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Traffic emission of nano particles

The overall aim of the proposed project is to gain increased understanding of traffic-related particle emissions, with specific focus on size distributions of nanoparticles and their volatility, and the potential to form SOA (secondary organic aerosol) from traffic-related gaseous compounds.

determining the partitioning between the gas phase and the condensed phaseThe objective is to understand the impact of e.g. vehicle technology, type of fuel and driving pattern on particle emissions, both regarding number and size. Both light-and heavy duty vehicles will be studied. Measurement campaigns will be performed on individual vehicles and for the average fleet, doing kerbside measurements. Number particle emission factors will be calculated by simultaneously, with a high time resolution, measuring the number of particles emitted and their size distribution and a trace gas, such as CO2 or NOx. Additionally, traffic emissions and its potential to form secondary particles will be studied by analysing the volatility of the particles, determining the partitioning between the gas phase and the condensed phase. The emissions will also be heavily oxidised in order to study the potential to form SOA (secondary organic aerosol) on longer time scales (hours). The outcome of the project can lead to better understanding of the potential impacts of particles on the environment and climate as well as on health and used as a basis for setting future emission and air quality standards based on particle number.

The project is part of the graduate school Environment and Health

Staff within this project

Page Manager: Katleen Burm|Last update: 4/14/2014

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Utskriftsdatum: 2019-08-24