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Source apportionment of polycyclic aromatic hydrocarbons in surface sediments of Izmit Bay (Turkey)

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Thirty-five surface sediment samples were collected from the northeastern coast of the Izmit Bay to apportion the sources of polycyclic aromatic hydrocarbons (PAH) entering the Bay. Samples were collected in February and June, 2002 and they were analyzed for 16 PAH compounds using HPLC-UV. Total PAHs ranged from 1.1 to 68.4?µg?g -1 -dry wt. Both the factor analysis and the factor analysis-absolute factor score multiple linear regression analysis were applied to the results of 11 PAH compounds which were observed in more than 80% of the samples. From the factor analysis, two factors explaining 91.3% of the total variance were identified. The first factor was petrogenic and explained 76% of the variance. Except for the Anthracene, 57 to 85% of the lower molecular mass PAH compounds (from Fluorene to Chrysene) were contributed by this factor.
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Keywords: Factor analysis; Factor analysis-absolute factor score multiple linear regression; Multivariate methods; Polycyclic aromatic hydrocarbons; Source apportionment

Document Type: Research Article

Affiliations: 1: TUBITAK-MRC, Earth and Marine Sciences Research Institute, P.O. Box 21, 41470 Gebze, Kocaeli, Turkey 2: Environmental Engineering Department, University of Kocaeli, P.O. Box 318, 41300 İzmit, Kocaeli, Turkey

Publication date: June 15, 2005

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