Factors influencing mass collected during 2007 diesel PM filter sampling

Jacob Swanson, David Kittelson

Research output: Contribution to journalConference articlepeer-review

2 Scopus citations


EPA's 2007 Diesel particulate matter (DPM) standard requires a large reduction in total mass emissions. In practice, this amounts to a fractional reduction in elemental carbon emissions. The reduction is balanced by a fractional increase in the semi-volatile component, which is difficult to sample and quantify accurately at low concentrations using filter-based methods. In this work, we show how five imprecisely defined filter-sampling parameters influence the mass collected on a filter. These parameters are: dilution air quality, dilution conditions (dilution ratio and dilution air temperature), particle size classification, filter media and artifacts, and face velocity. Each factor has the potential to change the mass collected by a minimum of 5% of the standard, suggesting there is room for improvement.

Original languageEnglish (US)
JournalSAE Technical Papers
StatePublished - Jan 1 2009
EventSAE World Congress and Exhibition - Detroit, MI, United States
Duration: Apr 20 2009Apr 20 2009


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