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日本陆生哺乳动物血液中有机卤污染物及其代谢物的积累特征存在种间差异。

Species-specific differences in the accumulation features of organohalogen contaminants and their metabolites in the blood of Japanese terrestrial mammals.

机构信息

Center for Marine Environmental Studies (CMES), Ehime University, Matsuyama, Ehime 790-8577, Japan.

出版信息

Environ Pollut. 2013 Mar;174:28-37. doi: 10.1016/j.envpol.2012.11.004. Epub 2012 Dec 14.

DOI:10.1016/j.envpol.2012.11.004
PMID:23246744
Abstract

Residue levels and patterns of polychlorinated biphenyls (PCBs), polybrominated diphenyl ethers (PBDEs), their hydroxylated metabolites (OH-PCBs, OH-PBDEs), and methoxylated PBDEs (MeO-PBDEs) in the blood of various terrestrial mammals in Japan, including cats, raccoon dogs, dogs, masked palm civets, foxes, raccoons, badgers, and mongooses were determined. Tri- through penta-chlorinated OH-PCBs were predominant in cat blood, whereas hexa- through octa-chlorinated OH-PCBs were found in other species. High proportion of BDE209 was found in all species, suggesting exposure to municipal waste and soil containing higher levels of deca-BDE products. 6OH-/MeO-BDE47 and 2'OH-/MeO-BDE68 were dominant in all terrestrial mammals. This is first report on the detection of OH-/MeO-PBDEs in the blood of terrestrial mammals. High concentrations of OH-/MeO-PBDEs were found in cats, suggesting the intake of these compounds from seafood. Cats exhibited higher accumulation and specific patterns of OH-PCBs, OH-PBDEs, and MeO-PBDEs, they may be at a high risk from these metabolites.

摘要

本研究测定了日本各类陆生哺乳动物（包括猫、貉、犬、果子狸、狐、狸、獾和猫鼬）血液中多氯联苯（PCBs）、多溴二苯醚（PBDEs）、其羟基代谢物（OH-PCBs、OH-PBDEs）和甲氧基化 PBDEs（MeO-PBDEs）的残留水平和分布模式。在猫血液中，三氯至五氯代 OH-PCBs 占优势，而在其他物种中则发现了六氯至八氯代 OH-PCBs。所有物种中均发现 BDE209 占比较高，表明其暴露于含有较高水平十溴联苯醚产品的城市垃圾和土壤中。在所有陆生哺乳动物中，6OH-/MeO-BDE47 和 2'OH-/MeO-BDE68 占主导地位。这是首次在陆生哺乳动物血液中检测到 OH-/MeO-PBDEs。猫血液中存在高浓度的 OH-/MeO-PBDEs，提示其从海鲜中摄入了这些化合物。猫对 OH-PCBs、OH-PBDEs 和 MeO-PBDEs 的积累水平较高，且具有特定的分布模式，它们可能面临这些代谢物的高风险。

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