title: Application of congener based multi-matrix profiling techniques to identify potential PCDD/F sources in environmental samples from the Burrishoole Catchment in the West of Ireland.
abstract: Homologue and congener profiles of PCDD/Fs in eels, passive sampler and sediment extracts from the Burrishoole, a rural upland catchment on the western Irish seaboard were compared with potential PCDD sources. ΣPCDD/F levels in eels ranged from 2.9 to 25.9 pg g(-1) wet weight, which are elevated compared to other Irish locations. The OCDD congener dominated the pattern of ΣPCDD/Fs in all matrices from Burrishoole. Passive samplers were successfully deployed to identify for the first time the presence in the water column of PCDD/Fs and dimethoxylated octachlorodiphenyl ether (diMeOoctaCDE), impurities found in pentachlorophenol (PCP) production. Principal component analysis (PCA) identified similarities between PCDD/F profiles in technical PCP mixtures and environmental samples from the Burrishoole region. Results strongly suggest residual PCDD contamination associated with historic local use of a dioxin contaminated product in the catchment area, with pentachlorophenol a strong candidate.
authors.affiliation: Marine Institute, Rinville, Oranmore, Galway and Newport, Mayo, Ireland; School of Chemical and Pharmaceutical Sciences, Dublin Institute of Technology, Kevin St., Dublin 8, Ireland. Electronic address: Philip.white@marine.ie.
authors.forename: P
authors.initials: P
authors.lastname: White
authors.forename: B
authors.initials: B
authors.lastname: McHugh
authors.forename: R
authors.initials: R
authors.lastname: Poole
authors.forename: E
authors.initials: E
authors.lastname: McGovern
authors.forename: J
authors.initials: J
authors.lastname: White
authors.forename: P
authors.initials: P
authors.lastname: Behan
authors.forename: B
authors.initials: B
authors.lastname: Foley
authors.forename: A
authors.initials: A
authors.lastname: Covaci
mesh_terms: D000818:Animals; D001572:Benzofurans / Q000032:analysis* / Q000378:metabolism; D004524:Eels / Q000378:metabolism; D004784:Environmental Monitoring / Q000379:methods*; D007494:Ireland; D010416:Pentachlorophenol; D000072317:Polychlorinated Dibenzodioxins / Q000031:analogs & derivatives* / Q000032:analysis / Q000378:metabolism; D011108:Polymers / Q000032:analysis* / Q000378:metabolism; D014874:Water Pollutants, Chemical / Q000032:analysis* / Q000378:metabolism
chemical_list: D001572:Benzofurans; D000072317:Polychlorinated Dibenzodioxins; D011108:Polymers; D014874:Water Pollutants, Chemical; C016068:polychlorodibenzofuran; D010416:Pentachlorophenol
keywords: Anguilla anguilla; PCDD/F; Passive samplers; Pentachlorophenol; Principal components analysis