepted Manuscript version of a Published Work that appeared in final form in Environmental science and technology, copyright c American Chemical Society after peer review and technical editing by the publisher. To access the final edited and published work see
Type: article (author version)
Appears in Collections:獣医学院・獣医学研究院 (Graduate School of Veterinary Medicine / Faculty of Veterinary Medicine) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 石塚 真由美

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