Journal
CHEMOSPHERE
Volume 56, Issue 9, Pages 867-878Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.chemosphere.2004.03.013
Keywords
ambient PAH profiles; diagnostic ratios; principal component analysis; source PAH profiles; vehicular emissions
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Polycyclic aromatic hydrocarbons (PAHs) adsorbed to ambient PM10 were determined at three sites in Thessaloniki, northern Greece, during the period June 1997-July 1998. Ambient PAH profiles exhibited significant seasonal and spatial variations. Source PAH profiles were obtained for a number of urban, industrial and geological sources including cement, fertilizer and asphalt production, quarry operations, metal electroplating, metal welding and tempering, steel manufacture, lead and bronze smelters, metal scrap incineration, oil burning, non-catalyst equipped passenger cars, diesel fueled taxies and buses, paved road dust and soil dust. Principal component analysis (PCA) and diagnostic ratios were employed to compare ambient and source PAH profiles in an attempt to recognize compositional patterns. Similarities between the ambient PAH profiles and the profiles of certain sources, such as vehicular emissions, oil burning and metal industries, were identified. (C) 2004 Elsevier Ltd. All rights reserved.
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