The Analysis on the Enrichment Factors and Source of Heavy Metal Pollution in Sediments of Dongzhai Port,Hainan Island
Based on the systematic collection of surface and deep sediment samples in Dongzhai Harbor,Hainan Island,the heavy metal pollution in surface sediments was evaluated by single factor pollution index method.The results showed as follows:(1)the contents of Cd,Cr,Cu,Hg,Ni and Zn 6 in surface sediments in the study area were slightly higher than the background values of Qiongzhou Strait sediments;(2)the results of soil accumulation index showed that the heavy metals As and Pb in the surface sediments of the study area belonged to the clean level,Zn is in light to heavy pollution level;(3)in the surface sediments of the study area,the anthropogenic pollution of Cr,Cu,Ni,Pb and Zn were mainly light pollution,and the anthropogenic pollution of As,Cd and Hg were light pollution and moderate pollution.The above-mentioned polluted areas were mainly distributed in the relatively densely populated areas near Yanhai Town and Yanfeng Town,as well as the west bank of Dongzhai Port where people gathered;(4)As in the sediments of the study area are related to the sources of agricultural activities,Cd,Cr,Cu,Hg,Ni,Pb and Zn are related to rock weathering and industrial activities.
heavy metalsedimentenrichment factoranthropogenic pollutionDongzhai Port
NETL
NSTL
万方数据
