title: Spatial and temporal analysis of the risks posed by polychlorinated biphenyl and metal contaminants in dab (Limanda limanda) collected from waters around England and Wales.
abstract: The metals cadmium, mercury and lead, and the ICES7 CB levels were analysed in the common dab Limanda limanda to investigate whether concentrations of these determinants are at levels above established OSPAR assessment criteria around England and Wales. The results indicate that CB118 is above the OSPAR derived EAC at 22 out of 29 sampled stations, with 15 showing significant reductions. Cadmium is increasing significantly at six stations with two sites in the North Sea breaching corresponding OSPAR EAC. Mean results for all other PCBs and metals stayed below the EAC thresholds, with Hg concentrations even falling below BAC levels at South Eddystone located in the western English Channel. This study shows that PCBs banned over 20years ago are still found at concentrations in fish liver tissues which may pose a health risk to both the individual fish and their predators.
authors: Centre for Environment Fisheries and Aquaculture Science, Cefas Lowestoft Laboratory, Lowestoft, Suffolk NR33 0LB, UK. Electronic address: manuel.nicolaus@cefas.co.uk.
authors: E E Manuel
authors: EEM
authors: Nicolaus
authors: Centre for Environment Fisheries and Aquaculture Science, Cefas Lowestoft Laboratory, Lowestoft, Suffolk NR33 0LB, UK.
authors: Serena R
authors: SR
authors: Wright
authors: Centre for Environment Fisheries and Aquaculture Science, Cefas Lowestoft Laboratory, Lowestoft, Suffolk NR33 0LB, UK.
authors: Thi P C
authors: TPC
authors: Bolam
authors: Centre for Environment Fisheries and Aquaculture Science, Cefas Lowestoft Laboratory, Lowestoft, Suffolk NR33 0LB, UK.
authors: Jonathan L
authors: JL
authors: Barber
authors: Centre for Environment Fisheries and Aquaculture Science, Cefas Weymouth Laboratory, Weymouth, Dorset DT4 8UB, UK.
authors: John P
authors: JP
authors: Bignell
authors: Centre for Environment Fisheries and Aquaculture Science, Cefas Weymouth Laboratory, Weymouth, Dorset DT4 8UB, UK.
authors: Brett P
authors: BP
authors: Lyons
mesh_terms: D000818:Animals; D002104:Cadmium / Q000032:analysis*; D004739:England; D004784:Environmental Monitoring / Q000379:methods; D005432:Flounder; D005843:Geography; D008628:Mercury / Q000032:analysis*; D009659:North Sea; D011078:Polychlorinated Biphenyls / Q000032:analysis*; D012306:Risk; D014852:Wales; D014867:Water / Q000032:analysis*; D014874:Water Pollutants, Chemical / Q000032:analysis*
chemical_list: D014874:Water Pollutants, Chemical; D002104:Cadmium; D014867:Water; D011078:Polychlorinated Biphenyls; D008628:Mercury
keywords: Contaminants; Environmental quality standards (BAC, EAC, EC); Limanda limanda; Risk characterisation ratio