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岩溶农业区水环境中有机氯农药和多环芳烃的分布特征研究——以湖北黄粮地区为例 预览

Investigation of Organochlorine Pesticides and Polycyclic Aromatic Hydrocarbons in Water Environment of Karst Agricultural Region——Taking the Huangliang Area of Hubei Province as an Example
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摘要 为研究岩溶农业区水环境中有机氯农药(OCPs)和多环芳烃(PAHs)的迁移转化特征,为水污染防治提供依据,以湖北宜昌黄粮地区典型的岩溶农业区为例,对该地区水环境中各取样点OCPs和PAHs的污染状况进行了调查研究,并对水环境中持久性有机污染物的生态风险进行了综合评价。结果表明:研究区水体中29种OCPs均被检出,各取样点水样中OCPs的含量范围为1.73~497.81ng/L,其中雾龙洞水样中OCPs的含量异常高,整体上表现为地下水体中OCPs的检出种类数量高于地表水,地表水体中OCPs的检出含量高于地下水体;各取样点水样中PAHs的含量范围为84.79~263.74ng/L;研究区水体中OCPs的含量均未超出饮用水水质标准,但某些地方的水体中PAHs的含量超出了荷兰《地下水水质标准》中规定的限值,说明部分水体已有一定程度的PAHs污染,应当引起相关部门的注意;研究区水环境中的持久性有机污染物具有"高检出率,低检出量"的特点,整体上看污染水平低,生态风险小。 In order to study migration and transformation features of Organochlorine Pesticides(OCPs)and Polycyclic Aromatic Hydrocarbons(PAHs)in the water environment of karst agricultural areas and provide basis for the prevention and control of water pollution,this paper takes the karst agricultural district of Huangliang,Yichang,Hubei Province as a typical example,investigates the pollution condition of OCPs and PAHs and comprehensively evaluates the ecological risk of Persistent Organic Pollutants(POPs)in the water environment in the area.The results show that 29 kinds of OCPs are all detected in the water of the study area,with the content of OCPs in water samples ranging from 1.73 to 497.81 ng/L,the content of OCPs in Wulong Cave is abnormally high,the overall detection rate of groundwater is higher than that of surface water,and the detected content of surface water is higher than that of groundwater;PAHs in water samples rangs from 84.79 to 263.74 ng/L,the concentrations of OCPs in water do not exceed the standards for drinking water quality.However,PAHs in some water bodies exceed the limits in the Quality Standards for Groundwater of the Netherlands,indicating that some of the water bodies are already at a certain level of PAHs pollution,which should be concerned by the relevant departments.Persistent Organic Pollutants in the water environment of the study area have high detection rate and low detection content,and their ecological risk is small.
作者 贾晓青 王慧婷 周宏 JIA Xiaoqing1 , WANG Huiting2 , ZHOU Hong3 (1. Periodical Press, China University of Geosciences (Wuhan ) , Wuhan 430074, China ; 2. School of Environmental Studies, China University of Geosciences (Wuhan ) , Wuhan 430074, China; 3. Institute of Geological Survey, China University of Geosciences (Wuhan ) ,Wuhan 430074, China)
出处 《安全与环境工程》 CAS 北大核心 2018年第3期61-66,共6页 Safety and Environmental Engineering
关键词 岩溶农业区 水环境污染 有机氯农药(OCPs) 多环芳烃(PAHs) 生态风险 湖北黄粮地区 karst agriculture area water environment pollution Organochlorine Pesticides (OCPs) Polycyclic Aromatic Hydrocarbons(PAHs) ecological risk Huangliang area of Hubei Province
作者简介 贾晓青(1963-),女,编审,主要从事编辑出版与环境地质方面的研究工作。E-mail:aqyhj@cug.edu.cn;通讯作者:周宏(1962-),男,副教授,主要从事水文地质与环境地质方面的研究工作。E-mail:zhouhong@cug.edu.cn
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