PMID- 21451877 OWN - NLM STAT- MEDLINE DCOM- 20110808 LR - 20161125 IS - 1464-0333 (Electronic) IS - 1464-0325 (Linking) VI - 13 IP - 5 DP - 2011 May TI - An assessment of persistent organic pollutants in Scottish coastal and offshore marine environments. PG - 1288-307 LID - 10.1039/c1em10100e [doi] AB - Concentrations of persistent organic pollutants (POPs), including polycyclic aromatic hydrocarbons (PAHs), polychlorinated biphenyls (PCBs) and polybrominated diphenyl ethers (PBDEs) were determined in sediment and biota (fish liver) from around Scotland. The concentrations were investigated using assessment criteria developed by OSPAR and ICES. Organic contaminant concentrations, PAHs, PCBs and PBDEs in sediment, and PCBs and PBDEs in fish liver, were significantly higher in the Clyde compared to all other sea areas. This is mainly due to historic industrial inputs. Highest PCB and PAH concentrations were found in the strata furthest up the Clyde estuary, with concentrations of POPs in these strata being at levels such that there is an unacceptable risk of chronic effects occurring in marine species. Furthermore, for PAHs in Clyde sediment there was a significant negative gradient going from north to south towards the open sea. PAH and PCB concentrations in sediment and biota in all other Scottish sea areas (except for PCBs in sediment from East Scotland) were unlikely to give rise to pollution effects, being below relevant assessment criteria. Although no assessment criteria are available for PBDEs, the concentrations observed in Scottish sediments were low with all congeners below the limit of detection (LoD; 0.03 microg kg(-1) dry weight) in 140 out of a total of 307 samples analysed. Where PBDEs were detected, the dominant congeners were BDE47 and BDE99. PBDEs were detected in fish livers, although concentrations were less than 150 microg kg(-1) lipid weight in all sea areas except the Clyde where concentrations ranged between 8.9 and 2202 microg kg(-1) lipid weight. Few trends were detected in contaminant concentrations in biota or sediment at any Scottish site with more than five years data. Downward trends were detected in PAHs in sediment from the Clyde, Irish Sea and Minches and Malin Sea and PCBs in fish liver from the Moray Firth. Rules were developed for the aggregation of the contaminant data across a sea area. An overall assessment for each sea area was then assigned, looking at the frequency of sites or strata within each sea area that were above or below the relevant assessment criteria. Overall the status of the various sea areas, with respect to the assessed POPs, can be considered to be acceptable in that they were below concentrations likely to result in chronic effects for all sea areas except the Clyde. FAU - Webster, Lynda AU - Webster L AD - Marine Scotland, Marine Laboratory, Aberdeen AB11 9DB, UK. websterl@marlab.ac.uk FAU - Russell, Marie AU - Russell M FAU - Walsham, Pam AU - Walsham P FAU - Phillips, Lesley A AU - Phillips LA FAU - Hussy, Ines AU - Hussy I FAU - Packer, Gill AU - Packer G FAU - Dalgarno, Eric J AU - Dalgarno EJ FAU - Moffat, Colin F AU - Moffat CF LA - eng PT - Journal Article DEP - 20110331 PL - England TA - J Environ Monit JT - Journal of environmental monitoring : JEM JID - 100968688 RN - 0 (Halogenated Diphenyl Ethers) RN - 0 (Organic Chemicals) RN - 0 (Polycyclic Aromatic Hydrocarbons) RN - 0 (Water Pollutants, Chemical) RN - DFC2HB4I0K (Polychlorinated Biphenyls) SB - IM MH - Animals MH - Environmental Monitoring MH - Fishes/metabolism MH - Geologic Sediments/chemistry MH - Halogenated Diphenyl Ethers/analysis/metabolism MH - Liver/metabolism MH - Organic Chemicals/*analysis/metabolism MH - Polychlorinated Biphenyls/analysis/metabolism MH - Polycyclic Aromatic Hydrocarbons/analysis/metabolism MH - Scotland MH - Seawater/chemistry MH - Water Pollutants, Chemical/*analysis/metabolism MH - Water Pollution, Chemical/statistics & numerical data EDAT- 2011/04/01 06:00 MHDA- 2011/08/09 06:00 CRDT- 2011/04/01 06:00 PHST- 2011/04/01 06:00 [entrez] PHST- 2011/04/01 06:00 [pubmed] PHST- 2011/08/09 06:00 [medline] AID - 10.1039/c1em10100e [doi] PST - ppublish SO - J Environ Monit. 2011 May;13(5):1288-307. doi: 10.1039/c1em10100e. Epub 2011 Mar 31.