People
Here you can find more information about our group members and their contact details.
Mikael Ehn
Associate Professor, Group Leader
Research Topics
Reaction pathways and fates of volatile organic compounds in the atmosphere, especially concerning their role in forming low-volatile compounds and secondary organic aerosol
Email: mikael.ehn [at] helsinki.fi
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PhD Student
Research Topics
Aerosol Mass Spectrometry, Chemometrics
Scientific Background
Aerosol and Environmental Physics
Email: mikko.aijala [at] helsinki.fi
Federico Bianchi
Olga Garmash
PhD Student
Research Topic
Formation of Highly Oxygenated Molecules (HOM) from aromatic compounds
New Particle Formation and HOM in urban areas
Scientific Background
Aerosol Physics
Email: olga.garmash [at] helsinki.fi
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Liine Heikkinen
PhD Student
Research Topic
Investigating secondary aerosols with ACSM, AMS and FIGAERO Mass Spectrometry
Scientific Background
Meteorology
Email: liine.heikkinen [at] helsinki.fi
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Otso Peräkylä
PhD Student
Research Topic
Formation and properties of highly oxygenated multifunctional organic compounds (HOMs) under different environmental conditions
Scientific Background
Meteorology
Email: otso.perakyla [at] helsinki.fi
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Lauriane Quéléver
PhD Student
Research Topic
Impact of the temperature on the formation and the evolution of Biogenic Highly oxidized molecules ( HOMs)
Scientific Background
Chemistry / Spectroscopy
Email: lauriane.quelever [at] helsinki.fi
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Matti Rissanen
Postdoctoral Researcher
Research Topic
Gas-phase aerosol precursor formation
Main focus: autoxidation of organic compounds generating low volatile material
Particle formation by halogen oxide chemistry
Scientific Background
Physical Chemistry, Atmospheric & Combustion chemistry, Organic chemistry
Email: matti.p.rissanen [at] helsinki.fi
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Matthieu Riva
Postdoctoral Researcher
Research Topic
Atmospheric chemistry
Scientific Background
Analytical Chemistry
Email: matthieu.riva [at] helsinki.fi
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Yonghong Wang
Postdoctoral Researcher
Research Topic
HOMs and their role in secondary aerosol formation
Scientific Background
Atmospheric Physics and Environment
Email: yonghong.wang [at] helsinki.fi
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Chao Yan
PhD Student
Research Topic
Positive Matrix Factorization (PMF) based on CIMS data
NOx effect on HOM formation
New-particle formation under various atmospheric conditions
Email: chao.yan[at]helsinki.fi
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Qiaozhi Zha
PhD Student
Research Topics
Field measurements of highly oxidized multifunctional (HOM) molecules
Scientific Background
Chemistry and Meteorology
Email: qiaozhi.zha [at] helsinki.fi
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Yanjun Zhang
Postdoctoral Researcher
Research Topics
Formation of secondary organic aerosol, with emphasis of highly oxidized molecules (HOM) from anthropogenic precursors.
Scientific Background
Environmental chemistry
Email: yanjun.zhang [at] helsinki.fi
Master's Student
Research Topics
Formation and properties of highly oxygenated multifunctional organic compounds (HOMs).
Scientific Background
Meteorology
Email: meri.raty [at] helsinki.fi
Master Student
Scientific Background
Physics
Email: frans.graeffe [at] helsinki.fi
Master Student
Email: melissa.meder [at] helsinki.fi