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Characteristics of carbonate carbon in PM2.5 in a typical semi-arid area of Northeastern China
Ho,KF (Ho, K. F.)[1,2]; Zhang,RJ (Zhang, R. J.)[3]; Lee,SC (Lee, S. C.)[2]; Ho,SSH (Ho, Steven Sai Hang)[1,2]; Liu,SX (Liu, S. X.)[1,2]; Fung,K (Fung, Kochy)[4]; Cao,JJ (Cao, J. J.)[1]; Shen,ZX (Shen, Z. X.)[5]; Xu,HM (Xu, H. M.)[1]
2011-02-28
发表期刊ATMOSPHERIC ENVIRONMENT
卷号45期号:6页码:1268-1274
文章类型期刊论文
摘要

Daily concentrations of carbonate carbon (CC) in PM(2.5) collected in semi-arid area in Northeast China (Tongyu) were quantified by acidification that measures carbon dioxide (CO(2)) gas evolved using DRI Model 2001 Thermal Optical reflectance (TOR) Carbon Analyzer. The concentrations of CC during Asian dust storm (DS) and non-dust storm (NDS) periods during 14 April to 21 June, 2006 were determined and the transport pathways and possible sources for the CO(3)(2-) aerosols were identified. Concentrations of CC in PM(2.5) collected from 14 April to 23 June, 2006 in Tongyu are ranged from 0.1 to 7.5 mu gC m(-3) with an average of 1.3 mu gC m(-3). The average CC concentration during DS events was 2.6 +/- 1.7 mu g m(-3), which was almost 4 times the daily average concentration of 0.6 +/- 0.5 mu g m(-3) during non-dust storm (NDS) period. Carbonate carbon accounted for 10% and 4% of total carbon in Tongyu during DS and NDS period, respectively. Carbonate concentrations were also derived by calculating the difference between cations and anions (ionic balance method). And good correlation is observed for the carbonate measured to the values for carbonate calculated from the ionic balance difference (R(2) = 0.90). Higher correlations were observed between Ca with selected water-soluble ions (sulfate, nitrate or chloride) and elemental carbon in DS than in NDS periods. This is consistent with previous studies that more calcium salts (sulfate, nitrate or chloride) were formed during atmospheric transport during DS period. During the DS in spring 2006, three groups (A to C) of air mass trajectories were identified that passed over Tongyu. In general, when the air mass came from northwest, and south or southwest to Tongyu, high concentrations of carbonate were observed.

关键词Semi-arid area Carbonate carbon Dust storm Tongyu
DOI10.1016/j.atmosenv.2010.12.007
收录类别SCI
语种英语
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被引频次:12[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ieecas.cn/handle/361006/10294
专题粉尘与环境研究室
通讯作者Ho,KF (Ho, K. F.)[1,2]
作者单位1.SKLLQG, Institute of Earth Environment, Chinese Academy of Sciences, Xi’an 710075, China;
2.Department of Civil and Structural Engineering, Research Center for Environmental Technology and Management, The Hong Kong Polytechnic University,Hung Hom, Hong Kong, China;
3.Key Laboratory of Regional Climate-Environment Research for Temperate East Asia, Institute of Atmospheric Physics, Chinese Academy of Sciences,START Regional Center for Temperate East Asia, Beijing 100029, China;
4.Atmoslytic, Inc., Calabasas, CA, USA;
5.Department of Environmental Science and Engineering, Xi’an Jiaotong University, Xi’an 710049, China
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GB/T 7714
Ho,KF ,Zhang,RJ ,Lee,SC ,et al. Characteristics of carbonate carbon in PM2.5 in a typical semi-arid area of Northeastern China[J]. ATMOSPHERIC ENVIRONMENT,2011,45(6):1268-1274.
APA Ho,KF .,Zhang,RJ .,Lee,SC .,Ho,SSH .,Liu,SX .,...&Xu,HM .(2011).Characteristics of carbonate carbon in PM2.5 in a typical semi-arid area of Northeastern China.ATMOSPHERIC ENVIRONMENT,45(6),1268-1274.
MLA Ho,KF ,et al."Characteristics of carbonate carbon in PM2.5 in a typical semi-arid area of Northeastern China".ATMOSPHERIC ENVIRONMENT 45.6(2011):1268-1274.
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