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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
Source PublicationATMOSPHERIC ENVIRONMENT
Volume45Issue:6Pages:1268-1274
Subtype期刊论文
Abstract

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.

KeywordSemi-arid area Carbonate carbon Dust storm Tongyu
DOI10.1016/j.atmosenv.2010.12.007
Indexed BySCI
Language英语
Citation statistics
Cited Times:13[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ieecas.cn/handle/361006/10294
Collection粉尘与环境研究室
Corresponding AuthorHo,KF (Ho, K. F.)[1,2]
Affiliation1.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
Recommended Citation
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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