内蒙古麻地壕灌区土壤中HCHs的残留水平和影响因素分析
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摘要
以内蒙古麻地壕灌区为研究区域,HCHs为目标污染物,采用气相色谱(Gas Chromatograp hy-Electron Capture Detector,GC-ECD)方法测定内蒙古麻地壕扬水灌区表层土壤中六六六(HCHs)的含量,分析该灌区HCHs的残留水平和来源。结果表明:土样中共检出4种HCH(α-HCH、β-HCH、γ-HCH、8-HCH),HCH的总量为1.333~21.120 ng/g,平均质量分数为8.995ng/g,其中8-HCH为主要污染物,平均质量分数为5.081 ng/g。同时对麻地壕灌区土壤的土质、有机质、pH、盐分和含水率进行了测试分析。
引文
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[2]金爱芳,何江涛,陈素暖,等.北京东南郊污灌区土壤有机氯农药的垂向分布特征[J].环境科学学报,2009,29(9):1970-1977.
[3]龚钟明,曹军,李本纲,等.天津地区土壤中六六六(HCH)的残留及分布特征[J].中国环境科学,2003,23(3):311-314.
[4]孟飞,张建,刘敏,等.上海农田土壤中六六六和滴滴涕污染分布状况研究[J].土壤学报,2009,46(2):361-364.
[5]陈敏,陈莉,黄平.乌鲁木齐地区土壤中有机氯农药残留特征及来源分析[J].中国环境科学,2014,34(7):1838-1846.
[6]MELNIKOV S,CARROLL J,CORSHKOV A,et al.Snow and ice concentrations of selected persistent pollutants in the Ob-Yenisey River watershed[J].Science of the Total Environment,2003,306(1-3):27~37.
[7]MEYER T,WANIA F.Organic contaminant amplification during snowmelt[J].Water Research,2008,42(8-9):1847-1865.
[8]HEGER D,JIRKOVS?J,KLAN P.Aggregation of methylene blue in frozen aqueous solutions studied by absorption spectroscopy[J].Journal of Physical Chemistry A,2005,109(30):6702-6709.
[9]NHAN D D,CARVALHO F,AM N M,et al.Chlorinated pesticides and PCBs in sediments and molluscus from freshwater canals in the Hanoi region[J].Environmental Pollution,2001,112(3):311-320.
[10]裴国霞,张岩,马太玲,等.黄河内蒙古段水体中六六六和多氯联苯的分布特征[J].水资源与水工程学报.2010,21(4):25-27.