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Occurrence and fate of polycyclic aromatic hydrocarbons in the coastal surface microlayer

AuthorsGuitart, Carlos ; García-Flor, Nuria; Bayona Termens, Josep María ; Albaigés Riera, Joan
KeywordsSea surface microlayer
Surface enrichment
Coastal environment
Mediterranean Sea
Issue DateFeb-2007
CitationMarine Pollution Bulletin 54(2): 186-194 (2007)
AbstractPolycyclic aromatic hydrocarbons (PAHs) were measured in the coastal sea surface microlayer (SML), the sub-surface waters (SSW) and the overlying atmosphere in order to investigate the influence of the SML on contaminant enrichment and air–sea exchange. Samples were collected at two contrasting locations of the NW Mediterranean, one urban influenced (off Barcelona, Spain) and another comparatively clean (off Banyuls-sur-Mer, France). Statistical data analysis confirmed the accumulation of PAHs in the SML with respect to the SSW (20.3 ± 9.1 vs. 13.1 ± 10.0 ng L 1 in the dissolved phase; 709 ± 207 vs. 158 ± 111 ng g 1 in the particulate phase). This accumulation was higher at the contaminated location (Barcelona station) compared with the more pristine one, with PAH enrichments 1.5 and 4.5 times higher for the dissolved and particulate phases, respectively, indicating that the enrichment of PAHs in the SML is dominated by particle transport processes.
Description9 pages, 3 tables, 3 figures.-- PMID: 17125801 [PubMed].-- Available online on Nov 27, 2006.
Publisher version (URL)http://dx.doi.org/10.1016/j.marpolbul.2006.10.008
Appears in Collections:(IDAEA) Artículos
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