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Heavy metals in maternal and cord blood in Beijing and their efficiency of placental transfer
Li, Aijing; Zhuang, Taifeng; Shi, Jianbo; Liang, Yong; Song, Maoyong
2019-06
Source PublicationJOURNAL OF ENVIRONMENTAL SCIENCES
ISSN1001-0742
Volume80Pages:99-106
AbstractThis study aimed to determine the effect of exposure to heavy metals in pregnant women in Beijing, China. We also evaluated the association of these heavy metals with birth weight and length of newborns. We measured the levels of 10 heavy metals, including lead (Pb), titanium (Ti), manganese (Mn), nickel (Ni), cadmium (Cd), chromium (Cr), antimony (Sb), stannum (Sn), vanadium (V), and arsenic (As), in 156 maternal and cord blood pairs. An inductively coupled plasma mass spectrometry method was used for measurement. Pb, As, Ti, Mn, and Sb showed high detection rates (>50%) in both maternal and cord blood. Fourteen (9%) mothers had blood Pb levels greater than the United States Center for Disease Control allowable threshold limit for children (50 mu g/L). In prenatal exposure to these heavy metals, there was no significant association between any heavy metal and birth weight/length. Moreover, we estimated the placental transfer efficiency of each heavy metal, and the median placental transfer efficiency ranged from 49.6% (Ni) to 194% (Mn) (except for Cd and Sn). The level and detection rate of Cd in maternal blood were much higher than that in cord blood, which suggested that Cd had difficulty in passing the placental barrier. Prospective research should focus on the source and risk of heavy metals in non-occupationally exposed pregnant women in Beijing. (C) 2018 The Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences. Published by Elsevier B.V.
Department环境纳米技术与健康效应重点实验室
KeywordHeavy metal Maternal blood Cord blood Newborn Placental transfer efficiency
Document Type期刊论文
Identifierhttp://ir.rcees.ac.cn/handle/311016/43194
Collection环境纳米技术与健康效应重点实验室
Affiliation1.Jianghan Univ, Inst Environm & Hlth, Wuhan 430056, Hubei, Peoples R China
2.Chinese Acad Sci, Res Ctr Ecoenvironm Sci, Key Lab Environm Nanotechnol & Hlth Effects, Beijing 100085, Peoples R China
3.Capital Med Univ, Beijing Obstet & Gynecol Hosp, Dept Pediat, Beijing 100026, Peoples R China
4.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
Recommended Citation
GB/T 7714
Li, Aijing,Zhuang, Taifeng,Shi, Jianbo,et al. Heavy metals in maternal and cord blood in Beijing and their efficiency of placental transfer[J]. JOURNAL OF ENVIRONMENTAL SCIENCES,2019,80:99-106.
APA Li, Aijing,Zhuang, Taifeng,Shi, Jianbo,Liang, Yong,&Song, Maoyong.(2019).Heavy metals in maternal and cord blood in Beijing and their efficiency of placental transfer.JOURNAL OF ENVIRONMENTAL SCIENCES,80,99-106.
MLA Li, Aijing,et al."Heavy metals in maternal and cord blood in Beijing and their efficiency of placental transfer".JOURNAL OF ENVIRONMENTAL SCIENCES 80(2019):99-106.
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