Atmospheric polycyclic aromatic hydrocarbons in north China: A   winter-time study

doi:10.1021/es0716249

CORC > 北京大学 > 城市与环境学院

	Atmospheric polycyclic aromatic hydrocarbons in north China: A winter-time study
	Liu, Shuzhen ; Tao, Shu ; Liu, Wenxin ; Liu, Yanan ; Dou, Han ; Zhao, Jingyu ; Wang, Luguang ; Wang, Jingfei ; Tian, Zaifeng ; Gao, Yuan
刊名	environmental science technology
	2007
关键词	SIZE DISTRIBUTIONS SEASONAL-VARIATION ORGANIC-COMPOUNDS SOURCE APPORTIONMENT PARTICULATE MATTER AIR-POLLUTION LAKE-MICHIGAN RURAL SITE URBAN AIR PARTICLE
DOI	10.1021/es0716249
英文摘要	The contamination and outflow of atmospheric polycyclic aromatic hydrocarbons (PAHs) in the Chinese Northern Plain, a region with a total area of 300 000 km(2) and a high PAH emission density, were investigated. Polyurethane foam (PUF) and PM10 samples were collected at 46 sites located in urban, rural (towns or villages), and control (remote mountain) areas in the winter from November 2005 to February 2006. The observed concentrations of atmospheric PAHs were generally higher than those reported for developed countries and southern Chinese cities. It was found that there was no significant difference in air PAH concentrations between the urban and the rural areas (514 +/- 563 ng/m(3) and 610 +/- 645 ng/ m(3), respectively), while the PAH concentrations at the control sites (57.1 +/- 12.6 ng/m(3)) were 1 order of magnitude lower than those at the other sites. The primary reason for the similarity in PAH concentrations between urban and rural areas was the fact that the predominant sources of biomass and domestic coal combustion were widely spread over the study area. The partition constants (K-PM10) of PAHs were significantly correlated to the corresponding values of subcooled liquid-vapor pressure (p(L)(0)). However, the regression slopes of log K-PM10 versus log p(L)(0) were much steeper than - 1, indicating adsorption dominated over absorption. Three distinct patterns of outflow from the study area were identified by forward trajectory and cluster analysis.; Engineering, Environmental; Environmental Sciences; SCI(E); EI; PubMed; 0; ARTICLE; 24; 8256-8261; 41
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/160762]
专题	城市与环境学院
推荐引用方式 GB/T 7714	Liu, Shuzhen,Tao, Shu,Liu, Wenxin,et al. Atmospheric polycyclic aromatic hydrocarbons in north China: A winter-time study[J]. environmental science technology,2007.
APA	Liu, Shuzhen.,Tao, Shu.,Liu, Wenxin.,Liu, Yanan.,Dou, Han.,...&Gao, Yuan.(2007).Atmospheric polycyclic aromatic hydrocarbons in north China: A winter-time study.environmental science technology.
MLA	Liu, Shuzhen,et al."Atmospheric polycyclic aromatic hydrocarbons in north China: A winter-time study".environmental science technology (2007).