Barone Grazia, Giacominelli-Stuffler Roberto, Garofalo Rita, Castiglia Domenico, Storelli Maria M
Biosciences, Biotechnology and Biopharmaceutical Department, University of Bari, Strada Prov. le per Casamassima Km 3, 70010 Valenzano (Ba), Italy.
Comparative Biomedical Sciences Department, University of Teramo, Piazza A. Moro 45, 64100 Teramo, Italy.
Food Chem Toxicol. 2014 Dec;74:200-5. doi: 10.1016/j.fct.2014.09.020. Epub 2014 Oct 13.
PCB and PCDD/F concentrations and congener specific profiles were determined in seafood (fish, cephalopods, crustaceans) purchased in supermarkets in Southern Italy. The results intended to assess and compare the levels and congener profiles among the various organisms and evaluate whether the pollutant concentrations exceed the maximum permitted levels according to European Union guidelines. Contaminant accumulation followed the order PCBs > PCDFs > PCDDs in all samples. Species-specific bioaccumulation of contaminants and differences in PCB and PCDD/F profiles among the three different groups of seafood were noted. Pollutant concentrations, given as sum of WHO-TEQ, in all samples (fish: 0.28 pg g(-1) wet wt; cephalopods: 0.01 pg g(-1) wet wt; crustaceans: 0.03 pg g(-1) wet wt) did not exceed the maximum limits for human consumption. Also the sum of six indicator PCBs (fish: 0.07-16.7 ng g(-1) wet weight; cephalopods: 0.05-0.21 ng g(-1) wet weight; crustaceans: 0.07-0.57 ng g(-1) wet weight) was below the level prescribed by the legislation in all the species tested. The estimated dietary intakes (fish: 0.52 TEQs/kg bw/week; cephalopods: 0.01 TEQs/kg bw/week; crustaceans: 0.02 TEQs/kg bw/week) were below the tolerable weekly intake (TWI) proposed by the European Commission. Therefore, the samples analyzed can be considered safe considering the levels obtained and the in-force legislation.
对在意大利南部超市购买的海产品（鱼类、头足类动物、甲壳类动物）中的多氯联苯（PCB）、多氯二苯并二恶英/多氯二苯并呋喃（PCDD/F）浓度及同系物特定分布进行了测定。结果旨在评估和比较不同生物体中的含量水平和同系物分布，并根据欧盟指南评估污染物浓度是否超过最大允许水平。在所有样本中，污染物积累顺序为多氯联苯＞多氯二苯并呋喃＞多氯二苯并二恶英。注意到不同种类海产品中污染物的物种特异性生物累积以及多氯联苯和多氯二苯并二恶英/多氯二苯并呋喃分布的差异。以世界卫生组织毒性当量（WHO-TEQ）总和表示的所有样本中的污染物浓度（鱼类：0.28 pg g⁻¹湿重；头足类动物：0.01 pg g⁻¹湿重；甲壳类动物：0.03 pg g⁻¹湿重）未超过人类消费的最大限量。同样，六种指示性多氯联苯的总和（鱼类：0.07 - 16.7 ng g⁻¹湿重；头足类动物：0.05 - 0.21 ng g⁻¹湿重；甲壳类动物：0.07 - 0.57 ng g⁻¹湿重）在所有测试物种中均低于法规规定的水平。估计的膳食摄入量（鱼类：0.52 TEQs/kg体重/周；头足类动物：0.01 TEQs/kg体重/周；甲壳类动物：0.02 TEQs/kg体重/周）低于欧盟委员会提议的每周耐受摄入量（TWI）。因此，考虑到所获得的水平和现行法规，所分析的样本可被视为安全的。
