| 重金属元素摄入总量与健康安全评估——以湖南洞庭湖地区为例 |
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| 引用本文： | 余涛,;杨忠芳.重金属元素摄入总量与健康安全评估——以湖南洞庭湖地区为例[J].中国区域地质,2008(2):196-202. |
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| 作者姓名： | 余涛 ;杨忠芳 |
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| 作者单位： | [1]中国地质大学（北京）地质调查研究院,北京100083; [2]中国地质大学（北京）地球科学与资源学院,北京100083 |
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| 基金项目： | 中国地质调查局地质调查项目《中国区域生态地球化学评价方法体系研究》（编号：200414200011）、《湖南洞庭湖区农业生态地球化学评价》（编号：200314200021）和中国地质大学（北京）创新团队项目《生态地球化学研究与土地质量评估》资助.致谢：衷心感谢湖南省地质研究所张建新教授级高级工程师、邢旭东高级工程师和湖南省农业厅土壤肥料工作站黄铁平站长、夏海鳌科长和相关县市土肥站的工作人员在野外工作中给予的帮助和支持! |
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| 摘 要： | 粮食中重金属元素的含量水平直接关系到人体健康和社会安定与发展，是粮食安全性的重要反映。以洞庭湖产粮区系统采集的180套水稻、120件蔬菜样品为基础，采用相关标准分析、评价了样品中Cd、Hg、Pb、As等重金属元素的分布情况和安全性。研究结果表明：在以稻米为主食的每人日摄入量中，Hg、Pb均没有达到ADI（日允许摄入量）的限值，食品相对安全．而Cd的食品安全令人担忧。研究区稻米中绿色食品比例仅为60％，食品安全形势不客乐观，必须采取措施，保障人体健康的安全。
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| 关 键 词： | 重金属元素 摄入量 食品安全 人体健康 |
Intake amount of heavy metal elements and health and safety assessments--A case study of the Dongting Lake area,Hunan, China. |
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| Institution: | YU Tao, YANG Zhong-fang(1. Institute of Geological Survey, China University of Geosciences, Beijing 100083, China; 2. School of Earth Science and Resources, China University of Geosciences, Beijing 100083, China) |
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| Abstract: | Contents of heavy metal elements in food are directly related to human health and social stability and development and are important reflection of food safety, Based on 180 sets of rice samples and 120 pieces of vegetable samples collected systematically from a grain-producing area of the Tongting Lake, the authors analyzed and evaluated the distribution and safety of some heavy metal elements such as Cd, Hg, Pb and As by using the state relevant standards. Study shows that the daily intake amounts of Hg and Pb in rice-dominant food per person do not reach the limit values of Acceptable Daily Intakes （ADI）, So the food is relatively safe. However, the safety of food containing Cd makes one worried. In fact, the percentage of green food in rice in the study area is just 60%. The situation of food safety in the study area is not optimistic. So it is necessary to take effective measures to reduce the risk of heavy metals and guarantee human health. |
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| Keywords: | heavy metal element intake amount food safety human health |
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