The exchange of SVOCs across the air-sea interface in Singapore's coastal environment

He, Jun and Balasubramanian, Rajasekhar (2010) The exchange of SVOCs across the air-sea interface in Singapore's coastal environment. Atmospheric Chemistry and Physics, 10 (4). pp. 1837-1852. ISSN 1680-7324

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Coastal areas are vulnerable to the accumulation of semivolatile organic compounds, such as PAHs, OCPs and PCBs from atmospheric inputs. Dry particulate and wet depositions, and air-water diffusive exchange in the Singapore’s south coastal area, where most of chemical and oil refinery industries are situated in, were estimated. Based on a yearly dataset, the mean annual dry particulate deposition fluxes of Σ16-PAHs, Σ7OCPs Σ21 PCBs were 1328.8±961.1 μg m−2 y−1, 7 21 bon and absorption into natural organic matter for PAHs in marine water column were investigated. Enrichment factors in the sea-surface microlayer (SML) of the particulate phase were 1.2–7.1 and 3.0–4.9 for PAHs and OCPs, and those of dissolved phase were 1.1–4.9 and 1.6–4.2 for PAHs and OCPs, respectively. These enrichment factors are relatively higher than those reported for nearby coastal areas, which are most likely due to more organic surfactants floating in the south coastal surface of Singapore.

Item Type: Article
Schools/Departments: University of Nottingham Ningbo China > Faculty of Science and Engineering > Department of Chemical and Environmental Engineering
Identification Number: 10.5194/acp-10-1837-2010
Depositing User: LI, Zhilin
Date Deposited: 22 Nov 2017 08:52
Last Modified: 24 Nov 2017 10:36

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