| 摘要: |
| 采用五分法采集农灌水（工业废水）、农田土壤、农作物和畜禽产品样品，并检测其中重金属元素汞（Hg）、砷（As）、铬（Cr）和镉（Cd）的含量。结果表明，4种重金属元素在农灌水和土壤中的含量由低到高分别依次为Hg＜Cd＜As＜Cr和Cd＜Hg＜As＜Cr，基本呈平行变化。7种农作物对4种重金属元素的吸收率有所不同，白菜、玉米、西红柿和豆角对Hg、As、Cr和Cd的吸收率较低，而菠菜和水稻对Hg和As、Cr的吸收率较高。此外，猪肉和鸡蛋中残留的Hg和As、Cr、Cd含量较低，而鸡、牛、羊肉中Hg、Cd和Cr含量较高。 |
| 关键词: 重金属，食物链，迁移规律 |
| DOI： |
| 分类号:S961.6 |
| 基金项目:山西省农业厅“生态农业研究”项目(95-0001) |
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| A study on the migrating rule of Hg,As,Cr,Cd elements in food chain |
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WANG Li xin 1,XIANG Jian hai 2,ZHOU Ling hua 2\j,WANG Li xin 1,XIANG Jian hai 2,ZHOU Ling hua 2\j,WANG Li xin 1,XIANG Jian hai 2,ZHOU Ling hua 2\j
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| Abstract: |
| The samples of irrigation water for agriculture,farmland soil,crops and animal products were collected through the five-divided method and were measured for the concentration of Hg,As,Cr and Cd.The results showed that the order of concentration of the four heavy metal elements in the water and soil was Hg＜Cd＜As＜Cr and Cd＜Hg＜As＜Cr,respectively.The absorptivity of seven crops for the four heavy elements was different.Te absorptivity of Hg,As,Cr and Cd and Hgto rice and spinach was higher,Moreover,the concentration of As,Cr,Cd and Hg remained in pork and eggs was lower,and the concentration of Hg,Cd and Cr in chicken,beef and mutton was higher. |
| Key words: heavy metal element food chain migrating rule |
