Top-down estimates of benzene and toluene emissions in the Pearl River   Delta and Hong Kong, China

doi:10.5194/acp-16-3369-2016

CORC > 北京大学 > 环境科学与工程学院

	Top-down estimates of benzene and toluene emissions in the Pearl River Delta and Hong Kong, China
	Fang, Xuekun ; Shao, Min ; Stohl, Andreas ; Zhang, Qiang ; Zheng, Junyu ; Guo, Hai ; Wang, Chen ; Wang, Ming ; Ou, Jiamin ; Thompson, Rona L. ; Prinn, Ronald G.
刊名	ATMOSPHERIC CHEMISTRY AND PHYSICS
	2016
关键词	VOLATILE ORGANIC-COMPOUNDS PARTICLE DISPERSION MODEL NONMETHANE HYDROCARBONS NMHCS PRD REGION EAST-ASIA SOURCE APPORTIONMENT GREENHOUSE GASES AIR-POLLUTANTS COMPOUNDS VOCS MIXING RATIOS
DOI	10.5194/acp-16-3369-2016
英文摘要	Benzene (C6H6) and toluene (C7H8) are toxic to humans and the environment. They are also important precursors of ground-level ozone and secondary organic aerosols and contribute substantially to severe air pollution in urban areas in China. Discrepancies exist between different bottom-up inventories for benzene and toluene emissions in the Pearl River Delta (PRD) and Hong Kong (HK), which are emission hot spots in China. This study provides top-down estimates of benzene and toluene emissions in the PRD and HK using atmospheric measurement data from a rural site in the area, Heshan, an atmospheric transport model, and an inverse modeling method. The model simulations captured the measured mixing ratios during most pollution episodes. For the PRD and HK, the benzene emissions estimated in this study for 2010 were 44aEuro-(12-75) and 5aEuro-(2-7)aEuro-GgaEuro-yr(-1) for the PRD and HK, respectively, and the toluene emissions were 131aEuro-(44-218) and 6aEuro-(2-9)aEuro-GgaEuro-yr(-1), respectively. Temporal and spatial differences between the inversion estimate and four different bottom-up emission estimates are discussed, and it is proposed that more observations at different sites are urgently needed to better constrain benzene and toluene (and other air pollutant) emissions in the PRD and HK in the future.; Natural Science Foundation for Outstanding Young Scholars [41125018]; National Aeronautics and Space Administration (NASA) [NNX11AF17G]; [41330635]; SCI(E); ARTICLE; fangxk@mit.edu; mshao@pku.edu.cn; 5; 3369-3382; 16
语种	中文
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/438845]
专题	环境科学与工程学院
推荐引用方式 GB/T 7714	Fang, Xuekun,Shao, Min,Stohl, Andreas,et al. Top-down estimates of benzene and toluene emissions in the Pearl River Delta and Hong Kong, China[J]. ATMOSPHERIC CHEMISTRY AND PHYSICS,2016.
APA	Fang, Xuekun.,Shao, Min.,Stohl, Andreas.,Zhang, Qiang.,Zheng, Junyu.,...&Prinn, Ronald G..(2016).Top-down estimates of benzene and toluene emissions in the Pearl River Delta and Hong Kong, China.ATMOSPHERIC CHEMISTRY AND PHYSICS.
MLA	Fang, Xuekun,et al."Top-down estimates of benzene and toluene emissions in the Pearl River Delta and Hong Kong, China".ATMOSPHERIC CHEMISTRY AND PHYSICS (2016).