State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang 550002, PR China.
Environ Pollut. 2011 Apr;159(4):1017-22. doi: 10.1016/j.envpol.2010.12.024. Epub 2011 Jan 26.
Fish consumption is considered the primary pathway for MeHg (MeHg) exposure; however, MeHg exposure also occurs through rice ingestion. Rice is grown in an aquatic environment and although documented MeHg concentrations in rice are lower compared to fish tissue, human exposures exceed international guidelines in some regions where rice is a staple food and rice MeHg levels are elevated. Studies concerning human health exposure to MeHg should also include populations where maternal MeHg exposure occurs through ingestion of rice. Rice does not contain long-chain polyunsaturated fatty acids, which are associated with confounding developmental outcomes in offspring. Rice is also a staple food for more than half the world's population; therefore, it is critical to investigate the potential health risks of maternal ingestion of rice to the developing fetus, the most susceptible population to the deleterious effects of MeHg. Data concerning MeHg in rice are reviewed and micronutrients in rice are discussed.
鱼类消费被认为是汞（MeHg）暴露的主要途径；然而，通过摄入大米也会接触到 MeHg。大米生长在水生环境中，尽管大米中的 MeHg 浓度低于鱼类组织中的浓度，但在一些以大米为主食且大米 MeHg 水平升高的地区，人类的暴露量超过了国际标准。涉及人类健康接触 MeHg 的研究也应包括那些通过摄入大米而使母体 MeHg 暴露的人群。大米不含长链多不饱和脂肪酸，后者与后代发育结果的混杂有关。大米也是世界上一半以上人口的主食；因此，调查母体摄入大米对发育中胎儿的潜在健康风险至关重要，因为胎儿对 MeHg 的有害影响最敏感。本文回顾了大米中 MeHg 的相关数据，并讨论了大米中的微量营养素。
