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Ilona Riipinen
Tampere University of Technology
210Publications
45H-index
8,143Citations
Publications 210
Newest
Published on Mar 28, 2019in Geophysical Research Letters 4.58
I. Bulatovic (Stockholm University), Annica M. L. Ekman19
Estimated H-index: 19
(Stockholm University)
+ 2 AuthorsCaroline Leck40
Estimated H-index: 40
(Stockholm University)
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Published on Dec 1, 2018in Scientific Reports 4.01
Tinja Olenius7
Estimated H-index: 7
(Stockholm University),
Lukas Pichelstorfer4
Estimated H-index: 4
(University of Salzburg)
+ 3 AuthorsIlona Riipinen45
Estimated H-index: 45
(Stockholm University)
Comprehensive representation of nanoparticle dynamics is necessary for understanding nucleation and growth phenomena. This is critical in atmospheric physics, as airborne particles formed from vapors have significant but highly uncertain effects on climate. While the vapor–particle mass exchange driving particle growth can be described by a macroscopic, continuous substance for large enough particles, the growth dynamics of the smallest nanoparticles involve stochastic fluctuations in particle s...
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Published on Dec 1, 2018in Science Advances
Katrianne Lehtipalo4
Estimated H-index: 4
(UH: University of Helsinki),
Chao Yan9
Estimated H-index: 9
(UH: University of Helsinki)
+ 89 AuthorsAndrea Baccarini2
Estimated H-index: 2
(Paul Scherrer Institute)
A major fraction of atmospheric aerosol particles, which affect both air quality and climate, form from gaseous precursors in the atmosphere. Highly oxygenated organic molecules (HOMs), formed by oxidation of biogenic volatile organic compounds, are known to participate in particle formation and growth. However, it is not well understood how they interact with atmospheric pollutants, such as nitrogen oxides (NO x ) and sulfur oxides (SO x ) from fossil fuel combustion, as well as ammonia (NH 3 )...
4 Citations Source Cite
Published on Sep 27, 2018in Atmospheric Chemistry and Physics 5.67
Jenni Kontkanen11
Estimated H-index: 11
(UH: University of Helsinki),
Tinja Olenius7
Estimated H-index: 7
(Stockholm University)
+ 1 AuthorsIlona Riipinen45
Estimated H-index: 45
(Stockholm University)
Abstract. Atmospheric new particle formation (NPF) occurs by the formation of nanometer-sized molecular clusters and their subsequent growth to larger particles. NPF involving sulfuric acid, bases and oxidized organic compounds is an important source of atmospheric aerosol particles. One of the mechanisms suggested to depict this process is nano-Kohler theory, which describes the activation of inorganic molecular clusters to growth by a soluble organic vapor. In this work, we studied the capabil...
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Published on Sep 27, 2018in Atmospheric Chemistry and Physics 5.67
David Patoulias4
Estimated H-index: 4
(University of Patras),
Christos Fountoukis4
Estimated H-index: 4
(Qatar Airways)
+ 3 AuthorsSpyros N. Pandis79
Estimated H-index: 79
(CMU: Carnegie Mellon University)
Abstract. PMCAMx-UF, a three-dimensional chemical transport model focusing on the simulation of the ultrafine particle size distribution and composition has been extended with the addition of the volatility basis set (VBS) approach for the simulation of organic aerosol (OA). The model was applied in Europe to quantify the effect of secondary semi-volatile organic vapors on particle number concentrations. The model predictions were evaluated against field observations collected during the PEGASOS...
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Published on Aug 3, 2018in Atmospheric Chemistry and Physics 5.67
M. Boy34
Estimated H-index: 34
(UH: University of Helsinki),
Erik S. Thomson10
Estimated H-index: 10
(University of Gothenburg)
+ 60 AuthorsPavla Dagsson-Waldhauserova9
Estimated H-index: 9
(Agricultural University of Iceland)
Abstract. The Nordic Centre of Excellence CRAICC (Cryosphere–Atmosphere Interactions in a Changing Arctic Climate), funded by NordForsk in the years 2011–2016, is the largest joint Nordic research and innovation initiative to date, aiming to strengthen research and innovation regarding climate change issues in the Nordic region. CRAICC gathered more than 100 scientists from all Nordic countries in a virtual centre with the objectives of identifying and quantifying the major processes controlling...
1 Citations Source Cite
Published on May 2, 2018in Atmospheric Chemistry and Physics 5.67
Jenni Kontkanen11
Estimated H-index: 11
(UH: University of Helsinki),
Tinja Olenius7
Estimated H-index: 7
(Stockholm University)
+ 1 AuthorsIlona Riipinen45
Estimated H-index: 45
(Stockholm University)
Abstract. New particle formation involving sulfuric acid, bases and oxidized organic compounds is an important source of atmospheric aerosol particles. One of the mechanisms suggested to depict this process is the nano-Kohler theory, which describes the activation of inorganic molecular clusters to growth by a soluble organic vapor. In this work we studied the capability of the nano-Kohler theory to describe the growth of atmospheric molecular clusters by simulating the dynamics of a cluster pop...
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Published on Mar 26, 2018in Atmospheric Chemistry and Physics 5.67
David Patoulias4
Estimated H-index: 4
(FORTH: Foundation for Research & Technology – Hellas),
Christos Fountoukis4
Estimated H-index: 4
(FORTH: Foundation for Research & Technology – Hellas)
+ 3 AuthorsSpyros N. Pandis79
Estimated H-index: 79
(FORTH: Foundation for Research & Technology – Hellas)
Abstract. PMCAMx-UF, a three-dimensional chemical transport model focusing on the simulation of the ultrafine particle size distribution and composition has been extended with the addition of the volatility basis set (VBS) approach for the simulation of organic aerosol (OA). The model was applied in Europe to quantify the effect of secondary semi-volatile organic vapors on particle number concentrations. The model predictions were evaluated against field observations collected during the PEGASOS...
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Published on Jan 16, 2018in Environmental Science & Technology 7.15
Jan Julin8
Estimated H-index: 8
(Stockholm University),
Benjamin N. Murphy9
Estimated H-index: 9
(EPA: United States Environmental Protection Agency)
+ 4 AuthorsIlona Riipinen45
Estimated H-index: 45
(Stockholm University)
Although they are currently unregulated, atmospheric ultrafine particles (<100 nm) pose health risks because of, e.g., their capability to penetrate deep into the respiratory system. Ultrafine particles, often minor contributors to atmospheric particulate mass, typically dominate aerosol particle number concentrations. We simulated the response of particle number concentrations over Europe to recent estimates of future emission reductions of aerosol particles and their precursors. We used the ch...
2 Citations Source Cite
Published on Jan 1, 2018
Tinja Olenius7
Estimated H-index: 7
(Stockholm University),
Taina Yli-Juuti5
Estimated H-index: 5
(University of Eastern Finland)
+ 2 AuthorsIlona Riipinen45
Estimated H-index: 45
(Stockholm University)
Abstract This chapter discusses the phenomena that drive atmospheric new particle formation and growth from condensable vapors. The chapter begins with a general introduction to atmospheric gas-to-particle conversion and the participating compounds and proceeds to discuss the detailed chemistry and physics related to different stages of the process. The two main sections focus on the initial formation of molecular clusters of 1–3 nm from gas-phase molecules and on the further growth of these nan...
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