Climatology of aerosol pH and its controlling factors at the Melpitz continental background site in central Europe

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dc.contributor.authorPratap, Vikram
dc.contributor.authorHennigan, Christopher
dc.contributor.authorStieger, Bastian
dc.contributor.authorTilgner, Andreas
dc.contributor.authorPoulain, Laurent
dc.contributor.authorvan Pinxteren, Dominik
dc.contributor.authorSpindler, Gerald
dc.contributor.authorHerrmann, Hartmut
dc.date.accessioned2025-04-01T14:55:12Z
dc.date.available2025-04-01T14:55:12Z
dc.date.issued2025-02-10
dc.description.abstract Aerosol acidity has importance for the chemical and physical properties of atmospheric aerosol particles and for many processes that affect their transformations and fate. Here, we characterize trends in aerosol pH and its controlling factors over the period of 2010 – 2019 at the Melpitz research station in eastern Germany, a continental background site in central Europe. Aerosol liquid water content (ALWC) decreased by 50 % during the analyzed time period in response to decreasing sulfate and nitrate. Aerosol pH exhibited an increase of 0.06 units per year, a trend that was distinct from other regions. Seasonal analysis showed strong variability in factors controlling aerosol pH.
dc.description.sponsorshipC.H. and V.P. acknowledge support from the National Science Foundation through grants AGS-1719252 and AGS-2430366. The TROPOS co-authors acknowledge financial support for the deployment of the MARGA system by the German federal environment protection agency Umweltbundesamt (UBA) under 570 contract no. 52436 as well as from the European Regional Development fund by the European Union under contract no. 100188826. Further support by the European infrastructure projects ACTRIS (EU FP7; grant no. 262254) and ACTRIS-2 (grant no. 654109) and the RI-URBANS project (grant no. 101036245) are gratefully acknowledged.
dc.description.urihttps://egusphere.copernicus.org/preprints/2025/egusphere-2025-457/
dc.format.extent36 pages
dc.genrejournal articles
dc.genrepreprints
dc.identifierdoi:10.13016/m2zgqj-sirf
dc.identifier.citationPratap, V., Hennigan, C. J., Stieger, B., Tilgner, A., Poulain, L., van Pinxteren, D., Spindler, G., and Herrmann, H.: Climatology of aerosol pH and its controlling factors at the Melpitz continental background site in central Europe, EGUsphere [preprint], https://doi.org/10.5194/egusphere-2025-457, 2025.
dc.identifier.urihttps://doi.org/10.5194/egusphere-2025-457
dc.identifier.urihttp://hdl.handle.net/11603/37872
dc.language.isoen_US
dc.publisherEGU
dc.relation.isAvailableAtThe University of Maryland, Baltimore County (UMBC)
dc.relation.ispartofUMBC Chemical, Biochemical & Environmental Engineering Department
dc.relation.ispartofUMBC Faculty Collection
dc.rightsAttribution 4.0 International
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/
dc.titleClimatology of aerosol pH and its controlling factors at the Melpitz continental background site in central Europe
dc.typeText
dcterms.creatorhttps://orcid.org/0000-0002-2454-2838
dcterms.creatorhttps://orcid.org/0000-0002-3775-5656

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