Full-Text Search:
Home|About CNKI|User Service|中文
Add to Favorite Get Latest Update

Concentration and Chemical Speciation of Cu,Zn,Pb in Wenzhou Urban Soils

CHEN Hua-lin,ZHOU Jiang-min,JIN Yu-bin,DU Ai-xue, YU Wei-feng,YANG Dong-xu (School of Life & Environmental Sciences,Wenzhou University,Wenzhou,Zhejiang 325027)  
Twenty-one urban soils and two control soils were sampled from the tourist zone,main road zone,residential zone,education zone,industrial zone and suburban agricultural zone in the city of Wenzhou for the study of the pollution situation of heavy metals in urban soils.The basic properties and the contents of Cu,Zn,Pb and Cd were measured for all soil samples.The results showed that the average contents of Cu,Zn and Pb were(34.59±18.29) mg/kg,(169.40±52.97) mg/kg,(65.22±26.86) mg/kg,respectively,all above the background values.The content of Cd were very low and weren't detectable for most samples.The results of fractionation showed that for Cu,Zn and Pb,the main fractions were residual and the proportions to total content were 60.17%,50.95%,47.33%,respectively. The smallest fractions were acid extractable for Cu and Pb,and reducible for Zn.The results of correlation analysis between the fractionation and the basic properties showed that organic matters were the main element to affect the content of chemical speciation of Cu,Zn in soils.While for Pb,there wasn't a significant correlation relationship between content of fractions and basic properties of soils.
Download(CAJ format) Download(PDF format)
CAJViewer7.0 supports all the CNKI file formats; AdobeReader only supports the PDF format.
©CNKI All Rights Reserved