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

文献类型：期刊论文

作者Dai, Haosheng1,2; Gui, Huaqiao1,3; Zhang, Jiaoshi1; Wei, Xiuli1,3; Xie, Zhibo3,4; Bian, Jiejie1,2; Chen, Da-Ren5; Liu, Jianguo1,3,4
刊名JOURNAL OF AEROSOL SCIENCE
出版日期2021-11-01
卷号158
ISSN号0021-8502
关键词DAASS Aerosol liquid water content RH control Hygroscopic growth
DOI10.1016/j.jaerosci.2021.105831
通讯作者Zhang, Jiaoshi(jszhang@aiofm.ac.cn) ; Liu, Jianguo()
英文摘要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%.
WOS关键词PARTICLE HYGROSCOPICITY ; GROWTH ; CHINA
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]
WOS研究方向Engineering ; Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences
语种英语
出版者ELSEVIER SCI LTD
WOS记录号WOS:000707390200004
资助机构National Nature Science Foundation of China ; National Key R&D Program of China ; Science and Technological Fund of Anhui Province
源URL[http://ir.hfcas.ac.cn:8080/handle/334002/125651]  
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
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).

入库方式： OAI收割

来源：合肥物质科学研究院

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