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福建茶园土壤六六六和滴滴涕残留水平及来源分析

Keywords: 土壤,六六六,滴滴涕,茶园

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Abstract:

采用现场采样及室内测试方法,分析了福建茶园土壤中六六六(HCHs)和滴滴涕(DDTs)类有机氯农药(OCPs)的分布、组成和来源。结果表明,∑HCHs和∑DDTs浓度分别为0.251~1.120ng·g-1和0.210~2.406ng·g-1,属于清洁背景范围;漳浦、福鼎和福州茶园土壤∑OCPs浓度显著高于其他样点。除福州外,其他样点HCH同系物中γ-HCH相对含量最高,占HCHs总量的26.3%~76.3%。DDTs中以o,p′-DDT相对含量最高,为34.7%~60.8%。0~15cm土壤HCHs和DDTs浓度(分别为0.593ng·g-1和1.340ng·g-1)均高于15~30cm(0.451ng·g-1和0.862ng·g-1)。除福州β-/(α+γ)-HCH和α-/γ-HCH值较高外,其他样点均较低,表明福州HCHs为历史污染,其他样点均存在HCHs新输入,并可能存在林丹的使用或输入;除福鼎p,p′-DDE/p,p′-DDT值较高外,其他样点均较低,表明除福鼎外其他样点均有DDTs的新输入;o,p′-DDT/p,p′-DDT值均较高,表明可能有大量三氯杀螨醇的使用或输入。

References

[1]  Simonich S L,Hites R A,Global distribution of persistent organochlo-rine compounds,Science,1995.
[2]  HUANG Z,U Y,CHENA B,Simultaneous determination of 102 pesticide residues in Chinese teas by gas chromatography-mass spectrometry,Journal of Chromatography B:Biomedical Applications,2007.
[3]  林峥,麦碧娴,张干,沉积物中多环芳烃和有机氯农药的质量保证和质量控制,环境化学,1999(2).
[4]  马骁轩,冉勇,珠江三角洲土壤中的有机氯农药的分布特征,生态环境学报,2009(1).
[5]  安琼,董元华,王辉,葛成军,南京地区土壤中有机氯农药残留及其分布特征,环境科学学报,2005(4).
[6]  FU S,CHU S,XU X,Organochlorine pesticide residue in soils from Tibet,China,Bulletin ofEnvironmental Contamination and Toxicology,2001.
[7]  郑晓燕,刘成德,刘文杰,江桂斌,杨瑞强,卧龙自然保护区土壤中有机氯农药的浓度水平及来源分析,科学通报,2009(1).
[8]  张水铭,马杏法,安琼,六六六在土壤中持留和降解,土壤学报,1988(1).
[9]  Iwata H,Tanabe S,Sakai N,Distribution of persistent organochlorines in the oceanic air and surface seawater and the role of ocean on their global transport and fate,Environmental Science and Technology,1993.
[10]  Walker K,Vallero D A,Lewis R G,Factors influencing the distribution of lindane and other hexaehlorocyclohexanes in the environment,Environmental Science and Technology,1999.
[11]  Willett K L,Ulrich E M,Hites R A,Differential toxicity and environ mental fates of hexaehlorocyclohexane isomers,Environmental Science and Technology,1998.
[12]  TAO S,XU F L,WANG X J,Organochlorine pesticides in agricultural soil and vegetables from Tianjin,China Environmental Science and Technology,2005.
[13]  QIUXH,ZHU T,YAO B,Contribution of dicofol to the current DDT pollution in China,Environmental Science and Technology,2005.

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