Comparative survey of levels of chlorinated cyclodiene pesticides in breast milk from some cities of China, Korea and Japan
Comparative survey of levels of chlorinated cyclodiene pesticides in breast milk from some cities of China, Korea and Japan
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DOI:
10.1016/j.chemosphere.2012.05.098
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发表时间:
2012-10-01
期刊:
影响因子:
8.8
通讯作者:
Haraguchi, Koichi
中科院分区:
文献类型:
--
作者:
Fujii, Yukiko;Ito, Yoshiko;Haraguchi, Koichi
Exposure of mothers to organochlorine pesticides (OCPs) was assessed by measuring the levels of 20 OCPs in 70 human breast milk samples pooled from 210 individuals from China. Korea and Japan. The OCPs were analyzed using gas chromatography/mass spectrometry (GC/MS) in electron capture negative ionization (ECNI) monitoring. The results showed that beta-hexachlorocyclohexane and hexachlorobenzene were one order of magnitude higher in China than in the other nations, whereas chlordanes and polychlorinated biphenyl levels were highest in Japan. Heptachlor epoxide, dieldrin, endrin, toxaphenes and mirex were detected in most samples, and levels of these chemicals were significantly higher in Japan (0.8-4.5 ng g(-1) lipid), followed by Korea (0.2-4.7 ng g(-1) lipid), and lowest in China (less than 1.0 ng g(-1) lipid). alpha- and beta-endosulfans were detected at a range of 0.9-1.5 ng g(-1) lipid levels in all samples analyzed, and their levels were higher in Korean than in Chinese samples. (C) 2012 Elsevier Ltd. All rights reserved.