Jung Myung Chae, Yun Seong-Taek, Lee Jin-Soo, Lee Jong-Un
Department of Earth Resources and Environmental Geotechnics Engineering, Semyung University, 390-711 Jecheon, Choongbuk, South Korea.
Environ Geochem Health. 2005 Sep;27(5-6):455-64. doi: 10.1007/s10653-005-4221-2.
In 2000, 63 (polished) white rice samples were collected in eight administrative areas all over South Korea and analyzed for 16 elements by inductively coupled plasma atomic emission spectrometry (ICP-AES). Potassium had the highest content, next to Mg, Ca, Si, Zn, Na, Al and Fe. Most of the samples contained worldwide average concentrations of essential and trace elements in rice grains reported by various researches. For inter-area differences in those elements in the rice, the statistical analysis showed no significant differences (p > 0.05) among the eight administrative areas, suggesting that inter-area differences were not substantial in most cases. Thus, the present data can be used as national background levels of elements in rice produced in South Korea. Using the published data on daily consumption of rice in South Korea, it was possible to estimate the daily intake of As, Cd, Cu, Pb and Zn via rice. The results showed that a regular consumption of rice produced in Korea plays an important role in accumulation of essential and trace elements in Korean, especially for farm-households consuming relatively large amounts of rice.
2000年，在韩国各地的八个行政区采集了63份（精制）白米样本，并用电感耦合等离子体原子发射光谱法（ICP - AES）分析了其中16种元素。钾含量最高，其次是镁、钙、硅、锌、钠、铝和铁。大多数样本所含的必需元素和微量元素浓度为各项研究报告的全球稻米平均浓度。对于稻米中这些元素的地区间差异，统计分析表明八个行政区之间无显著差异（p > 0.05），这表明在大多数情况下地区间差异并不显著。因此，本数据可作为韩国产稻米元素的全国背景水平。利用韩国公布的大米日消费量数据，能够估算通过大米摄入的砷、镉、铜、铅和锌的每日摄入量。结果表明，经常食用韩国产大米对韩国人必需元素和微量元素的积累起着重要作用，尤其是对于食用大米量相对较大的农户而言。
