title: Polychlorinated biphenyls, organochlorine pesticides and polycyclic aromatic hydrocarbons in a one-off global survey of bivalves.
abstract: During the Danish Galathea 3 expedition, bivalve samples were collected at the Faroe Islands, Greenland, Ghana, South Africa, Australia, Solomon Islands, New Zealand, Chile, US Virgin Islands, Boston, Newfoundland and Shetland Islands and analysed for organochlorines and PAHs. Concentration differences of up to three orders of magnitude were observed, with the highest concentrations at Boston harbour (SPCB 338 ng g(-1) dw, ΣSPAH 5966 ng g(-1) dw) and the Sydney estuary (ΣSPCB 282 ng g(-1) dw, SPAH 1453 ng g(-1) dw). Local impacts were also found for the Greenland capital Nuuk in terms of PCB and PAH levels, while other Greenland samples came closest to representing PAH background levels. Several locations had undetectable organochlorine levels, including Hobart and Chile, which had the lowest SPAH concentrations (<200 ng g(-1) dw). It was possible to group the stations according to their pyrogenic/petrogenic influence using Principal Component Analyses, and indications of petroleum sources were found at Nuuk.
authors.affiliation: Department of Environmental Chemistry and Microbiology, National Environmental Research Institute (NERI), Aarhus University (AU), Frederiksborgvej 399, 4000 Roskilde, Denmark. kvo@dmu.dk
authors.forename: Katrin
authors.initials: K
authors.lastname: Vorkamp
authors.forename: Jakob
authors.initials: J
authors.lastname: Strand
authors.forename: Jan H
authors.initials: JH
authors.lastname: Christensen
authors.forename: Tore C
authors.initials: TC
authors.lastname: Svendsen
authors.forename: Pia
authors.initials: P
authors.lastname: Lassen
authors.forename: Asger B
authors.initials: AB
authors.lastname: Hansen
authors.forename: Martin M
authors.initials: MM
authors.lastname: Larsen
authors.forename: Ole
authors.initials: O
authors.lastname: Andersen
mesh_terms: D000818:Animals; D059001:Aquatic Organisms / Q000737:chemistry; D049872:Bivalvia / Q000737:chemistry*; D006843:Hydrocarbons, Chlorinated / Q000032:analysis* / Q000737:chemistry; D009792:Oceans and Seas; D010575:Pesticides / Q000032:analysis* / Q000737:chemistry; D011078:Polychlorinated Biphenyls / Q000032:analysis* / Q000737:chemistry; D011084:Polycyclic Aromatic Hydrocarbons / Q000032:analysis* / Q000737:chemistry; D025341:Principal Component Analysis
chemical_list: D006843:Hydrocarbons, Chlorinated; D010575:Pesticides; D011084:Polycyclic Aromatic Hydrocarbons; D011078:Polychlorinated Biphenyls