| A novel approach for characterization of polycyclic aromatic hydrocarbon (PAH) pollution patterns in sediments from Guanabara Bay, Rio de Janeiro, Brazil. | |
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MedLine Citation:
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PMID: 20709434 Owner: NLM Status: In-Process |
Abstract/OtherAbstract:
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A novel multivariate method based on principal component analysis of pre-processed sections of chromatograms is used to characterize the complex PAH pollution patterns in sediments from Guanabara Bay, Brazil. Five distinct sources of 3- to 6-ring PAHs could be revealed. The harbour is the most contaminated site in the bay, its plume stretches in a South West to North East direction and the chemical profile indicates mainly pyrogenic sources mixed with a fraction of high-molecular-weight petrogenic PAHs. Rio São João de Meriti is the second largest source of PAHs, and introduces mainly a fraction of low-molecular-weight petrogenic PAHs from the western region of Rio de Janeiro. The sites close to the ruptured pipeline at the Duque de Caxias Refinery show a distinctive pollution pattern indicating a heavy petroleum fraction. The method also led to the identification of new potential indicator ratios also involving coeluting peaks (e.g., triphenylene and chrysene). |
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Authors:
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Jan H Christensen; Giorgio Tomasi; Arthur de Lemos Scofield; Maria de Fatima Guadalupe Meniconi |
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Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't Date: 2010-08-14 |
Journal Detail:
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Title: Environmental pollution (Barking, Essex : 1987) Volume: 158 ISSN: 1873-6424 ISO Abbreviation: Environ. Pollut. Publication Date: 2010 Oct |
Date Detail:
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Created Date: 2010-09-06 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 8804476 Medline TA: Environ Pollut Country: England |
Other Details:
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Languages: eng Pagination: 3290-7 Citation Subset: IM |
Copyright Information:
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Copyright (c) 2010 Elsevier Ltd. All rights reserved. |
Affiliation:
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Department of Basic Sciences and Environment, the Faculty of Life Sciences, University of Copenhagen, Thorvaldsensvej 40, 1871 Frederiksberg C, Denmark. jch@life.ku.dk |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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