Department of Environmental Sciences, Faculty of Natural Resources and Marine Science, Tarbiat Modares University, P.O. Box 46414-356, Noor, Mazandaran, Iran.
Ecotoxicol Environ Saf. 2011 Mar;74(3):294-300. doi: 10.1016/j.ecoenv.2010.07.045. Epub 2010 Dec 17.
Concentrations of polychlorinated biphenyls (PCBs), and organochlorine pesticides (OCPs), such as dichlorodiphenyltrichloroethane (DDT) and analogs, hexachlorocyclohexanes (HCHs) and hexachlorobenzene (HCB), were determined in 8 fish species collected during October and November 2007 from the largest Iranian wetland, the Shadegan Marshes. Fishes were selected on the basis of their importance in the local diet and feeding behavior. In all samples, OCPs were found in higher concentrations than PCBs. Common carp (Cyprinus carpio) had the highest OCs (1680 ng/g lipid wt.), with DDTs being most prevalent and p,p'-DDE contributing by 53-88% to the total DDTs. In all samples, OCs were found in order of DDTs>HCHs>PCBs>HCB. The highest concentration of HCHs was found in common carp (410±180 ng/g lipid wt.) and α-HCH was the predominant compound among HCH isomers (range 70-90%, mean 82%) in all species. All samples contained PCBs and CB 28 (37%) and CB 52 (26%) were the most frequently occurring congeners. common barbel (Barbus barbulus) (70±17 ng/g lipid wt.) exhibited the highest concentrations of HCB. OC levels in fish were relatively low, but the levels of several OCs in some of our specimens exceed the guidelines for food safety issued by the European Union (EU) and US Food and Drug Administration (FDA).
于 2007 年 10 月至 11 月，从伊朗最大的湿地沙德甘沼泽采集了 8 种鱼类样本，检测了多氯联苯（PCBs）和有机氯农药（OCPs），如滴滴涕（DDT）及其类似物、六氯环己烷（HCHs）和六氯苯（HCB）在这些鱼类中的浓度。这些鱼类是根据其在当地饮食中的重要性和摄食行为选择的。在所有样本中，OCPs 的浓度均高于 PCBs。鲤鱼（Cyprinus carpio）的 OCPs 含量最高（1680ng/g 脂质），滴滴涕最为普遍，p,p'-DDE 占滴滴涕总量的 53-88%。在所有样本中，OCs 的浓度顺序为滴滴涕>HCHs>PCBs>HCB。在所有鱼类样本中，均发现α-HCH 是 HCH 异构体中的主要化合物（范围为 70-90%，平均值为 82%），其浓度最高的是鲤鱼（410±180ng/g 脂质）。所有样本均含有 PCBs 和 CB 28（37%）和 CB 52（26%）是最常见的同系物。欧鲶（Barbus barbulus）（70±17ng/g 脂质）的 HCB 浓度最高。鱼类中的 OC 水平相对较低，但我们一些样本中的几种 OC 水平超过了欧盟（EU）和美国食品和药物管理局（FDA）发布的食品安全指南。
