Gaseous polycyclic aromatic hydrocarbons over the South China Sea : Implications for atmospheric transport under monsoon influences
Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review
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Detail(s)
Original language | English |
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Article number | 114982 |
Journal / Publication | Marine Pollution Bulletin |
Volume | 191 |
Online published | 28 Apr 2023 |
Publication status | Published - Jun 2023 |
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Abstract
The seasonal monsoon variations have significant impact on the atmospheric transport of semi-volatile organic pollutants over the South China Sea (SCS). We analyzed polycyclic aromatic hydrocarbons (PAHs) over the basin and island areas (Yongxing Island and Yongshu Island) in 2017. Gaseous PAHs (0.17–1.4 ng m−3) showed spatio-temporal distinctions in their composition and sources among the basin and island areas. Mixed combustion sources of PAHs were identified over the SCS, including a petroleum source near the island areas. The transport routes of PAHs were inferred by the air mass back trajectories and potential source contribution factor analysis, identifying strong biomass burning signals from the Indochina Peninsula and other Southeast Asian countries. Emissions from approximately 90 % of the combustion sources were transported to basin areas by monsoons, whereas the island areas were dominated by local emissions. This study emphasizes the main potential terrestrial source of PAHs over the SCS under monsoon influences. © 2023 Elsevier Ltd
Research Area(s)
- Atmospheric transport, Biomass burning, Polycyclic aromatic hydrocarbons (PAHs), Seasonal trends, Transboundary transport
Citation Format(s)
Gaseous polycyclic aromatic hydrocarbons over the South China Sea: Implications for atmospheric transport under monsoon influences. / Zheng, Haowen; Liu, Mengyang; Lohmann, Rainer et al.
In: Marine Pollution Bulletin, Vol. 191, 114982, 06.2023.
In: Marine Pollution Bulletin, Vol. 191, 114982, 06.2023.
Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review