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Geoscience ›› 2012, Vol. 26 ›› Issue (4): 829-836.

• Engineering Geology and Environmental Geology • Previous Articles    

Soil Heavy Metal Pollution in a Industrial Site of North China

 FU  Qian-Qian, WANG  An-Cai   

  1. School of Water Resources and Environment, China University of Geosciences, Beijing100083, China
  • Received:2012-02-27 Revised:2012-05-22 Online:2012-08-18 Published:2012-08-24

Abstract:

The analytical methods of mathematical statistics and geostatistics are used to explore the spatial distribution features and the correlation between different soil heavy metal elements in a industrial site of North China in this paper. The results indicate that these heavy metal elements are of certain degree of accumulation in the study area, and the average concentration of Hg is higher than the level three standard value of national Environmental Guality Standard for Soil and local soil background value. It suggests that the pollution of Hg is the most serious, and it is considered as a dominant element causing soil heavy metal pollution in the site. In general, according to pollution degree, the heavy metal elements are orderly Hg,Zn,Cd,Mn,Pb,Cu,Cr and As, of which the average concentration of As is closing to the local soil background value. In addition, Hg, Cd, Mn, Fe and Co have the moderate degree of spatial correlation, it provides the basis on pollutants and pollution source identification. The soil heavy metal pollutions of the 1, 4, 8 and 9 plants are the most serious, and the types of contaminants have a certain relationship with their special operating processes, which provides an important basis for the work of prevention and controlling in the future.

Key words: North China, industrial site, soil heavy metal, spatial distribution, geostatistics