Wintertime subarctic new particle formation from Kola Peninsula sulfur emissions

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Abstract 2) emissions from the ore smelters are transported to wide areas, including Finnish Lapland. We performed investigations on concentrations of SO2, aerosol precursor vapours, aerosol and ion cluster size distributions together with chemical composition measurements of freshly formed clusters at the SMEAR I station in Finnish Lapland relatively close (∼ 2 from smelter emissions is converted to sulfuric acid (H2 SO4) in sufficient concentrations to drive new particle formation hundreds of kilometres downwind from the emission sources, even at very low solar radiation intensities. Observed new particle formation is primarily initiated by H2 SO4 –ammonia (negative-) ion-induced nucleation. Particle growth to cloud condensation nuclei (CCN) sizes was concluded to result from sulfuric acid condensation. However, air mass advection had a large role in modifying aerosol size distributions, and other growth mechanisms and condensation of other compounds cannot be fully excluded. Our results demonstrate the dominance of SO2 emissions in controlling wintertime aerosol and CCN concentrations in the subarctic region with a heavily polluting industry.

Standort
Deutsche Nationalbibliothek Frankfurt am Main
Umfang
Online-Ressource
Sprache
Englisch

Erschienen in
Wintertime subarctic new particle formation from Kola Peninsula sulfur emissions ; volume:21 ; number:23 ; year:2021 ; pages:17559-17576 ; extent:18
Atmospheric chemistry and physics ; 21, Heft 23 (2021), 17559-17576 (gesamt 18)

Urheber
Sipilä, Mikko
Sarnela, Nina
Neitola, Kimmo
Laitinen, Totti
Kemppainen, Deniz
Beck, Lisa
Duplissy, Ella-Maria
Kuittinen, Salla
Lehmusjärvi, Tuuli
Lampilahti, Janne
Kerminen, Veli-Matti
Lehtipalo, Katrianne
Aalto, Pasi P.
Keronen, Petri
Siivola, Erkki
Rantala, Pekka A.
Worsnop, Douglas R.
Kulmala, Markku
Jokinen, Tuija
Petäjä, Tuukka

DOI
10.5194/acp-21-17559-2021
URN
urn:nbn:de:101:1-2021120904341337064461
Rechteinformation
Open Access; Der Zugriff auf das Objekt ist unbeschränkt möglich.
Letzte Aktualisierung
15.08.2025, 07:29 MESZ

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