Sources of polycyclic aromatic hydrocarbons to sediments of the Bohai   and Yellow Seas in East Asia

doi:10.1029/2011JD015722

CORC > 北京大学 > 环境科学与工程学院

	Sources of polycyclic aromatic hydrocarbons to sediments of the Bohai and Yellow Seas in East Asia
	Lin, Tian ; Hu, Limin ; Guo, Zhigang ; Qin, Yanwen ; Yang, Zuosheng ; Zhang, Gan ; Zheng, Mei
刊名	journal of geophysical research atmospheres
	2011
关键词	SOUTH CHINA SEA SOURCE APPORTIONMENT ATMOSPHERIC TRANSPORT ORGANIC-COMPOUNDS RIVER ESTUARY LAKE CALUMET PAH SOURCE OUTFLOW EMISSION FLUXES
DOI	10.1029/2011JD015722
英文摘要	The coasts of Bohai Sea (BS) and Yellow Sea (YS) in China support almost one-quarter of its population and provide more than one-third of the national GDP. BS and YS are downwind of the Asian continental outflow in spring and winter as influenced by the East Asian monsoon. This makes the two seas important sinks of land-based pollutants associated with the Asian continental outflow. The sixteen U. S. EPA proposed priority polycyclic aromatic hydrocarbons (PAHs) in 130 surface sediment samples collected from BS and YS were measured. Combined with our previous PAH data of 90 PM2.5 samples from the upwind areas, the sources of the PAHs in BS and YS were apportioned using positive matrix factorization (PMF) modeling. Four sources were identified: petroleum residue, vehicular emissions, coal combustion and biomass burning. Petroleum residue was the dominant contributor of PAHs in the coast of the Bohai Bay probably due to Haihe River runoff, oil leakage from ships and offshore oil fields. The contribution of vehicular emissions in BS was higher than that in YS, and the reverse was true for coal combustion and biomass burning. This difference in the source patterns in the sediments of the two seas could be attributed to the different PAH emission features of the upwind area related to demographic and economic conditions, as well as the marine geography. The ratios of selected 4-6 ring PAHs in the sediments compared well with those of the PM2.5 of the upwind areas, implicating that the particle phase PAHs in the atmosphere play an important role in the source to sink process of the pyrogenic PAHs in the region.; Meteorology & Atmospheric Sciences; SCI(E); 6; ARTICLE; 116
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/236921]
专题	环境科学与工程学院
推荐引用方式 GB/T 7714	Lin, Tian,Hu, Limin,Guo, Zhigang,et al. Sources of polycyclic aromatic hydrocarbons to sediments of the Bohai and Yellow Seas in East Asia[J]. journal of geophysical research atmospheres,2011.
APA	Lin, Tian.,Hu, Limin.,Guo, Zhigang.,Qin, Yanwen.,Yang, Zuosheng.,...&Zheng, Mei.(2011).Sources of polycyclic aromatic hydrocarbons to sediments of the Bohai and Yellow Seas in East Asia.journal of geophysical research atmospheres.
MLA	Lin, Tian,et al."Sources of polycyclic aromatic hydrocarbons to sediments of the Bohai and Yellow Seas in East Asia".journal of geophysical research atmospheres (2011).