The gas/particle partitioning of nitro- and oxy-polycyclic aromatic   hydrocarbons in the atmosphere of northern China

doi:10.1016/j.atmosres.2015.12.008

CORC > 北京大学 > 城市与环境学院

	The gas/particle partitioning of nitro- and oxy-polycyclic aromatic hydrocarbons in the atmosphere of northern China
	Li, Wei ; Shen, Guofeng ; Yuan, Chenyi ; Wang, Chen ; Shen, Huizhong ; Jiang, Huai ; Zhang, Yanyan ; Chen, Yuanchen ; Su, Shu ; Lin, Nan ; Tao, Shu
刊名	ATMOSPHERIC RESEARCH
	2016
关键词	Gas/particle partitioning Nitro-PAHs Oxy-PAHs Northern China PERSISTENT ORGANIC POLLUTANTS RELATIVE RATE CONSTANTS HENRYS LAW CONSTANTS AMBIENT AIR ORGANOCHLORINE PESTICIDES POLYCHLORINATED-BIPHENYLS HETEROGENEOUS REACTIONS CARBONACEOUS PARTICLES URBAN AREAS PART 1
DOI	10.1016/j.atmosres.2015.12.008
英文摘要	The gas/particle partitioning of nitro-polycyclic aromatic hydrocarbons (nPAHs) and oxy-PAHs (oPAHs) is pivotal to estimate their environmental fate. Simultaneously measured atmospheric concentrations of nPAHs and oPAHs in both gaseous and particulate phases at 18 sites in northern China make it possible to investigate their partitioning process in a large region. The gas/particle partitioning coefficients (K-p) in this study were higher than those measured in the emission exhausts. The K-p for most individual nPAHs was higher than those for their corresponding parent PAHs. Generally higher K-p values were found at rural field sites compared to values in the rural villages and cities. Temperature, subcooled liquid-vapor pressure (p(l)(0)) and octanol-air partition coefficient (K-oa) were all significantly correlated with K-p. The slope values between log K-p and log P-l(0), ranging from -0.54 to -0.34, indicate that the equilibrium of gas/particle partitioning might not be reached, which could be also revealed from a positive correlation between log K-p and particulate matter (PM) concentrations. Underestimation commonly exists in all three partitioning models, but the predicted values of K-p from the dual model are closer to the measured K-p for derivative PAHs in northern China. (C) 2015 Elsevier B.V. All rights reserved.; National Natural Science Foundation of China [41390240, 41130754]; SCI(E); EI; ARTICLE; taos@pku.edu.cn; 66-73; 172
语种	中文
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/437260]
专题	城市与环境学院
推荐引用方式 GB/T 7714	Li, Wei,Shen, Guofeng,Yuan, Chenyi,et al. The gas/particle partitioning of nitro- and oxy-polycyclic aromatic hydrocarbons in the atmosphere of northern China[J]. ATMOSPHERIC RESEARCH,2016.
APA	Li, Wei.,Shen, Guofeng.,Yuan, Chenyi.,Wang, Chen.,Shen, Huizhong.,...&Tao, Shu.(2016).The gas/particle partitioning of nitro- and oxy-polycyclic aromatic hydrocarbons in the atmosphere of northern China.ATMOSPHERIC RESEARCH.
MLA	Li, Wei,et al."The gas/particle partitioning of nitro- and oxy-polycyclic aromatic hydrocarbons in the atmosphere of northern China".ATMOSPHERIC RESEARCH (2016).