| 拉萨市区大棚蔬菜重金属污染现状分析及评价 |
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| 引用本文： | 旦增,洛桑,李承鼎,赵立成,陈世伟,王磊,李海玲,次仁多吉,罗布次仁,洛桑群培.拉萨市区大棚蔬菜重金属污染现状分析及评价[J].西藏大学学报,2011(2):31-35,45. |
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| 作者姓名： | 旦增 洛桑 李承鼎 赵立成 陈世伟 王磊 李海玲 次仁多吉 罗布次仁 洛桑群培 |
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| 作者单位： | 西藏大学理学院,西藏拉萨850000 |
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| 基金项目： | 2009年度国家大学生创新性试验计划项目“拉萨市区大棚蔬菜污染现状分析及评价研究”阶段性成果,项目号：091069407 |
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| 摘 要： | 蔬菜是人们日常生活中不可或缺的食物。蔬菜品质的优劣直接影响着A．417的健康水平。课题组通过实验方法对拉萨市区大棚蔬菜中Pb、As、Cr、Cd含量进行了分析研究。研究表明，拉萨市区大棚蔬菜样品中Pb、As、Cr、Cd超标率分别为11．36％、63．64％、27．27％、52．27％；四种重金属最大超标倍数分别达到1．40、7．04、1．78、3．02倍。文章认为，拉萨市区大棚蔬菜受到了一定程度的重金属污染，主要为As和Cd污染。
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| 关 键 词： | 拉萨市区 大棚蔬菜 重金属 分析 评价 |
Analysis and Evaluation on heavy metal pollution status of green house vegetables in Lhasa region |
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| Institution: | Dan Zeng Luo Sang Li Chen-ding ZhaoLi-cheng Chen Shi-wei Wang Lei Li Hai-ling Ciren-Duoji Luobu-Ciren Lusang-Qunpei (Science School of Tibet University, Lhasa 850000, Tibet) |
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| Abstract: | The quality of vegetable impacts people＇s health level directly as an important food in people＇s daily life. In this paper, the contents of heavy metal such as Pb, As, Cr, Cd on green house vegetables were analyzed by experimental method in Lhasa region. The results showed that over standard rate of Pb, As, Cr, Cd in the samples of green house vegetable is 11.36%, 63.64%, 27.27% and 52,27% respectively, and the largest value of four different heavy metals is up to 1.40, 7.04, 1.78 and 3.02 times of standard value respectively. This indicates that the green house vegetables were contaminated with heavy metals, in certain degrees, mainly with As and Cd in Lhasa region, and this study also provided controlling measurements of heavy metal pollution. |
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| Keywords: | Lhasa region Green house vegetable Heavy metal Analysis Evaluation |
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