丹东地区土壤环境质量背景值调查与评价

郑存德; 宁梅; 王功岳

Cite this article:	郑存德,宁梅,王功岳.丹东地区土壤环境质量背景值调查与评价[J].灌溉排水学报,0,():-.
	ZHENGCUNDE,Ning Mei,Wang Gongyue.丹东地区土壤环境质量背景值调查与评价[J].灌溉排水学报,0,():-.

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Investigation and evaluation of background value of soil environmental quality in Dandong Area
ZHENGCUNDE¹, Ning Mei², Wang Gongyue³
1.Eastern Liaoning university;2.Liaoning Dandong ecological environment monitoring center;3.Dandong ecological and Environmental Affairs Service Center
Abstract:
In order to clarify the current situation of environmental quality of soil background points in Dandong area, during the 13th Five Year Plan period, 75 soil samples of soil background points in Dandong area were collected, the contents of some inorganic elements and organic pesticides in the samples were determined, and the environmental quality was evaluated by single factor method. The results show that the metal content of soil profile a, B and C is zinc ? chromium ? lead ? copper ? Cadmium; With the increase of soil depth, the contents of zinc, chromium, lead and copper decreased first and then increased. The content of cadmium in layer a was significantly higher than that in layer B and C, and cadmium accumulated in the soil surface. One point is slightly polluted by cadmium, and the other points are not polluted.. Fluorine content of non-metallic elements in layers A, B and C of soil profile ? arsenic ? Selenium. The content of fluorine increased with the increase of soil depth; The content of arsenic decreased slowly with the increase of soil depth; The content of selenium in soil profile is relatively stable; Total polycyclic aromatic hydrocarbons in layers A, B and C of soil profile at background point ? Total phthalate ? 666 total ? The total amount of DDT, polycyclic aromatic hydrocarbons and phthalates accumulate in layer B, and new pesticides may be polluting the soil.
Key words: Dandong area; Soil profile; Background position; Inorganic elements; Organic pesticide