Articles | Volume 19, issue 2
https://doi.org/10.5194/acp-19-941-2019
© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/acp-19-941-2019
© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
24 Jan 2019
Research article |
| 24 Jan 2019
| 24 Jan 2019
Cloud droplet activation of secondary organic aerosol is mainly controlled by molecular weight, not water solubility
Environmental and Climate Sciences Department, Brookhaven National
Laboratory, Upton, New York 11973, USA
Center for Aerosol Science and Engineering, Department of Energy,
Environmental and Chemical Engineering, Washington University in St. Louis,
Missouri, USA
John E. Shilling
Atmospheric Sciences and Global Change Division, Pacific Northwest
National Laboratory, Richland, Washington 99354, USA
Jiumeng Liu
Atmospheric Sciences and Global Change Division, Pacific Northwest
National Laboratory, Richland, Washington 99354, USA
present address: School of Environment, Harbin Institute of
Technology, Harbin, 150001, China
Alla Zelenyuk
Physical Sciences Division, Pacific Northwest National Laboratory,
Richland, Washington 99354, USA
David M. Bell
Physical Sciences Division, Pacific Northwest National Laboratory,
Richland, Washington 99354, USA
present address: Laboratory of Atmospheric Chemistry, Paul Scherrer
Institute, 5232 Villigen-PSI, Switzerland
Markus D. Petters
Department of Marine, Earth, and Atmospheric Sciences, North Carolina
State University at Raleigh, Raleigh, North Carolina 27695, USA
Ryan Thalman
Environmental and Climate Sciences Department, Brookhaven National
Laboratory, Upton, New York 11973, USA
present address: Department of Chemistry, Snow College, Richfield,
Utah 84627, USA
Atmospheric Sciences and Global Change Division, Pacific Northwest
National Laboratory, Richland, Washington 99354, USA
Rahul A. Zaveri
Atmospheric Sciences and Global Change Division, Pacific Northwest
National Laboratory, Richland, Washington 99354, USA
Guangjie Zheng
Environmental and Climate Sciences Department, Brookhaven National
Laboratory, Upton, New York 11973, USA
Center for Aerosol Science and Engineering, Department of Energy,
Environmental and Chemical Engineering, Washington University in St. Louis,
Missouri, USA
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- Ultrafine particles in urban settings: A combined study of volatility and effective density revealed by VT-DMA-APM C. Wu et al. 10.1016/j.atmosenv.2023.120054
30 citations as recorded by crossref.
- Effects of Photolysis on the Chemical and Optical Properties of Secondary Organic Material Over Extended Time Scales E. Walhout et al. 10.1021/acsearthspacechem.9b00109
- Relative-humidity-dependent organic aerosol thermodynamics via an efficient reduced-complexity model K. Gorkowski et al. 10.5194/acp-19-13383-2019
- CCN activation of ultrafine biogenic-WSOC under restricted anthropogenic emissions: A study over eastern Himalaya in India M. Dutta et al. 10.1016/j.atmosres.2023.106704
- Cloud condensation nuclei activation properties of Mediterranean pollen types considering organic chemical composition and surface tension effects A. Casans et al. 10.1016/j.atmosenv.2023.119961
- An inversion method for polarity distribution of atmospheric water-soluble organic matter W. Lee et al. 10.1080/02786826.2020.1795482
- Hygroscopicity of organic compounds as a function of organic functionality, water solubility, molecular weight, and oxidation level S. Han et al. 10.5194/acp-22-3985-2022
- Characteristics of PM2.5 hygroscopicity and the influences of water-soluble ions during haze events in Beijing S. Ge et al. 10.1016/j.atmosenv.2024.120382
- The impact of aerosol size-dependent hygroscopicity and mixing state on the cloud condensation nuclei potential over the north-east Atlantic W. Xu et al. 10.5194/acp-21-8655-2021
- Long-range transported North American wildfire aerosols observed in marine boundary layer of eastern North Atlantic G. Zheng et al. 10.1016/j.envint.2020.105680
- Interactions between aerosol organic components and liquid water content during haze episodes in Beijing X. Li et al. 10.5194/acp-19-12163-2019
- Aqueous particle generation with a 3D printed nebulizer M. Rösch & D. Cziczo 10.5194/amt-13-6807-2020
- Measurement report: Cloud condensation nuclei activity and its variation with organic oxidation level and volatility observed during an aerosol life cycle intensive operational period (ALC-IOP) F. Mei et al. 10.5194/acp-21-13019-2021
- On the evolution of sub- and super-saturated water uptake of secondary organic aerosol in chamber experiments from mixed precursors Y. Wang et al. 10.5194/acp-22-4149-2022
- Hygroscopicity of nitrogen-containing organic carbon compounds: o-aminophenol and p-aminophenol K. Malek et al. 10.1039/D2EM00163B
- Relationships of the Hygroscopicity of HULIS With Their Degrees of Oxygenation and Sources in the Urban Atmosphere R. Zhou et al. 10.1029/2022JD037163
- Characterization of Aerosol Hygroscopicity Over the Northeast Pacific Ocean: Impacts on Prediction of CCN and Stratocumulus Cloud Droplet Number Concentrations B. Schulze et al. 10.1029/2020EA001098
- The Relationship between Molecular Size and Polarity of Atmospheric Organic Aerosol in Singapore and Its Implications for Volatility and Light Absorption Properties L. Yang et al. 10.1021/acsearthspacechem.1c00274
- Hygroscopicity of polycatechol and polyguaiacol secondary organic aerosol in sub- and supersaturated water vapor environments K. Malek et al. 10.1039/D1EA00063B
- Accounting for Cloud Nucleation Activation Mechanism of Secondary Organic Matter from α-Pinene Oxidation Using Experimentally Retrieved Water Solubility Distributions W. Lee et al. 10.1021/acs.est.3c03039
- Effect of relative humidity, NOx, and ammonia on the physical properties of naphthalene secondary organic aerosols A. Klodt et al. 10.1039/D3EA00033H
- Direct Comparison of the Submicron Aerosol Hygroscopicity of Water-Soluble Sugars J. Dawson et al. 10.1021/acsearthspacechem.0c00159
- A Review on Laboratory Studies and Field Measurements of Atmospheric Organic Aerosol Hygroscopicity and Its Parameterization Based on Oxidation Levels Y. Kuang et al. 10.1007/s40726-020-00164-2
- Quantifying the hygroscopic properties of cyclodextrin containing aerosol for drug delivery to the lungs C. Day et al. 10.1039/D0CP01385D
- Microphysical properties of atmospheric soot and organic particles: measurements, modeling, and impacts W. Li et al. 10.1038/s41612-024-00610-8
- Optical trapping and light scattering in atmospheric aerosol science A. Rafferty et al. 10.1039/D2CP05301B
- A Regional Aerosol Model for the Oceanic Area around Eastern China Based on Aerosol Robotic Network (AERONET) S. Chen et al. 10.3390/rs16061106
- Cloud condensation nuclei (CCN) activity analysis of low-hygroscopicity aerosols using the aerodynamic aerosol classifier (AAC) K. Gohil & A. Asa-Awuku 10.5194/amt-15-1007-2022
- Hygroscopic behavior and aerosol chemistry of atmospheric particles containing organic acids and inorganic salts F. Tan et al. 10.1038/s41612-024-00752-9
- Water Solubility Distribution of Organic Matter Accounts for the Discrepancy in Hygroscopicity among Sub- and Supersaturated Humidity Regimes W. Lee et al. 10.1021/acs.est.2c04647
- Ultrafine particles in urban settings: A combined study of volatility and effective density revealed by VT-DMA-APM C. Wu et al. 10.1016/j.atmosenv.2023.120054
Latest update: 20 Nov 2024
Short summary
Earlier studies showed organic hygroscopicity increases with oxidation level. Such increases have been attributed to higher water solubility for more oxidized organics. By systematically varying the water content of activating droplets, we show that for secondary organic aerosols, essentially all organics are dissolved at the point of droplet activation. Therefore, the organic hygroscopicity is not limited by solubility but is dictated mainly by the molecular weight of organic species.
Earlier studies showed organic hygroscopicity increases with oxidation level. Such increases...
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