Performance of various ventilation filtration technologies on characteristic traffic emission aerosol in ultrafine particle size range

S. Saari*, P. Karjalainen, H. Kuuluvainen, T. Rönkkö, Tampere University of Technology; T. Kalliohaka, A. Taipale, VTT Technical Research Centre of Finland, Finland

In urban environment, the combustion related particle emissions, such as traffic and biomass burning, have been observed to be the major fine particle sources. Particle number size distribution measurements have indicated that in urban atmosphere, especially in city centres, the particle number is dominated by ultrafine nanoparticles (< 100 nm) emitted by traffic. In polluted areas, the outdoor particle concentration affects significantly the indoor air particle concentrations of buildings. There is a lack of information on how the building ventilation and filtration systems or room air cleaners affect the ultrafine particle concentrations, especially between different filtration technologies such as electrostatic precipitation and glass fibre filters.

In this study, we demonstrate the test aerosol generation system which mimics the characteristics of diesel engine exhaust aerosol that dominates in urban air...

Session: G6 - Air Filtration II
Day: 11 October 2016
Time: 16:45 - 18:00 h