延安大学校园植物叶片镉污染的现状分析

摘要

Take Yan＇an University Campus as the area of investigation and sampling,The contents of cadmium in the leaves of Juniper were studied.Index of air environment pollution of plants was introduced to study the relationship between the content of cadmium in leaves and air pollution in Yan＇an University campus,thus indicating air environment quality in Yan＇an University campus.The result indicated that the contents of cadmium in leaves of plant in Yan＇an University campus were higher than that in clean control place,but seriously cadmium pollution didn＇t occur;the cadmium pollution in the area of important traffic hubs and vehicle stations was medium.Therefore,it was without seriously cadmium pollution in Yan＇an University campus.%以延安大学校园为调查和采样区域,进行植物小刺柏叶片镉污染状况的研究。引入单项污染指数法,评价植物镉污染状况,以此指示延安大学校园的大气环境质量。结果表明,延安大学校园植物叶片的镉含量均高于清洁对照区,但未出现严重镉污染状况;主要交通枢纽、车辆停靠区域属于中度污染;延安大学校园大气环境中无严重镉污染。