黄河、渭河、北洛河交汇区芦苇和香蒲重金属污染分析  

Analysis of Heavy Metal Pollution in Reed and Cattail at Confluence Area of Yellow River,Wei River,and Beiluo River

作　　者：李吉锋 袁羽平 赵意茹 LI Jifeng;YUAN Yuping;ZHAO Yiru(College of Chemistry and Chemical Engineering,Shaanxi Xueqian Normal University,Xi′an 710100,China;Shaanxi Key Laboratory for Ecology and Environment of River Wetlands,Weinan 714099,China;College of Chemistry and Materials Science,Weinan Normal University,Weinan 714099,China)

机构地区：[1]陕西学前师范学院化学化工学院,陕西西安710100 [2]陕西省河流湿地生态环境重点实验室,陕西渭南714099 [3]渭南师范学院化学与材料学院,陕西渭南714099

出　　处：《化学与生物工程》2024年第5期60-63,共4页Chemistry & Bioengineering

基　　金：陕西省教育厅项目(19JS032);国家级大学生创新创业训练计划项目(S202210723016);陕西学前师范学院大学生创新创业训练计划项目(2023DC069)。

摘　　要：为了解黄河、渭河、北洛河交汇前后植物受重金属污染情况,在三河交汇区采集河流沿岸常见的芦苇和香蒲,采用原子吸收光谱法测定了芦苇和香蒲中Pb、Cr、Cd、Cu、Mn、Zn等重金属元素的含量,采用原子荧光法测定了Hg元素含量,分析了芦苇和香蒲中重金属含量超标情况,并通过生物质量指数法(综合评价污染法)评价了三河交汇前后芦苇和香蒲的重金属污染水平。结果表明,在三河交汇区采集的芦苇和香蒲样品中Pb、Cr、Cd含量总体异常;三河交汇前,北洛河同州湖段和渭河临渭区段的芦苇和香蒲样品中重金属污染等级均相对较低,但已处于污染状态;黄河赵渡镇段的芦苇和香蒲样品中重金属污染等级均相对较高,污染非常明显;三河交汇后,黄河港口镇段的芦苇和香蒲样品中重金属污染等级均相对升高,属于重污染。In order to understand the heavy metal pollution of plants before and after the confluence of Yellow River,Wei River,and Beiluo River,we collected common reed and cattail along the river at the confluence area of the three rivers,determined the contents of heavy metals such as Pb,Cr,Cd,Cu,Mn,and Zn in the reed and cattail by atomic absorption spectroscopy,and measured the content of Hg by atomic fluorescence spectroscopy.Moreover,we analyzed the situation of excessive heavy metal content in reed and cattail,and evaluated the heavy metal pollution level of reed and cattail before and after the confluence of the three rivers by the biological quality index method(comprehensive evaluation pollution method).The results show that the contents of Pb,Cr,and Cd in reed and cattail samples collected at the confluence area of the three rivers are abnormal.Before the confluence of the three rivers,the heavy metal pollution levels of reed and cattail samples from the Tongzhou section of Beiluo River and Linwei District section of Wei River are relatively low,but they are already in a pollution situation.The heavy metal pollution levels of reed and cattail samples from the Zhaodu Town section of Yellow River are relatively high,and the pollution is very obvious.After the confluence of the three rivers,the heavy metal pollution levels of reed and cattail samples from the Gangkou Town section of Yellow River relatively increase,and the pollution belongs to heavy pollution.

关 键 词：三河交汇 芦苇 香蒲 重金属污染 

分 类 号：O657.31[理学—分析化学] X522[理学—化学]