Conference on Environmental Pollution and Public Health
Assess Vegetable Field Soil Heavy Metal Pollution in Dagu River Watershed
Jinheng ZHANG1, Junqiang WANG2, Dongmei CHEN1, Dapeng LI1
1
Institute of Eco-environment & Agriculture Information,Engineering Research Center of High Performance Polymer and Molding Technology,Qingdao University of Science and Technology, Qingdao,China, 266042
2
Qingdao Station for Popularizing Agricultural Techniques, Qingdao,China, 266000 Email: zjh-nhl@163.com
Abstract: Dagu river basin was selected as the studied region. pH values and heavy metal contents (Ni Zn, harmful, Pb, Cu, Cr) were analyzed. According to agricultural environmental quality standard, single factor pollution index method and Nemero index of pollution were used to assess the soil environment. Research results showed that Ni had the largest single factor pollution index among the five kinds of heavy metals. Nemero indeices of pollution didn't exceed 0.7 among these five kinds of heavy metals. The soil pollution degree of Dagu river watershed was safe, and the pollution level was clean. Keywords: Vegetable Field Soil, heavy metal, single factor pollution index , Nemero index of pollution index
大沽河流域菜田土壤重金属污染评价
张金恒 ,王军强 2,陈冬梅 1,李大鹏 1
1
1
青岛科技大学生态环境与农业信息化研究所,高性能聚合物及成型技术教育部工程研究中心,青岛,中国,266042
2
青岛市农业技术推广站,青岛,中国,266000 Email: zjh-nhl@163.com
摘 要: 以大沽河流域菜田土壤为研究对象, 经过野外布点调查采样和室内分析对蔬菜地土壤的 pH 含量和 五种有害重金属(Ni,Zn,Pb,Cu,Cr)含量进行了分析测试.分别采用单因子污染指数法和内梅罗综合 污染指数法,依据食用农产品产地环境质量标准对土壤中重金属的污染现状进行评价.研究结果表明上述 五种重金属单因子污染指数最大的是 Ni,菜田土壤五种重金属综合污染指数均未超过 0.7,污染程度为安 全,污染等级为清洁. 关键词: 菜田土壤;重金属;单因子污染指数法;内梅罗综合污染指数法
1 引言
我国北京,上海,杭州,成都,西安,南京,天 津和南昌等大中城市对菜地土壤和蔬菜重金属污染情 况都进行过较详细的调查研究,基本上了解了重金属 污染的情况. 陈同斌等从 1999 年开始先后检测了北京 市 1500 多个土壤和蔬菜样品中的重金属(As, Cd, Cr, Cu,Hg,Ni,Pb,Zn 等)含量,发现与北京市土壤铅 背景值相比,北京市蔬菜基地的土壤铅平均积累指数 为 1.21, As, Cd, 的含量明显偏高, Cr 积累现象明显. 北京市各大类和各品种蔬菜 Ph,As,Cd,Cr 的平均 值与相应的卫生标准相比,铅的综合超标率为 9.2%,
资助项目:青岛市科技计划项目(08-2-1-36-nsh)和(09-1-1-53-nsh)

下一页