Anton Bergen
A5090482922- Atmospheric chemistry and aerosols
- Atmospheric Ozone and Climate
- Air Quality and Health Impacts
- Atmospheric aerosols and clouds
- Vehicle emissions and performance
- Maritime Transport Emissions and Efficiency
- nanoparticles nucleation surface interactions
- Advanced Chemical Physics Studies
- Odor and Emission Control Technologies
- Wind and Air Flow Studies
- Coagulation and Flocculation Studies
- Phase Equilibria and Thermodynamics
- Mass Spectrometry Techniques and Applications
Ministry for Environment, Agriculture, Conservation and Consumer Protection
2022-2023
Landesamt für Natur, Umwelt und Verbraucherschutz Nordrhein-Westfalen
2022-2023
Goethe University Frankfurt
2016-2020
Atmospheric aerosol formation from biogenic vapors is strongly affected by air pollutants, like NO x , SO 2 and NH 3 .
Significance Aerosol particles can form and grow by gas-to-particle conversion eventually act as seeds for cloud droplets, influencing global climate. Volatile organic compounds emitted from plants are oxidized in the atmosphere, resulting products drive particle growth. We measure growth biogenic vapors with a well-controlled laboratory setup over wide range of tropospheric temperatures. While higher temperatures lead to increased reaction rates concentrations highly molecules, lower allow...
Abstract. The exact mechanisms for new particle formation (NPF) under different boundary layer conditions are not known yet. One important question is whether amines and sulfuric acid lead to efficient NPF in the atmosphere. Furthermore, it clear what extent highly oxidized organic molecules (HOMs) involved NPF. We conducted field measurements at a rural site central Germany proximity of three larger dairy farms investigate there connection between presence and/or ammonia due local emissions...
Abstract. Highly oxygenated organic molecules (HOMs) contribute substantially to the formation and growth of atmospheric aerosol particles, which affect air quality, human health Earth's climate. HOMs are formed by rapid, gas-phase autoxidation volatile compounds (VOCs) such as α-pinene, most abundant monoterpene in atmosphere. Due their abundance low volatility, can play an important role new-particle (NPF) early aerosols, even without any further assistance other low-volatility sulfuric...
NO x is important for particle growth as it can participate in HOM formation and alter the volatility distribution.
Abstract. The formation of secondary particles in the atmosphere accounts for more than half global cloud condensation nuclei. Experiments at CERN CLOUD (Cosmics Leaving OUtdoor Droplets) chamber have underlined importance ions new particle formation, but quantifying their effect remains challenging. By using a novel instrument setup consisting two nanoparticle counters, one them equipped with an ion filter, we were able to further investigate ion-related mechanisms formation. In autumn...
Abstract. A new method for size-resolved chemical analysis of nucleation mode aerosol particles (size range from ∼10 to ∼30 nm) is presented. The Thermal Desorption Differential Mobility Analyzer (TD-DMA) uses an online, discontinuous principle. are charged, a specific size selected by differential mobility and they collected on filament electrostatic precipitation. Subsequently, the sampled mass evaporated in clean carrier gas analyzed ionization spectrometer. Gas-phase measurements...
Abstract. Inland ships are an important source of NOx, especially for cities along busy waterways. The amount and effect such emissions depend on the traffic density NOx emission rates individual vessels. Ship typically derived using in situ land measurements relation to factors (e.g. number pollutants emitted by per unit burnt fuel). In this study, a different approach is taken, obtained (in g s−1). Within EU LIFE project, CLean INland SHipping (CLINSH), new calculating from data...
Abstract. Inland ships are an important source of NOx, especially for cities along busy waterways. The amount and effect these emissions depends on the traffic density NOx emission rates individual vessels. Monitoring ship is usually carried out using in situ instruments land often relative factors, e.g. emitted pollutants per burnt fuel reported, but this study, g s-1 investigated. Within EU Life project Clean Shipping (CLINSH), a new approach to calculate from data measurement stations has...
Abstract. A new method for size resolved chemical analysis of nucleation mode aerosol particles (size range from ~ 10 to 30 nm) is presented. The Thermal Desorption Differential Mobility Analyzer (TD-DMA) uses an online, discontinuous principle. are charged, a specific selected by differential mobility and they collected on filament electrostatic precipitation. Subsequently, the sampled mass evaporated in clean carrier gas analyzed ionization spectrometer. Gas phase measurements performed...
Abstract. The formation of secondary particles in the atmosphere accounts for more than half global cloud condensation nuclei. Experiments at CERN CLOUD (Cosmics Leaving OUtdoor Droplets) chamber have underlined importance ions new particle formation, but quantifying their effect remains challenging. By using a novel instrument setup consisting two nano-particle counters, one them equipped with an ion filter, we were able to further investigate ion-related mechanisms formation. In autumn...
Abstract. The exact mechanisms for new particle formation (NPF) under different boundary layer conditions are not known yet. One important question is if amines and sulfuric acid lead to efficient NPF in the atmosphere. Furthermore, it clear what extent highly oxidized organic molecules (HOM) involved NPF. We conducted field measurements at a rural site central Germany proximity of three larger dairy farms investigate there connection between presence and/or ammonia due local emissions from...
Abstract. Highly-oxygenated organic molecules (HOMs) contribute substantially to the formation and growth of atmospheric aerosol particles, which affect air quality, human health Earth's climate. HOMs are formed by rapid, gas-phase autoxidation volatile compounds (VOCs) such as α-pinene, most abundant monoterpene in atmosphere. Due their abundance low volatility, can play an important role for new-particle (NPF) early aerosols, even without any further assistance other low-volatility...