Neurotoxic effects of low-level methylmercury contamination in the Amazonian Basin
Neurotoxic effects of low-level methylmercury contamination in the Amazonian Basin
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DOI：
10.1006/enrs.1998.3846
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发表时间：
1998-10-01
影响因子：
8.3
通讯作者：
Dolbec, J
中科院分区：
文献类型：
--
作者：
Lebel, J;Mergler, D;Dolbec, J
许多研究表明，亚马逊生态系统中存在汞污染，特别是鱼类，鱼类是该地区人口的主要饮食来源。本研究的重点是这种低水平甲基汞暴露的潜在健康影响。这项研究是在亚马逊河支流Tapajos河上的一个村庄进行的，研究对象是91名成年居民（15-81岁），他们的头发汞含量低于500 mu/g。神经功能测试电池和神经系统功能障碍的临床表现的性能进行了检查与头发汞浓度。近视觉对比敏感度和手的灵活性，经年龄调整后，随着发汞水平的升高而显著降低（P
Many studies have demonstrated mercury contamination in the Amazonian ecosystem, particularly in fish, a dietary mainstay of populations in this region. The present study focused on potential health effects of this low-level methylmercury exposure. The study was carried out in a village on the Tapajos River, a tributary of the Amazon, on 91 adults inhabitants (15-81 years), whose hair mercury levels were inferior to 500 mu/g. Performance on a neurofunctional test battery and clinical manifestations of nervous system dysfunction were examined in relation to hair mercury concentrations. Near visual contrast sensitivity and manual dexterity, adjusted for age, decreased significantly with hair mercury levels (P