Enhanced aqueous formation and neutralization of fine atmospheric particles driven by extreme cold-Reference-Cited by-同舟云学术

Enhanced aqueous formation and neutralization of fine atmospheric particles driven by extreme cold

Published:2024-09-06 Issue:36 Volume:10 Page:
ISSN:2375-2548
Container-title:Science Advances
language:en
Short-container-title:Sci. Adv.

Author:

Campbell James R.¹^ORCID,Michael Battaglia Jr. ²^ORCID,Dingilian Kayane K.²^ORCID,Cesler-Maloney Meeta¹^ORCID,Simpson William R.¹^ORCID,Robinson Ellis S.³,DeCarlo Peter F.³^ORCID,Temime-Roussel Brice⁴^ORCID,D’Anna Barbara⁴^ORCID,Holen Andrew L.⁵,Wu Judy⁵^ORCID,Pratt Kerri A.⁵^ORCID,Dibb Jack E.⁶^ORCID,Nenes Athanasios²⁷⁸^ORCID,Weber Rodney J.²^ORCID,Mao Jingqiu¹^ORCID

Affiliation:

1. Geophysical Institute and Department of Chemistry and Biochemistry, University of Alaska Fairbanks, Fairbanks, AK 99775, USA.

2. School of Earth and Atmospheric Sciences, Georgia Institute of Technology, Atlanta, GA 30332, USA.

3. Department of Environmental Health and Engineering, John Hopkins University, Baltimore, MD 21218, USA.

4. Aix Marseille Univ, CNRS, LCE, Marseille, France.

5. Department of Chemistry, University of Michigan, Ann Arbor, MI 48109, USA.

6. Institute for the Study of Earth, Oceans, and Space, University of New Hampshire, Durham, NH 03824, USA.

7. Laboratory of Atmospheric Processes and their Impacts, School of Architecture, Civil and Environmental Engineering, École Polytechnique Fédérale de Lausanne, Lausanne 1015, Switzerland.

8. Center for the Study of Air Quality and Climate Change, Institute of Chemical Engineering Sciences, Foundation for Research and Technology Hellas, Patras 26504, Greece.

Abstract

The prevailing view for aqueous secondary aerosol formation is that it occurs in clouds and fogs, owing to the large liquid water content compared to minute levels in fine particles. Our research indicates that this view may need reevaluation due to enhancements in aqueous reactions in highly concentrated small particles. Here, we show that low temperature can play a role through a unique effect on particle pH that can substantially modulate secondary aerosol formation. Marked increases in hydroxymethanesulfonate observed under extreme cold in Fairbanks, Alaska, demonstrate the effect. These findings provide insight on aqueous chemistry in fine particles under cold conditions expanding possible regions of secondary aerosol formation that are pH dependent beyond conditions of high liquid water.

Publisher

American Association for the Advancement of Science (AAAS)

Link

https://www.science.org/doi/pdf/10.1126/sciadv.ado4373

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