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Title: Monitoring of a wide range of organic micropollutants on the Portuguese coast using plastic resin pellets
Author: Mizukawa, Kaoruko
Takada, Hideshige
Ito, Maki
Geok, Yeo Bee
Hosoda, Junki
Yamashita, Rei
Saha, Mahua
Suzuki, Satoru
Miguez, Carlos
Frias, João
Antunes, Joana Cepeda
Sobral, Paula
Santos, Isabelina
Micaelo, Cristina
Ferreira, Ana Maria
Keywords: DDTs
Marine debris
Passive sampler
Issue Date: 2013
Publisher: Elsevier
Abstract: 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 ∼100 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.
Peer review: yes
DOI: 10.1016/j.marpolbul.2013.02.008
ISSN: 0025-326X
Appears in Collections:CESAM - Artigos
DBio - Artigos

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