People

Here you can find more information about our group members and their contact details.
Mikael Ehn

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 the formation and evolution of secondary organic aerosol.

Scientific Background

Aerosol Physics

 

Email: mikael.ehn [at] helsinki.fi

For more details, click here

Jian Zhao

Postdoctoral Researcher

Research Topics

The formation and evolution of Highly Oxygenated Organic Molecules (HOM) in both the gas and particle phases.

Detection of secondary organic aerosols (SOA) based on mass spectrometry.

Scientific Background

Atmospheric science, Atmospheric physics, Environmental science

 

Email: jian.zhao [at] helsinki.fi

Maija Peltola

Postdoctoral Researcher

Research Topic

Marine and coastal emissions of volatile compounds and aerosol formation.

Scientific Background

Aerosol physics, Atmospheric science

 

Email: maija.peltola [at] helsinki.fi

For more details, click here.

Wei Huang

Postdoctoral Researcher

Research Topic

Chemical composition and physicochemical  properties of atmospheric organic compounds from both chamber studies and field measurements by the deployment of chemical ionization mass spectrometers (CIMS).

Scientific Background

Aerosol Science, Environmental Science

 

Email: wei.huang [at] helsinki.fi

Otso Peräkylä

Postdoctoral Researcher

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

For more details, click here.

Melissa Meder

Doctoral Researcher

Research Topic

Molecular-level understanding of organic aerosol precursors in the atmosphere.

Scientific Background

Physics, Aerosol Physics

 

Email: melissa.meder [at] helsinki.fi

For more details, click here.

Yuanyuan Luo

Doctoral Researcher

Research Topic

Formation and properties of highly oxygenated molecules (HOM) from different terpenes in the atmosphere.

Indoor air pollution induced by UVC radiation.

Scientific Background

Aerosol Science, Environmental science and engineering

 

Email: yuanyuan.luo [at] helsinki.fi

For more details, click here.

Frans Graeffe

Doctoral Researcher

Research Topic

SOA formation in polluted environments. 

Indoor air quality effects of using UVGI (ultraviolet germicidal irradiation).

Scientific Background

Aerosol physics

 

Email: frans.graeffe [at] helsinki.fi

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Valter Mickwitz

Doctoral Researcher

Research Topic

Methods to study secondary organic aerosol and volatile organic compounds using mass spectrometry.

Scientific Background

Physics, Aerosol physics

 

Email: valter.mickwitz [at] helsinki.fi

Magdalena Okuljar

Doctoral Researcher

Research Topic

Air pollution in Helsinki.

Scientific Background

Analytical chemistry

 

Email: magdalena.okuljar [at] helsinki.fi

Lauriane Quéléver

Doctoral Researcher

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

For more details, click here.

Jiangyi Zhang

Master Student

Research Topic

Formation and properties of highly oxygenated organic molecules (HOMs) and their role in ozone formation with presence of NOx.

Scientific Background

Atmospheric Chemistry and Physics

 

Email: jiangyi.zhang [at] helsinki.fi

Previous group members:
Olga Garmash

Postdoctoral Researcher

Research Topic

Formation of Highly Oxygenated Molecules (HOM) from aromatic compounds.

Investigating New Particle Formation and Highly Oxygenated Organic molecules over forest in Western Siberia.

Scientific Background

Aerosol Physics

 

Email: olga.garmash [at] helsinki.fi

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Liine Heikkinen

Postdoctoral Researcher

Research Topic

Investigating secondary aerosols with ACSM, AMS and FIGAERO Mass Spectrometry.

Scientific Background

Meteorology

 

Email: liine.heikkinen [at] helsinki.fi

For more details, click here.

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

For more details, click here.

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

For more details, click here.

Chao Yan

Postdctoral Researcher

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

For more details, click here

Mikko Äijälä

Postdctoral Researcher

Research Topic

Aerosol Mass Spectrometry, Chemometrics.

Development of Climate Education.

Scientific Background

Aerosol and Environmental Physics

 

Email: mikko.aijala [at] helsinki.fi