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Quantitation of persistent organic pollutants adsorbed on plastic debris from the Northern Pacific Gyre's "eastern garbage patch".
Rios, Lorena M; Jones, Patrick R; Moore, Charles; Narayan, Urja V.
Afiliação
  • Rios LM; University of the Pacific, Chemistry Department, Stockton, CA 95211, USA. lrios@pacific.edu
J Environ Monit ; 12(12): 2226-36, 2010 Dec.
Article em En | MEDLINE | ID: mdl-21042605
ABSTRACT
Floating marine plastic debris was found to function as solid-phase extraction media, adsorbing and concentrating pollutants out of the water column. Plastic debris was collected in the North Pacific Gyre, extracted, and analyzed for 36 individual PCB congeners, 17 organochlorine pesticides, and 16 EPA priority PAHs. Over 50% contained PCBs, 40% contained pesticides, and nearly 80% contained PAHs. The PAHs included 2, 3 and 4 ring congeners. The PCBs were primarily CB-11, 28, 44, 52, 66, and 101. The pesticides detected were primarily p,p-DDTs and its metabolite, o,p-DDD, as well as BHC (a,b,g and d). The concentrations of pollutants found ranged from a few ppb to thousands of ppb. The types of PCBs and PAHs found were similar to those found in marine sediments. However, these plastic particles were mostly polyethylene which is resistant to degradation and although functioning similarly to sediments in accumulating pollutants, these had remained on or near the ocean surface. Particles collected included intact plastic items as well as many pieces less than 5 mm in size.
Assuntos

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Plásticos / Hidrocarbonetos Policíclicos Aromáticos / Poluentes Químicos da Água / Bifenilos Policlorados Idioma: En Revista: J Environ Monit Assunto da revista: SAUDE AMBIENTAL Ano de publicação: 2010 Tipo de documento: Article País de afiliação: Estados Unidos

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Plásticos / Hidrocarbonetos Policíclicos Aromáticos / Poluentes Químicos da Água / Bifenilos Policlorados Idioma: En Revista: J Environ Monit Assunto da revista: SAUDE AMBIENTAL Ano de publicação: 2010 Tipo de documento: Article País de afiliação: Estados Unidos