Persistent organic pollutants in soils and sediments from James Ross Island, Antarctica.
Environ Pollut
; 152(2): 416-23, 2008 Mar.
Article
em En
| MEDLINE
| ID: mdl-17655988
ABSTRACT
Soil and sediment samples from James Ross Island were analyzed for their PCB, OCP and PAH contents. Soil concentrations ranged between 0.51 and 1.82 ng g(-1) for seven indicator PCB congeners, between 0.49 and 1.34 ng g(-1) for HCH congeners, between 0.51 and 3.68 ng g(-1) for the sum of p,p'-DDT, DDE, and DDD, and between 34.9 and 171 ng g(-1) for the sum of 16 EPA PAHs. Sediment levels from 0.32 to 0.83 ng g(-1) were found for PCBs, from 0.14 to 0.76 ng g(-1) for HCHs, from 0.19 to 1.15 ng g(-1) for DDTs, and from 1.4 to 205 ng g(-1) for PAHs. A prevalence of low-mass PAHs, less chlorinated PCBs, and more volatile chemicals indicates that the long-range atmospheric transport from populated areas of Africa, South America, and Australia is the most probable contamination source for the solid matrices in James Ross Island.
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Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Praguicidas
/
Solo
/
Sedimentos Geológicos
/
Poluentes Ambientais
/
Hidrocarbonetos Clorados
Tipo de estudo:
Risk_factors_studies
Idioma:
En
Ano de publicação:
2008
Tipo de documento:
Article