{"database":"biostudies-literature","file_versions":[],"scores":null,"additional":{"submitter":["Xenofontos C"],"funding":["National Aeronautics and Space Administration (NASA)","Swiss National Science Foundation","Oesterreichische Nationalbank (OeNB)","Research Council of Finland (AKA)","European Research Council","EC | Horizon Europe | Excellent Science | HORIZON EUROPE Marie Sklodowska-Curie Actions (MSCA)","EC | Horizon 2020 Framework Programme (H2020)","NSF | National Science Foundation Graduate Research Fellowship Program (GRFP)","Bundesministerium für Bildung und Forschung (BMBF)","Vienna Science and Technology Fund (WWTF)"],"pagination":["e2506658122"],"full_dataset_link":["https://www.ebi.ac.uk/biostudies/studies/S-EPMC12595474"],"repository":["biostudies-literature"],"omics_type":["Unknown"],"volume":["122(44)"],"pubmed_abstract":["Anthropogenic ammonia (NH<sub>3</sub>) emissions have significantly increased in recent decades due to enhanced agricultural activities, contributing to global air pollution. While the effects of NH<sub>3</sub> on surface air quality are well documented, its influence on particle dynamics in the upper troposphere-lower stratosphere (UTLS) and related aerosol impacts remain unquantified. NH<sub>3</sub> reaches the UTLS through convective transport and can enhance new particle formation (NPF). This modeling study evaluates the global impact of anthropogenic NH<sub>3</sub> on UTLS particle formation and quantifies its effects on aerosol loading and cloud condensation nuclei (CCN) abundance. We use the EMAC Earth system model, incorporating multicomponent NPF parameterizations from the CERN CL"],"journal":["Proceedings of the National Academy of Sciences of the United States of America"],"pubmed_title":["Global impact of anthropogenic NH&lt;sub&gt;3&lt;/sub&gt; emissions on upper tropospheric aerosol formation."],"pmcid":["PMC12595474"],"funding_grant_id":["337549 (UH) 337552 (FMI) and 337550 (UEF)","1325656 311932 334792 316114 325647 325681 347782 346371 349659","302958","80NSSC19K0949","200021_213071","213071","2023-5223","856612","742206","01LK2201A 01LK2201B and 01LK2201C","200021","101073026","VRG22-003","359331","AGS-2132089","ATM-2215527 AGS-2215522 2027252 2215489 2431817"],"pubmed_authors":["Kunkler F","Simon M","Gordon H","Zgheib I","Dada L","Christoudias T","El Haddad I","Morawiec A","Stolzenburg D","Wang M","Unfer GR","Rorup B","Curtius J","Ruhl S","Pohlker ML","Worsnop DR","Zheng Z","Volkamer R","Yang B","Sommer E","Hopfner M","Onnela A","Caudillo-Plath L","Kulmala M","Xenofontos C","Almeida J","Cruz-Simbron R","Rato P","Winkler PM","Hohler K","Duplissy J","Petaja T","Mohler O","Donahue NM","Flagan RC","Finkenzeller H","Schobesberger S","Lehtipalo K","Schervish M","Ehrhart S","Mentler B","Vettikkat L","Yu W","Harder H","Pozzer A","Tong Y","He XC","Hansel A","Lelieveld J","Scholz W","Umo NS","Sebastian MK","Lietzke CJ","Kirkby J","Russell DM","Kohl M","Kong W"],"additional_accession":[]},"is_claimable":false,"name":"Global impact of anthropogenic NH&lt;sub&gt;3&lt;/sub&gt; emissions on upper tropospheric aerosol formation.","description":"Anthropogenic ammonia (NH<sub>3</sub>) emissions have significantly increased in recent decades due to enhanced agricultural activities, contributing to global air pollution. While the effects of NH<sub>3</sub> on surface air quality are well documented, its influence on particle dynamics in the upper troposphere-lower stratosphere (UTLS) and related aerosol impacts remain unquantified. NH<sub>3</sub> reaches the UTLS through convective transport and can enhance new particle formation (NPF). This modeling study evaluates the global impact of anthropogenic NH<sub>3</sub> on UTLS particle formation and quantifies its effects on aerosol loading and cloud condensation nuclei (CCN) abundance. We use the EMAC Earth system model, incorporating multicomponent NPF parameterizations from the CERN CL","dates":{"release":"2025-01-01T00:00:00Z","publication":"2025 Nov","modification":"2026-05-17T03:22:15.939Z","creation":"2026-05-17T03:13:08.626Z"},"accession":"S-EPMC12595474","cross_references":{"pubmed":["41144663"],"doi":["10.1073/pnas.2506658122"]}}