大庆贴不贴泡沉积物重金属污染及聚类分析

Pollution and the Cluster Analysis of Heavy Metals in Sediment of Tiebutie Pool in Daqing

通过对大庆贴不贴泡沉积物重金属含量的分析测定,表明贴不贴泡沉积物中Hg、As、Cd、Cu等重金属含量呈东南向西北递减的变化特点,重金属含量的大小顺序是Zn〉Cr〉Pb〉Cu〉Ni。通过对贴不贴泡沉积物重金属超标倍数计算,表明超标倍数最大的重金属是Cd。聚类分析表明沉积物重金属元素中,Hg、As、Cd、Ni可归为一类型,Zn、Pb可归为一类型,Cr、Cu可归为一类型,共分3类。在沉积物重金属采样点中,T6-T16可归为一类型,T1-T5可归为一类型,重金属含量较高。

This paper dealt with the contents of heavy metals in surface sediments from Tiebutie Pool,The result showed that the contents of Hg, As,Cd and Cu appear gradually depressive from southeast to northwest,The computed result of the heavy metals＇ multiple that exceeds standard showed that the biggest is Cd,which the cluster analysis showed that Hg、As、Cd、Ni may be a type,Zn、Pb may be a type,Cr 、Cu may be a type in the heavy metals.The T6～T16 may be a type,T1～T5 may be a type in the sampling sites.