Articles | Volume 22, issue 1
Measurement report
13 Jan 2022
Measurement report |  | 13 Jan 2022

Measurement report: Particle-size-dependent fluorescence properties of water-soluble organic compounds (WSOCs) and their atmospheric implications for the aging of WSOCs

Juanjuan Qin, Jihua Tan, Xueming Zhou, Yanrong Yang, Yuanyuan Qin, Xiaobo Wang, Shaoxuan Shi, Kang Xiao, and Xinming Wang

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This preprint is open for discussion and under review for Atmospheric Chemistry and Physics (ACP).
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Measurement report: Investigation of pH- and particle-size-dependent chemical and optical properties of water-soluble organic carbon: implications for its sources and aging processes
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Subject: Aerosols | Research Activity: Field Measurements | Altitude Range: Troposphere | Science Focus: Chemistry (chemical composition and reactions)
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Cited articles

Almeida, A. S., Ferreira, R. M. P., Silva, A. M. S., Duarte, A. C., Neves, B. M., and Duarte, R.: Structural features and pro-inflammatory effects of water-soluble organic matter in inhalable fine urban air particles, Environ. Sci. Technol., 54, 1082–1091,, 2020. 
Andrade-Eiroa, Á., Canle, M., and Cerdá, V.: Environmental applications of excitation-emission spectrofluorimetry: An in-depth review I, Appl. Spectrosc. Rev., 48, 1–49,, 2013. 
Asa-Awuku, A., Engelhart, G. J., Lee, B. H., Pandis, S. N., and Nenes, A.: Relating CCN activity, volatility, and droplet growth kinetics of β-caryophyllene secondary organic aerosol, Atmos. Chem. Phys., 9, 795–812,, 2009. 
Bahram, M., Bro, R., Stedmon, C., and Afkhami, A.: Handling of Rayleigh and Raman scatter for PARAFAC modeling of fluorescence data using interpolation, J. Chemometr., 20, 99–105,, 2006. 
Berberan-Santos, M. N. and Valeur, B.: Molecular fluorescence: Principles and Applications, second edn., Wiley-VCH, Germany,, 2012. 
Short summary
Water-soluble organic compounds (WSOCs) play important roles in atmospheric particle formation, migration, and transformation processes. In this work, size-segregated atmospheric particles were collected in a rural area of Beijing, and 3D fluorescence spectroscopy was used to investigate the optical properties of WSOCs as a means of inferring information about their atmospheric sources. It was found that these data could efficiently reveal the secondary transformation processes of WSOCs.
Final-revised paper