Laboratory of Environmental Analytical Chemistry (05/UR/12-03), University of Carthage, Faculty of Sciences, Bizerte 7021 Zarzouna, Tunisia.
Ecotoxicol Environ Saf. 2013 Feb;88:55-64. doi: 10.1016/j.ecoenv.2012.10.021. Epub 2012 Dec 6.
Information on the occurrence of persistent organic pollutants (POPs) in fish from Tunisia is scarce. In this study, thirty one persistent organic pollutants including organochlorine pesticides (OCPs) (dichlorodihenyltrichloroethane and its metabolites (DDTs), hexachlorocyclohexanes (HCHs) and hexachlorobenzene (HCB)), polychlorinated biphenyls (PCBs), polybrominated diphenyl ethers (PBDEs) and methoxylated polybrominated diphenyl ethers (MeO-PBDEs) were determined in solea solea muscle, from Bizerte Lagoon (northern Tunisia) and from the Mediterranean Sea (reference area) (northern Mediterranean). In the Bizerte Lagoon, contaminant concentrations generally followed this order: PCBs>DDTs>PBDEs>MeO-PBDEs>HCB>HCHs; while in the Mediterranean Sea, pollutant concentration followed this order: MeO-PBDEs>PCBs>DDTs>PBDEs>HCB>HCHs. Mean levels of organochlorine compounds were 1018 and 380 ng g(-1) lipid weight (lw) in fish from Bizerte Lagoon and the Mediterranean Sea, respectively. Mean concentrations of organobromine compounds were 279 and 301 ng g(-1) lw in sole from Bizerte Lagoon and the Mediterranean Sea, respectively. Organohalogen concentrations in fish from Bizerte Lagoon were similar or slightly lower than those reported for other marine fish species from other locations around the world. PCB, HCH, HCB and PBDE levels were negatively correlated with lipid content, while no such correlation was seen for DDTs. Assessment based on several available guidelines suggested an insignificant human health risk for dietary intake of HCB, lindane and PBDEs associated with consumption of sole. However, the estimated lifetime cancer risk from dietary exposure to DDTs and PCBs is a potential concern.
关于突尼斯鱼类中持久性有机污染物（POPs）的信息很少。在这项研究中，在比塞大泻湖（突尼斯北部）和地中海（参考区）（北地中海）的鲷鱼肌肉中测定了 31 种持久性有机污染物，包括有机氯农药（OCPs）（滴滴涕及其代谢物（DDTs）、六氯环己烷（HCHs）和六氯苯（HCB））、多氯联苯（PCBs）、多溴联苯醚（PBDEs）和甲氧基多溴联苯醚（MeO-PBDEs）。在比塞大泻湖中，污染物浓度通常遵循以下顺序：多氯联苯>滴滴涕>PBDEs>MeO-PBDEs>HCB>HCHs；而在地中海，污染物浓度遵循以下顺序：MeO-PBDEs>多氯联苯>滴滴涕>PBDEs>HCB>HCHs。比塞大泻湖和地中海鱼类中有机氯化合物的平均水平分别为 1018 和 380ng/g 脂重（lw）。比塞大泻湖和地中海鲷鱼中有机溴化合物的平均浓度分别为 279 和 301ng/g lw。比塞大泻湖鱼类中的有机卤化物浓度与世界其他地区其他海洋鱼类的报告值相似或略低。多氯联苯、HCH、HCB 和 PBDE 水平与脂肪含量呈负相关，而滴滴涕则没有这种相关性。基于几个可用指南的评估表明，食用鲷鱼摄入 HCB、林丹和 PBDEs 对人体健康的风险不大。然而，从饮食中接触滴滴涕和多氯联苯所估计的终生癌症风险是一个潜在的问题。
