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DISTRIBUTION CHARACTERISTICS AND GENETIC ANALYSIS OF HEAVY METALS IN NEAR-SURFACE ATMOSPHERIC DUSTFALL IN TANGSHAN |
CHEN Zhi-xian1, LUAN Wen-lou2 |
1. Fujian Geologic Surveying and Mapping Institute,Fuzhou 350109,China;
2. Institute of Natural Resources and Environmental Engineering, Shijiazhu-ang University of Economics, Shijiazhuang 050031, China |
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Abstract Based on statistics and analysis of eight heavy metal elements in near-surface atmospheric dustfall of Tangshan, the authors found the existence of obvious differences and the uneven distribution of heavy metal pollution. Based on the Kriging interpolation analysis of the eight heavy metal elements in near-surface atmospheric dustfall, the authors have reached the conlcusion that the distribution features of the eight kinds of metals have a somewhat identical high value in this area, with the South Lake park as the center. This anomaly area extends northeast and northwest. Based on principle component analysis, it is held that the heavy metals in near-surface atmospheric dustfall of Tangshan are mainly attributed to coal and traffic sources. The results obtained provide basic information for the understanding of the air quality and atmospheric environment pollution in Tangshan City and the performance of urban planning.
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Received: 15 October 2010
Published: 15 December 2011
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