Seasonal Variation of Ammonia and Ammonium Aerosol at a Background Station in the Yangtze River Delta Region, China

doi:10.4209/aaqr.2013.02.0046

CORC > 地球环境研究所 > 中国科学院地球环境研究所 > 粉尘与环境研究室

	Seasonal Variation of Ammonia and Ammonium Aerosol at a Background Station in the Yangtze River Delta Region, China
	Meng, ZY (Meng, Zhaoyang)[ 1 ]; Lin, WL (Lin, Weili)[ 3 ]; Jia, XF (Jia, Xiaofang)[ 3 ]; Wang, GH (Wang, Gehui)[ 5 ]; Yu, XL (Yu, Xiaolan)[ 1 ]; Yu, XM (Yu, Xiangming)[ 4 ]; Zhang, RJ (Zhang, Renjian)[ 2 ]
刊名	AEROSOL AND AIR QUALITY RESEARCH
	2014-04-15
卷号	14 期号:3 页码:756-766
关键词	Passive Sampling Atmospheric Nitrogen Pm2.5 Air Mass Back Trajectory
DOI	10.4209/aaqr.2013.02.0046
文献子类	期刊论文
英文摘要	The measurement of atmospheric NH3 was conducted by mean of passive samplers from September 2009 to December 2010 at Lin'an regional background station located in the economically blooming Yangtze River Delta (YRD) region in eastern China. NH4+ in fine particles was also measured in 2010 at this site. The NH3 concentration ranged from 0.1 to 41.8 ppb, with the annual average of 16.5 +/- 11.2 ppb in 2010. The daily NH4+ concentrations ranged from 0.02 to 19.2 mu g/m(3), with an annual average of 4.3 +/- 3.5 mu g/m(3). NH3 concentrations were highest in summer and lowest in winter, showing positive correlations with agricultural activities and temperature. The highest concentrations of NH4+ were in autumn coinciding with the period of active open burning of agricultural residues. The mean mass ratio of NH3/NHx is estimated to be 0.8 +/- 0.1 during 2010, indicating that NHx was mainly influenced by local sources around Lin'an. The air mass back trajectory analysis suggests that both local sources and long-distance transport played important roles in the observed ammonium aerosol at Lin'an. High NHx deposition in this regional background station suggests the urgency of reducing NH3 emission in the YRD region.
语种	英语
内容类型	期刊论文
源URL	[http://ir.ieecas.cn/handle/361006/9762]
专题	地球环境研究所_粉尘与环境研究室
通讯作者	Meng, ZY (Meng, Zhaoyang)[ 1 ]
作者单位	1.CMA Meteorological Observation Centre, Beijing 100081, China; 2.Lin’an Regional Air Background Station, Lin’an 311307, China; 3.SKLLQG, Institute of Earth Environment, Chinese Academy of Sciences, Xi'an 710075, China 4.Key Laboratory for Atmospheric Chemistry of CMA, Institute of Atmospheric Composition, Chinese Academy ofMeteorological Sciences, Beijing 100081, China; 5.Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing 100029, China;
推荐引用方式 GB/T 7714	Meng, ZY ,Lin, WL ,Jia, XF ,et al. Seasonal Variation of Ammonia and Ammonium Aerosol at a Background Station in the Yangtze River Delta Region, China[J]. AEROSOL AND AIR QUALITY RESEARCH,2014,14(3):756-766.
APA	Meng, ZY .,Lin, WL .,Jia, XF .,Wang, GH .,Yu, XL .,...&Zhang, RJ .(2014).Seasonal Variation of Ammonia and Ammonium Aerosol at a Background Station in the Yangtze River Delta Region, China.AEROSOL AND AIR QUALITY RESEARCH,14(3),756-766.
MLA	Meng, ZY ,et al."Seasonal Variation of Ammonia and Ammonium Aerosol at a Background Station in the Yangtze River Delta Region, China".AEROSOL AND AIR QUALITY RESEARCH 14.3(2014):756-766.