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Lead exposure in raptors from Japan and source identification using Pb stable isotope ratios

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Please use this identifier to cite or link to this item:http://hdl.handle.net/2115/70726

Title: Lead exposure in raptors from Japan and source identification using Pb stable isotope ratios
Authors: Ishii, Chihiro Browse this author
Nakayama, Shouta M. M. Browse this author →KAKEN DB
Ikenaka, Yoshinori Browse this author →KAKEN DB
Nakata, Hokuto Browse this author
Saito, Keisuke Browse this author
Watanabe, Yukiko Browse this author
Mizukawa, Hazuki Browse this author →KAKEN DB
Tanabe, Shinsuke Browse this author →KAKEN DB
Nomiyama, Kei Browse this author →KAKEN DB
Hayashi, Terutake Browse this author
Ishizuka, Mayumi Browse this author →KAKEN DB
Keywords: Pb poisoning
Raptor
Japan
Pb isotope ratios
Issue Date: Nov-2017
Publisher: Elsevier
Journal Title: Chemosphere
Volume: 186
Start Page: 367
End Page: 373
Publisher DOI: 10.1016/j.chemosphere.2017.07.143
PMID: 28800537
Abstract: Lead (Pb) poisoning is widespread among raptors and water birds. In Japan, fragments of Pb ammunition are still found in endangered eagles although more than 10 years have passed since legislation regarding use of Pb ammunition was introduced. This study was performed to investigate Pb exposure in raptors from various locations in Japan. We measured hepatic and renal Pb concentrations and hepatic Pb isotope ratios of Steller's sea eagles (Haliaeetus pelagicus), white-tailed sea eagles (Haliaeetus albicilla), golden eagles (Aquila chrysaetos), and 13 other species (total 177 individuals) that were found dead, as well as blood samples from three eagles found in a weakened state during 1993-2015 from Hokkaido (northern part), Honshu (the main island), and Shikoku (a southern island) of japan. In the present study in Hokkaido, one quarter of the sea eagles showed a high Pb concentration, suggesting exposure to abnormally high Pb levels and Pb poisoning. Pb isotope ratios indicated that endangered Steller's sea eagle and white-tailed sea eagle were poisoned by Pb ammunition that was used illegally in Hokkaido. In other areas of Japan, both surveillance and regulations were less extensive than in Hokkaido, but Pb poisoning in raptors was also noted. Therefore, Pb poisoning is still a serious problem in raptors in various areas of Japan due to accidental ingestion of materials containing Pb, especially Pb ammunition. (C) 2017 Published by Elsevier Ltd.
Rights: https://creativecommons.org/licenses/by-nc-nd/4.0/
Type: article (author version)
URI: http://hdl.handle.net/2115/70726
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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