Journal
MARINE POLLUTION BULLETIN
Volume 70, Issue 1-2, Pages 296-302Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.marpolbul.2013.02.008
Keywords
PCBs; DDTs; PAHs; Hopanes; Marine debris; Passive sampler
Funding
- Mitsui and Co. Ltd. [R11-G4-1053]
- Ministry of Education and Culture of Japan [22254001]
- Fundacao para a Ciencia e Tecnologia, Portugal [PTDC/MAR/102677/2008, SFRH/BD/74772/2010]
- Fundação para a Ciência e a Tecnologia [PTDC/MAR/102677/2008, SFRH/BD/74772/2010] Funding Source: FCT
- Grants-in-Aid for Scientific Research [23310046] Funding Source: KAKEN
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We analyzed polychlorinated biphenyls (PCBs), dichlorodiphenyl dichloroethane and its metabolites, hexachlorocyclohexanes (HCHs), polycyclic aromatic hydrocarbons (PAHs), and hopanes, in plastic resin pellets collected from nine locations along the Portuguese coast. Concentrations of a sum of 13 PCBs were one order of magnitude higher in two major cities (Porto: 307 ng/g-pellet; Lisboa: 273 ng/g-pellet) than in the seven rural sites. Lower chlorinated congeners were more abundant in the rural sites than in the cities, suggesting atmospheric dispersion. At most of the locations, PAH concentrations (sum of 33 PAH species) were similar to 100 to similar to 300 ng/g-pellet; however, three orders of magnitude higher concentrations of PAHs, with a petrogenic signature, were detected at a small city (Sines). Hopanes were detected in the pellets at all locations. This study demonstrated that multiple sample locations, including locations in both urban and remote areas, are necessary for country-scale pellet watch. (C) 2013 Elsevier Ltd. All rights reserved.
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