Aerosol number size distribution and new particle formation at a   rural/coastal site in Pearl River Delta (PRD) of China

doi:10.1016/j.atmosenv.2008.01.063

CORC > 北京大学 > 环境科学与工程学院

	Aerosol number size distribution and new particle formation at a rural/coastal site in Pearl River Delta (PRD) of China
	Liu, Shang ; Hu, Min ; Wu, Zhijun ; Wehner, Birgit ; Wiedensohler, Alfred ; Cheng, Yafang
刊名	大气环境
	2008
关键词	number size distribution number concentration new particle formation GROWTH RATES
DOI	10.1016/j.atmosenv.2008.01.063
英文摘要	Continuous measurements of aerosol number size distribution in the range of 3 nm-10 mu m were performed in Pearl River Delta (PRD), China. These measurements were made during the period of 3 October to 5 November in 2004 at rural/coastal site, Xinken (22 degrees 37'N, 113 degrees 35'E, 6m above sea level), in the south suburb of Guangzhou City (22 degrees 37'N, 113 degrees 35'E, 6m abovesea level), using a Twin Differential Mobility Particle Sizer (TDMPS) combined with an Aerodynamic Particle Sizer (APS). The aerosol particles at Xinken were divided into four groups according to the observation results: nucleation mode particles (3-30 nm), Aitken mode particles (30-130 nm), accumulation mode particles (130-1000 nm) and coarse mode particles (1-10 mu m). Concentrations of nucleation mode, Aitken mode and accumulation mode particles were observed in the same order of magnitude (about 10,000 cm(-3)), among which the concentration of Aitken mode particle was the highest. The Aitken mode particles usually had two peaks: the morning peak may be caused by the land-sea circulation, which is proven to be important for transporting aged aerosols back to the sampling site, while the noon peak was ascribed to the condensational growth of new particles. New particle formation events were found on 7 days of 27 days, the new particle growth rates ranged from 2.2 to 19.8 nm h(-1) and the formation rates ranged from 0.5 to 5.2 cm(-3) s(-1), both of them were in the range of typical observed formation rates (0.01-10 cm(-3) s(-1)) and typical particle growth rates (1-20 nm h(-1)). The sustained growth of the new particles for several hours under steady northeast wind indicated that the new particle formation events may occur in a large homogeneous air mass. (c) 2008 Elsevier Ltd. All rights reserved.; Environmental Sciences; Meteorology & Atmospheric Sciences; SCI(E); EI; 37; ARTICLE; 25; 6275-6283; 42
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/158677]
专题	环境科学与工程学院
推荐引用方式 GB/T 7714	Liu, Shang,Hu, Min,Wu, Zhijun,et al. Aerosol number size distribution and new particle formation at a rural/coastal site in Pearl River Delta (PRD) of China[J]. 大气环境,2008.
APA	Liu, Shang,Hu, Min,Wu, Zhijun,Wehner, Birgit,Wiedensohler, Alfred,&Cheng, Yafang.(2008).Aerosol number size distribution and new particle formation at a rural/coastal site in Pearl River Delta (PRD) of China.大气环境.
MLA	Liu, Shang,et al."Aerosol number size distribution and new particle formation at a rural/coastal site in Pearl River Delta (PRD) of China".大气环境 (2008).