This study reports on the accumulation of polybrominated diphenyl ethers (PBDEs) and polychlorobiphenyls (PCBs) in the muscle tissue of 11 species of fish from the Ionian Sea (Western Mediterranean). The results are consistent with previous studies that have reported now-generalized contamination by PCBs of the Mediterranean marine environment, as well as widespread diffusion of emerging contaminants such as polybrominated diphenyl ethers (PBDEs). The Western Mediterranean Sea, from which the 11 fish species were collected, receives a heavy pollutant input from the urban and industrial areas along its coasts. Higher values of PCBs (average over 1.5 mg/kg f.w.) were observed in pelagic top predators (little tuna, bluefin tuna and swordfish). These same species also showed higher levels of PBDEs, averaging above 0.5 ng/g f.w. This puts a few fish species at the top of the food chain—such as bluefin tuna and swordfish—at particular risk, and the importance of these species in the human diet suggests the need for particular care in our food choices.
KeywordsPBDEsPCBsFish MuscleWestern Mediterranean
W. S. Broecker, R. Gerard, “Natural Radiocarbon in the Mediterranean Sea,” Limnology and Oceanography, Vol. 14, No. 6, 1969, pp. 883-888. doi:10.4319/lo.1969.14.6.0883
K. Kannan, S. Corsolini, J. Falandysz, G. Oehme, S. Fo- cardi and J. P. Giesy, “Perfluoroctanesulfonate and Re- lated Fluorinated Hydrocarbons in Marine Mammals, Fishes and Birds from Coasts of the Baltic and Mediter- ranean Seas,” Environmental Sciences and Technology, Vol. 36, No 15, 2002, pp. 3210-3216.
K. Kannan, S. Corsolini, T. Imagawa, S. Focardi and J. P. Giesy, “Polychlorinated-naphthalenes, -biphenyls, -dibenzo- p-dioxins and -dibenzofurans in Bluefin Tuna, Swordfish, Cormorants and Barn Swallows from Italy,” Ambio, Vol. 31, No. 3, 2002, pp. 207-211.
P. Stefanelli, A. Ausili, A. Di Muccio, M. C. Fossi, S. Di Muccio, S. Rossi and A. Colasanti, “Organochlorine Com- pounds in Tissues of Swordfish (Xiphias gladius) from Mediterranean Sea and Azores islands,” Marine Pollution Bulletin, Vol. 49, No. 11-12, 2004, pp. 938-950. doi:10.1016%2FS0956-7135%2803%2900004-5
S. Damiano, P. Papetti and P. Menasatti, “Accumulation of Heavy Metals to Assess the Health Status of Swordfish in a Comparative Analysis of Mediterranean and Atlantic areas,” Marine Pollution Bulletin, Vol. 62, No. 8, 2011, pp. 1920-1925. doi:10.1016/j.marpolbul.2011.04.028
C. Leonzio, E. Bacci, S. Focardi and A. Renzoni, “Heavy Metals in Organisms from the Northern Tyrrhenian Sea,” Science of the Total Environment, Vol. 20, No. 3, 1981, pp. 131-146. doi:10.1016/0048-9697(81)90059-0
S. Corsolini, C. Guerranti, G. Perra and S. Focardi, “Polybrominated Diphenyl Ethers, Perfluorinated Com- pounds and Chlorinated Pesticides in Swordfish (Xiphias gladius) from the Mediterranean Sea,” Environmental Sciences and Technology, Vol. 42, No. 12, 2008, pp. 4344-4349. doi:10.1021/es703057f
K. Kannan, S. Tanabe, A. Borrell, A. Aguilar, S. Focardi and R. Tatsukawa, “Isomer-Specific Analysis and Toxic Evaluation of Polychlorinated Biphenyls in Striped Dol- phins Affected by an Epizootic in the Western Mediter- ranean Sea,” Archives of Environmental Contamination and Toxicology, Vol. 25, No. 2, 1993, pp. 227-233. doi:10.1007/BF00212134
A. Borrell, A. Aguilar, S. Corsolini and S. Focardi, “Evaluation of the Toxicity and Sex-Related Variation of PCB Levels in Mediterranean Striped Dolphins Affected by an Epizootic,” Chemosphere, Vol. 32, No. 12, 1996, pp. 2359-2369. doi:10.1016/0045-6535(96)00143-9
M. C. Fossi, S. Casini, L. Marsili, S. Ancora, G. Mori, G. Neri, T. Romeo and A. Ausili, “Evaluation of Ecotoxi- cological Effects of Endocrine Disrupters during a Four Year Survey of the Mediterranean Population of Sword- fish (Xiphias gladius),” Marine Environmental Research, Vol. 58, No. 2-5, 2004, pp. 425-429. doi:10.1016/j.marenvres.2004.03.026
J. P. Boon, W. E. Lewis, M. R. Tjoen-A-Choy, C. R. Allchin, R. J. Law, J. de Boer, C. Ten Hallers-Tjabbes and B. N. Zegers, “Levels of Polybrominated Diphenyl Ether (PBDE) Flame Retardants in Animals Representing Different Trophic Levels of the North Sea Food Web,” Environmental Sciences and Technology, Vol. 36, No 19, 2002, pp. 4025-4032. doi:10.1021/es0158298
S. Voorspoels, A. Covaci, P. Schepens, “Polybrominated diphenyl ethers in marine species from the Belgian North Sea and the Western Scheidt Estuary: Levels, Profiles, and Distribution,” Environmental Sciences and Technol- ogy, Vol. 37, No. 19, 2003, pp. 4348-4357. doi:10.1021/es034503r
A. Bocio, J. M. Llobet, J. L. Domingo, J. Corbella, A. Teixido and C. Casas, “Polybrominated Diphenyl Ethers (PBDEs) in Foodstuffs: Human Exposure through the Diet,” Journal of Agricultural and Food Chemistry, Vol. 51, No. 10, 2003, pp. 3191-3195. doi:10.1021/jf0340916
C. De Wit, “An Overview of Brominated Flame Retar- dants in the Environment,” Chemosphere Vol. 46, No. 5, 2002, pp. 583-624. doi:10.1016/S0045-6535(01)00225-9
M. Lebeuf, B. Gouteux, L. Measure and S. Trottier, “Levels and Temporal Trends (1988-1999) of Polybro- minated Diphenyl Ethers in Beluga Whales (Delphinap- terus leucas) from the St. Lawrence Estuary, Canada,” Environmental Sciences and Technology, Vol. 38, No. 11, 2004, pp. 2971-2977. doi:10.1021/es035187j
K. S. Sajwan, K. Senthilkumar, S. Nune, A. Fowler, J. Richardson and B. G. Loganathan, “Persistent Organo- chlorine Pesticides, Polychlorinated Biphenyls, Polybrominated Diphenyl Ethers in Fish from Coastal Waters off Savannah, GA, USA,” Toxicological and Environmental Chemistry, Vol. 90, No. 1, 2008, pp. 81-96. doi:10.1080/02772240701270047
N. Borghesi, S. Corsolini, P. Leonards, S. Brandsma, J. De Boer and S. Focardi, “Polybrominated Diphenyl Ether Contamination Levels in Fish from the Antarctic and the Mediterranean Sea,” Chemosphere, Vol. 77, No. 5, 2009, pp. 693-698. doi:10.1016/j.chemosphere.2009.07.035
R. Hale, M. Alaee, J. B. Manchester-Neesvig, H. M. Stapleton and M. G. Ikonomou, “Polybrominated Diphenyl Ethers (PBDE) Flame Retardants in the North America Environment,” Environment International, Vol. 29, No. 6, 2003, pp. 841-853. doi:10.1016/S0160-4120(03)00113-2
M. G. Ikonomou, S. Rayne, R. F. Addison, “Exponential increases of the brominated flame retardants, polybrominated diphenyl ethers, in the canadian arctic from 1981 to 2000,” Environmental Sciences and Technology, Vol. 36, No. 9, 2002, pp. 1886-1892. doi:10.1021/es011401x
A. Schiavone, K. Kannan, Y. Horii, S. Focardi and S. Corsolini, “Polybrominated Diphenyl Ethers, Polychlorinated Naphthalenes and Polycyclic Musks in Human Fat from Italy: Comparison to Polychlorinated Biphenyls and Organochlorine Pesticides,” Environmental Pollution, Vol. 158, No. 2, 2010, pp. 599-606. doi:10.1016/j.envpol.2009.08.011
S. Corsolini, A. Ademollo, T. Romeo, S. Greco and S. Focardi, “Persistent Organic Pollutants in Edible Fish: A Human and Environmental Health Problem,” Microche- mical Journal, Vol. 79, No. 1-2, 2005, pp. 115-123. doi:10.1016/j.microc.2004.10.006
I. Corsi, M. Mariottini, A. Badesso, T. Caruso, N. Bor- ghesi, S. Bonacci, A. Iacocca and S. Focardi, “Contami- nation and Sub-Lethal Toxicological Effects of Persistent Organic Pollutants in the european Eel (Anguilla anguilla) in the Orbetello lagoon (Tuscany, Italy),” Hydrobiologia, Vol. 550, No. 1, 2005, pp. 237-249. doi:10.1007/s10750-005-4392-y
B. C. Chase, “Differences in Diet of Atlantic Bluefin Tuna (Thunnus thynnus) at Five Seasonal Feeding Grounds on the New England Continental Shelf,” Fishery Bulletin, Vol. 100, No. 2, 2002, pp. 168-180.
F. Moreira, “Food of the Swordfish, Xiphias gladius Lin- naeus, 1758, off the Portuguese Coast,” Journal of Fish Biology, Vol. 36, No. 4, 1990, pp. 623-624. doi:10.1111/j.1095-8649.1990.tb03565.x
F. Moravec and F. Garibaldi, “Huffmanela paronai sp. n. (Nematoda: Trichosomoididae), a New Parasite from the Skin of Swordfish Xiphias gladius in the Ligurian Sea (Western Mediterranean),” Folia Parasitologica, Vol. 47, No. 4, 2000, pp. 309-313.
W. Luksemburg, R. Wenning, M. Maier, A. Patterson and S. Braithwaite, “Polybrominated Diphenyl Ethers (PBDE) and Polychlorinated Dibenzo-p-Dioxins (PCDD/F) and Biphenyls (PCB) in Fish, Beef, and Fowl Purchased in Food Markets in Northern California USA,” Organohalogen Compounds, Vol. 66, 2004, pp. 3987-3982.
M. G. Ikonomou, S. Rayne and M. Fischer, “Occurrence and Congener Profiles of Polybrominated Diphenyl Ethers (PBDEs) in Environmental Samples from Coastal British Columbia, Canada,” Chemosphere, Vol. 46, No. 5, 2002, pp. 649-663. doi:10.1016/S0045-6535(01)00229-6
J. H. Christensen, M. Glasius, M. Pe’cseli, J. Platz, G. Pritzl, “Polybrominated Diphenyl Ethers (PBDEs) in Marine Fish and Blue Mussels from Southern Greenland,” Chemosphere, Vol. 46, No. 5, 2002, pp. 631-638. doi:10.1016/S0045-6535(02)00009-7
K. Kannan, K. Ramu, N. Kajiwara, R. K. Sinha and S. Tanabe, “Organochlorine Pesticides, Polychlorinated Biphenyls, and Polybrominated Diphenyl Ethers in Irra- waddy Dolphins from India,” Archives of Environmental Contamination and Toxicology, Vol. 49, No. 3, 2005, pp. 415-420. doi:10.1007/s00244-005-7078-6
F. Wania and C. B. Dugani, “Assessing the Long-Range Transport Potential of Polybrominated Diphenyl Ethers: A Comparison of Four Multimedia Models,” Environmental Toxicology and Chemistry, Vol. 22, No. 6, 2003, pp. 1252-1261. doi:10.1002/etc.5620220610