| 常 红,徐 萌,仇雁翎,周轶慧,朱志良,赵建夫.上海典型区域散养鸡鸭组织器官中有机氯农药的残留水平及来源解析[J].农业环境科学学报,2014,33(9):1712-1720. |
| 上海典型区域散养鸡鸭组织器官中有机氯农药的残留水平及来源解析 |
| Levels and Sources of Organochlorine Pesticides in Tissues/Organs of Free-range Chickens and Ducks in Shanghai |
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| DOI：10.11654/jaes.2014.09.007 |
| 中文关键词: 有机氯农药 散养鸡鸭 组织 器官 淀山湖 金山第二工业区 |
| 英文关键词: organochlorine pesticides, free-range chickens and ducks, tissues, organs, Dianshan Lake, Jinshan Second Industry Zone |
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| 中文摘要: |
| 分析了上海淀山湖地区和金山第二工业区附近散养鸡、鸭组织器官中有机氯农药（Oｒｇａｎｏｃｈｌｏｒｉｎｅ ｐｅｓｔｉｃｉｄｅｓ， ＯＣＰｓ）的含量水平，并探讨了其组成特征和来源。所研究的２１种有机氯农药在样品中不同程度地检出，其中滴滴涕及其同系物（ＤＤＴｓ）、六六六四种同分异构体（ＨＣＨｓ）、六氯苯（ＨＣＢ）和五氯苯甲醚（ＰＣＡ）在所有样品中检出，它们在鸡、鸭组织器官中的含量分别为１．１~２８、０．５１～２．９、０．１８～３．５和０．０１０～０．３５ ｎｇ·ｇ－１ ｗｗ（湿重）。ＤＤＴｓ是最主要的有机氯农药残留物，在大部分样品中主要以４，４′－ＤＤＥ的形式存在，而金山第二工业区鸭的组织器官中ＤＤＴｓ的主要形式为２，４′－ＤＤＴ，推测可能与该区域鸭所生活的水体环境中有三氯杀螨醇的污染有关。ＨＣＨｓ同分异构体在不同地区鸡鸭组织器官中的组成特征不同，淀山湖地区的样品中ＨＣＨｓ同分异构体主要为β－ＨＣＨ，且α－ＨＣＨ和γ－ＨＣＨ所占比例相差不大；金山第二工业区的样品中α－ＨＣＨ、β－ＨＣＨ和γ－ＨＣＨ的残留水平相差不大，推测该研究区域的ＨＣＨｓ残留很有可能来自林丹的使用。除上述几种物质，其他有机氯农药在样品中的残留水平较低，在组织器官中的分布没有表现出明显差异。 |
| 英文摘要: |
| Organochlorine pesticides（OCPs） can enter human body through food chain. In this study, we investigated concentrations of OCPs in the tissues/organs of free-range chickens and ducks from Dianshan Lake area and the vicinity of Jinshan Second Industry Zone in Shanghai. The composition and sources of these OCPs were also explored. The concerned 21 compounds of OCPs were detected in various samples with different levels. Dichlorodiphenyltrichloroethane（DDT） and its congeners, four isomers of hexachlorocyclohexanes（HCHs）, hexachlorobenzene（HCB） and pentachloroanisol（PCA） were detected in all samples, with tissue concentrations of 1.1~28, 0.51~2.9, 0.18~3.5 and 0.010~0.35 ng·g-1 wet weight, respectively. DDTs were the most dominant OCP residues, with 4,4′-DDE being the major congener for most samples but 2,4′-DDT primary congener for ducks from Jinshan Second Industry Zone, likely due to dicofol pollution in the aquatic environment where the ducks lived. The major isomers of HCHs in tissues/organs of chickens and ducks were quite different from different areas. β-HCH was predominant isomer in the samples from Dianshan Lake, with similar lower proportions of α-HCH and γ-HCH, whereas α-HCH, β-HCH and γ-HCH had similar concentrations in the samples from Jinshan Second Industry Zone. This might imply that HCHs residues probably came from the usage of lindane in Jinshan Second Industry Zone. The rest compounds of organochlorine pesticides were much lower and showed little differences among different tissues/organs. |
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