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

引用本文:	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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丹东地区土壤环境质量背景值调查与评价
郑存德¹, 宁梅², 王功岳³
1.辽东学院;2.辽宁省丹东生态环境监测中心;3.丹东市生态环境事务服务中心

摘要:

为明确丹东地区土壤背景点环境质量现状，“十三五”时期，采集丹东地区土壤背景点土壤样品75份，测定样品中部分无机元素、有机农药的含量，用单因子法评价其环境质量。结果表明:土壤剖面Ａ、Ｂ、Ｃ三层金属含量锌?铬?铅?铜?镉；随土壤深度增加，锌、铬、铅、铜含量先降低后升高，Ａ层土壤镉元素含量显著高于Ｂ、Ｃ层，镉在土壤表层积累。一个背景点位镉轻微污染，其他点位无污染。土壤剖面Ａ、Ｂ、Ｃ三层非金属元素含量氟?砷?硒。氟元素含量随土壤深度增加而增加；砷元素含量随土壤深度增加缓慢降低；硒元素在土壤剖面含量比较稳定；背景点土壤剖面Ａ、Ｂ、Ｃ三层多环芳烃总量?酞酸酯总量?666总量?DDT总量，多环芳烃、酞酸酯在Ｂ层积累，新型农药可能正在污染土壤。

关键词: 丹东;土壤剖面;背景点;无机元素;有机农药

DOI：

分类号:X824

基金项目:

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