An active RH-controlled dry-ambient aerosol size spectrometer (DAASS) for the accurate measurement of ambient aerosol water content

doi:10.1016/j.jaerosci.2021.105831

HFCAS OpenIR

	An active RH-controlled dry-ambient aerosol size spectrometer (DAASS) for the accurate measurement of ambient aerosol water content
	Dai, Haosheng 1,2; Gui, Huaqiao1,3 ; Zhang, Jiaoshi 1; Wei, Xiuli1,3 ; Xie, Zhibo 3,4; Bian, Jiejie 1,2; Chen, Da-Ren 5; Liu, Jianguo1,3,4
	2021-11-01
发表期刊	JOURNAL OF AEROSOL SCIENCE
ISSN	0021-8502
通讯作者	Zhang, Jiaoshi(jszhang@aiofm.ac.cn) ; Liu, Jianguo()
摘要	A dry-ambient aerosol size spectrometer (DAASS) was previously developed to conduct measurements of aerosol water content at ambient relative humidity (RH) conditions. However, the RH difference of ambient RH and DAASS conditioning humidity (i.e., 10-20%, particularly when the DAASS operated at a high ambient RH) may introduce uncertainties in estimation of aerosol water content. In this study, we present a prototype of an RH-controlled DAASS. By employing an active RH controlling method, we resolve the discrepancy between the ambient RH and the DAASS conditioning RH, therefore extending the accurate measurement of aerosol water content to a wide RH range. The performance of this RH-controlled DAASS was characterized by both the laboratory evaluation and a 10-day field deployment. Results showed that the DAASS conditioning RH agreed well with the ambient RH (R2 of 0.993 when ambient RH up to 90%), with an average RH offset of less than 1.5%. The fraction of aerosol-bound water in the total ambient aerosol volume was -10% under RHs below 50% and increased to -50% when the ambient RH reached above 85%.
关键词	DAASS Aerosol liquid water content RH control Hygroscopic growth
DOI	10.1016/j.jaerosci.2021.105831
关键词[WOS]	PARTICLE HYGROSCOPICITY ; GROWTH ; CHINA
收录类别	SCI
语种	英语
资助项目	National Nature Science Foundation of China[41905028] ; National Nature Science Foundation of China[91544218] ; National Key R&D Program of China[2017YFC0209504] ; Science and Technological Fund of Anhui Province[1908085MD114]
项目资助者	National Nature Science Foundation of China ; National Key R&D Program of China ; Science and Technological Fund of Anhui Province
WOS研究方向	Engineering ; Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences
WOS类目	Engineering, Chemical ; Engineering, Mechanical ; Environmental Sciences ; Meteorology & Atmospheric Sciences
WOS记录号	WOS:000707390200004
出版者	ELSEVIER SCI LTD
引用统计	被引频次：3[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.hfcas.ac.cn:8080/handle/334002/125652
专题	中国科学院合肥物质科学研究院
通讯作者	Zhang, Jiaoshi; Liu, Jianguo
作者单位	1.Chinese Acad Sci, Anhui Inst Opt & Fine Mech, Hefei Inst Phys Sci, Key Lab Environm Opt & Technol, Hefei, Peoples R China 2.Univ Sci & Technol China, Hefei, Peoples R China 3.Chinese Acad Sci, CAS Ctr Excellence Reg Atmospher Environm, Inst Urban Environm, Xiamen, Peoples R China 4.Univ Chinese Acad Sci, Beijing, Peoples R China 5.Virginia Commonwealth Univ, Dept Mech & Nucl Engn, Particle Lab, Richmond, VA USA
第一作者单位	中科院安徽光学精密机械研究所
通讯作者单位	中科院安徽光学精密机械研究所
推荐引用方式 GB/T 7714	Dai, Haosheng,Gui, Huaqiao,Zhang, Jiaoshi,et al. An active RH-controlled dry-ambient aerosol size spectrometer (DAASS) for the accurate measurement of ambient aerosol water content[J]. JOURNAL OF AEROSOL SCIENCE,2021,158.
APA	Dai, Haosheng.,Gui, Huaqiao.,Zhang, Jiaoshi.,Wei, Xiuli.,Xie, Zhibo.,...&Liu, Jianguo.(2021).An active RH-controlled dry-ambient aerosol size spectrometer (DAASS) for the accurate measurement of ambient aerosol water content.JOURNAL OF AEROSOL SCIENCE,158.
MLA	Dai, Haosheng,et al."An active RH-controlled dry-ambient aerosol size spectrometer (DAASS) for the accurate measurement of ambient aerosol water content".JOURNAL OF AEROSOL SCIENCE 158(2021).