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安徽农田表层土壤中有机氯农药的分布及其组成
引用本文:王兴琴,花日茂,潘锦勇,高倩,李学德,操海群,吴祥为,唐俊. 安徽农田表层土壤中有机氯农药的分布及其组成[J]. 应用生态学报, 2011, 22(12): 3285-3292
作者姓名:王兴琴  花日茂  潘锦勇  高倩  李学德  操海群  吴祥为  唐俊
作者单位:1.安徽农业大学资源与环境学院安徽省农产品安全重点实验室, 合肥 20036;2安徽省霍邱县植保站, 安徽霍邱 237400;3安徽省霍邱县马店镇农业综合服务站, 安徽霍邱 237400
基金项目:“十二五”国家科技支撑计划项目(2011BAD12B04)资助
摘    要:以安徽省寿县等19个地区的农田表层土壤(0~20 cm)为对象,采用超声波提取,气相色谱法/电子捕获检测器(GC/ECD)检测,分析了α-六六六、β-六六六、γ-六六六、δ-六六六、op′-DDE、pp′-DDD、α-硫丹和百菌清等8种有机氯农药(OCPs)在农田表层土壤中的分布及组成特征.结果表明: 19个取样点中8种有机氯农药残留的总含量范围为ND~23.75 μg·kg-1,其中PP′-DDD、γ-HCH为主要污染物,平均质量浓度分别为13.83和13.49 μg·kg-1.与1990年的调查结果相比,六六六平均值含量呈明显下降趋势;与国内外土壤相比,安徽省农田表层土壤中的六六六(HCHs)处于中等偏高的水平.安徽省农田表层土壤中OCPs、HCHs和pp′-DDD平均浓度分别为48.58、28.64和13.83 μg·kg-1,均未超过《土壤环境质量标准》(GB 15618-1995)的一级土壤质量标准(<50 μg·kg-1),污染较轻.

关 键 词:安徽  有机氯农药  分布  组成  

Distribution and composition of organochlorine pesticides in farmland top soils of Anhui Province
WANG Xing-qin , HUA Ri-mao , PAN Jin-yong , GAO Qian , LI Xue-de , CAO Hai-qun , WU Xiang-wei , TANG Jun. Distribution and composition of organochlorine pesticides in farmland top soils of Anhui Province[J]. The journal of applied ecology, 2011, 22(12): 3285-3292
Authors:WANG Xing-qin    HUA Ri-mao    PAN Jin-yong    GAO Qian    LI Xue-de    CAO Hai-qun    WU Xiang-wei    TANG Jun
Affiliation:1.Anhui Province Key Laboratory of Agricultural Food Safety, College of Resources and Environment, Anhui Agricultural University, Hefei 230036, China;2.Huoqiu Plant Protection Station, Huoqiu 237400, Anhui, China;3.Madian Agricultural Service Station, Huoqiu 237400, Anhui, China
Abstract:By using ultrasonic method and GC/ECD, this paper analyzed the distribution and composition of 8 kinds of organochlorine pesticides (alpha-HCH, beta-HCH, gamma-HCH, delta-HCH, op'-DDE, pp'-DDD, alpha-endosulfan, and chlorothalonil) in farmland top soils (0-20 cm) in 19 districts of Anhui Province, East China. The total concentration of the pesticides in the top soils ranged from 0 to 23.75 microg x kg(-1), among which, pp'-DDD and gamma-HCH were the major pollutants, with the mean concentration being 13.83 and 13.49 microg x kg(-1), respectively. As compared with the analyses in 1990, the present mean concentration of HCH had an obvious decreasing trend, but was still higher than that in the top soils in other regions of China and in other countries. The mean concentrations of OCPs, HCHs and pp'-DDD in the test top soils were 48.58, 28.64 and 13.83 microg x kg(-1), respectively, not surpassed the first grade level (< 50 microg x kg(-1)) of the China National Soil Environmental Quality Standards (GB 15618-1995), suggesting that the farmland top soils in these districts of Anhui Province were less polluted.
Keywords:Anhui Province  organochlorine pesticide  distribution  composition.  
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