globalchange  > 气候减缓与适应
DOI: 10.1038/ngeo2714
论文题名:
High atmosphere-ocean exchange of semivolatile aromatic hydrocarbons
作者: González-Gaya B.; Fernández-Pinos M.-C.; Morales L.; Méjanelle L.; Abad E.; Piña B.; Duarte C.M.; Jiménez B.; Dachs J.
刊名: Nature Geoscience
ISSN: 17520894
出版年: 2016
卷: 9, 期:6
起始页码: 438
结束页码: 442
语种: 英语
Scopus关键词: air-sea interaction ; carbon dioxide ; carbon flux ; combustion ; concentration (composition) ; gas exchange ; global ocean ; human activity ; oil spill ; PAH ; volatile organic compound ; Atlantic Ocean ; Atlantic Ocean (Subtropical) ; Pacific Ocean ; Pacific Ocean (Subtropical)
英文摘要: Polycyclic aromatic hydrocarbons, and other semivolatile aromatic-like compounds, are an important and ubiquitous fraction of organic matter in the environment. The occurrence of semivolatile aromatic hydrocarbons is due to anthropogenic sources such as incomplete combustion of fossil fuels or oil spills, and other biogenic sources. However, their global transport, fate and relevance for the carbon cycle have been poorly assessed, especially in terms of fluxes. Here we report a global assessment of the occurrence and atmosphere-ocean fluxes of 64 polycyclic aromatic hydrocarbons analysed in paired atmospheric and seawater samples from the tropical and subtropical Atlantic, Pacific and Indian oceans. The global atmospheric input of polycyclic aromatic hydrocarbons to the global ocean is estimated at 0.09 Tg per month, four times greater than the input from the Deepwater Horizon spill. Moreover, the environmental concentrations of total semivolatile aromatic-like compounds were 10 2 -10 3 times higher than those of the targeted polycyclic aromatic hydrocarbons, with a relevant contribution of an aromatic unresolved complex mixture. These concentrations drive a large global deposition of carbon, estimated at 400 Tg C yr -1, around 15% of the oceanic CO2 uptake. © 2016 Macmillan Publishers Limited.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/105996
Appears in Collections:气候减缓与适应
科学计划与规划

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作者单位: Department of Environmental Chemistry, Institute of Environmental Assessment and Water Research (IDAEA-CSIC), Barcelona, Catalonia, Spain; Department of Instrumental Analysis and Environmental Chemistry, Institute of Organic Chemistry (IQOG-CSIC), Madrid, Spain; Laboratory of Ecogeochemistry of Benthic Environments, Université Pierre et Marie Curie, Centre National de Recherche Scientifique, Banyuls sur Mer, France; Department of Global Change Research, Mediterranean Institute for Advanced Studies (IMEDEA-CSIC), Esporles, Mallorca, Spain; King Abdullah University of Science and Technology (KAUST), Red Sea Research Center (RSRC), Thuwal, Saudi Arabia

Recommended Citation:
González-Gaya B.,Fernández-Pinos M.-C.,Morales L.,et al. High atmosphere-ocean exchange of semivolatile aromatic hydrocarbons[J]. Nature Geoscience,2016-01-01,9(6)
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