Atmospheric transport and outflow of polycyclic aromatic hydrocarbons   from China

doi:10.1021/es800453n

CORC > 北京大学 > 环境科学与工程学院

	Atmospheric transport and outflow of polycyclic aromatic hydrocarbons from China
	Lang, Chang ; Tao, Shu ; Liu, Wenxin ; Zhang, Yanxu ; Simonich, Staci
刊名	environmental science technology
	2008
关键词	EAST-ASIA SOURCE IDENTIFICATION PAHS AIR ENVIRONMENT TOXAPHENE BIOMASS CANCER FUELS TIME
DOI	10.1021/es800453n
英文摘要	A potential receptor influence function (PRIF) model, based on air mass forward trajectory calculations, was applied to simulate the atmospheric transport and outflow of polycyclic aromatic hydrocarbons (PAHs) emitted from China. With a 10 day atmospheric transport time, most neighboring countries and regions, as well as remote regions, were influenced by PAH emissions from China. Of the total annual PAH emission of 114 Gg, 92.7% remained within the boundary of mainland China. The geographic distribution of PRIFs within China was similar to the geographic distribution of the source regions, with high values in the North China Plain, Sichuan Basin, Shanxi, and Guizhou province. The Tarim basin and Sichuan basin had unfavorable meteorological conditions for PAH outflow. Of the PAH outflow from China (8092 tons or 7.1 % of the total annual PAH emission), approximately 69.9% (5655 tons) reached no further than the offshore environment of mainland China and the South China Sea. Approximate 227, 71, 746, and 131 tons PAHs reached North Korea, South Korea, Russia-Mongolia region, and Japan, respectively, 2-4 days after the emission. Only 1.4 tons PAHs reached North America after more than 9 days. Interannual variation in the eastward PAH outflow was positively correlated to cold episodes of El Nino/Southern Oscillation. However, trans-Pacific atmospheric transport of PAHs from China was correlated to Pacific North America index (PNA) which is associated with the strength and position of westerly winds.; Engineering, Environmental; Environmental Sciences; SCI(E); PubMed; 33; ARTICLE; 14; 5196-5201; 42
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/197572]
专题	环境科学与工程学院
推荐引用方式 GB/T 7714	Lang, Chang,Tao, Shu,Liu, Wenxin,et al. Atmospheric transport and outflow of polycyclic aromatic hydrocarbons from China[J]. environmental science technology,2008.
APA	Lang, Chang,Tao, Shu,Liu, Wenxin,Zhang, Yanxu,&Simonich, Staci.(2008).Atmospheric transport and outflow of polycyclic aromatic hydrocarbons from China.environmental science technology.
MLA	Lang, Chang,et al."Atmospheric transport and outflow of polycyclic aromatic hydrocarbons from China".environmental science technology (2008).