PCB and PCDD/F concentrations and congener specific profiles were determined in seafood (fish, cepha- lopods, 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 pol- lutant 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 ana- lyzed can be considered safe considering the levels obtained and the in-force legislation.
PCBs and PCDD/PCDFs in fishery products: occurrence , congener profile and compliance with European Union Legislation
BARONE, GRAZIA;GAROFALO, RITA;STORELLI, Maria Maddalena
2014-01-01
Abstract
PCB and PCDD/F concentrations and congener specific profiles were determined in seafood (fish, cepha- lopods, 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 pol- lutant 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 ana- lyzed can be considered safe considering the levels obtained and the in-force legislation.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
