摘要
对奎河徐州段中的5个采样断面的柱状沉积物样品进行了试验研究,分析了As、Cu、Cd、Cr、Pb和Zn等6组重金属的浓度水平,解析了沉积物中重金属沿垂直方向的分布特征。各个断面柱状样品重金属的累积量测定值差异较大,各断面样品中重金属含量平均水平排序为:K5断面<K4断面<K3断面<K2断面,在K2断面上,所有的重金属元素含量都处于较高的水平。应用潜在生物风险指数法评价,各断面的RI值排序为:K5断面<K4断面<K3断面<K1断面<K2断面。
the sediments from 5 sampling cross- sections in Xuzhou section of Kui River were investigated experimentally and vertical distribution of As, Cu, Cd, Cr, Pb and Zn were obtained by data analysis. The heavy metal accumulation varied with sediments. The order of average level of heavy metals was K5 〈K4 〈K3 〈K2, and it had high levels in K2 sediment. According to the result of potential ecological risk index, the order of RI in different sediments was K5 〈K4 〈K3 〈 K1 〈K2.
出处
《广州化工》
CAS
2015年第16期151-153,201,共4页
GuangZhou Chemical Industry
关键词
奎河
沉积物
重金属
污染评价
Kui River
sediments
heavy metals
pollution assessment
