Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/6336
Title: The spatial distribution and potential sources of polycyclic aromatic hydrocarbons (PAHs) over the Asian marginal seas and the Indian and Atlantic Oceans
Authors: Xu, Y
Zhang, YL
Li, J
Gioia, R
Zhang, G
Li, X 
Spiro, B
Bhatia, RS
Jones, KC
Keywords: PAHs
Atmosphere
Oceans
Issue Date: Apr-2012
Publisher: John Wiley and Sons
Source: Journal of geophysical research: atmospheres, Apr. 2012, v. 117, no. D7, D07302 How to cite?
Journal: Journal of geophysical research: atmospheres 
Abstract: Gaseous and particle-bound polycyclic aromatic hydrocarbons (PAHs) were analyzed in air samples taken on a voyage of the Scholar Ship from January 16th to March 14th, 2008. Samples were taken from the Asian marginal seas and the Indian and Atlantic Oceans, providing an opportunity to assess spatial trends and potential sources of atmospheric PAHs over those oceans. The results show that continental sources were still responsible for some high concentrations of PAHs measured over the oceans. The Σ₁₅PAHs in the gaseous phase were elevated on the approach to China and India, while the highest Σ₁₅PAHs in the particulate phase were found at Chennai Harbor and close to Guinea. The high proportion of fluorene in the gas phase over the East and South China Sea could be a marker of coal and coke related combustion emission from Mainland China. The elevated high-molecular-weight PAHs in particles close to Guinea might be related to biomass burning in Africa. These results are consistent with previous PAH emission inventories and highlight the potential impact of continental PAH sources in China, India and Africa on the adjacent marine atmosphere.
URI: http://hdl.handle.net/10397/6336
ISSN: 2169-897X (print)
2169-8996 (online)
DOI: 10.1029/2011JD016585
Rights: Copyright 2012 by the American Geophysical Union
Appears in Collections:Journal/Magazine Article

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