Mercury levels in an urban pregnant population in Durham County, North Carolina.
Mercury levels in an urban pregnant population in Durham County, North Carolina.
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DOI：
10.3390/ijerph8030698
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发表时间：
2011-03
影响因子：
--
通讯作者：
Maxson PJ
中科院分区：
文献类型：
--
作者：
Miranda ML;Edwards S;Maxson PJ
产前汞暴露的不利影响，最常见的是母亲食用鱼类，已被检测到在非常低的暴露水平。然而，在鱼类中发现的omega-3脂肪酸已被证明可以支持胎儿的大脑和视力发育。使用来自美国南部内陆地区孕妇的前瞻性队列研究数据，我们试图了解鱼类消费习惯和亚群之间的相关汞水平。超过30%的妇女血液中汞含量至少为1微克/升，约2%的妇女在怀孕期间血液中汞含量高于关注水平（≥3.5微克/升）。汞含量在亚洲/太平洋岛民、老年人、受过高等教育的妇女和已婚妇女中较高。在我们的研究中，2/3的女性报告了任何来源的鱼类消费，老年女性更有可能消费鱼类。尽管每周吃更多的鱼餐，但收入较低、受教育程度较低的妇女的血汞水平低于收入较高、受教育程度较高的妇女。这表明不同的人口群体消费不同类型的鱼。鼓励增加鱼类消费，同时最大限度地减少汞暴露，需要精心制作一个复杂的健康信息。
The adverse effects of prenatal mercury exposure, most commonly resulting from maternal fish consumption, have been detected at very low exposure levels. The omega-3 fatty acids found in fish, however, have been shown to support fetal brain and vision development. Using data from a prospective, cohort study of pregnant women from an inland area in the US South, we sought to understand the fish consumption habits and associated mercury levels across subpopulations. Over 30% of women had at least 1 μg/L of mercury in their blood, and about 2% had blood mercury levels above the level of concern during pregnancy (≥3.5 μg/L). Mercury levels were higher among Asian/Pacific Islander, older, higher educated, and married women. Fish consumption from any source was reported by 2/3 of the women in our study, with older women more likely to consume fish. Despite eating more fish meals per week, lower income, lower educated women had lower blood mercury levels than higher income, higher educated women. This suggests the different demographic groups consume different types of fish. Encouraging increased fish consumption while minimizing mercury exposure requires careful crafting of a complex health message.
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