The impact of sulphur content of diesel fuel on ultrafine particle formation

Abstract

Early this year the Australian Department of Environment and Heritage
commissioned a desktop literature review with a focus on ultrafine particles
including analysis of health impacts of the particles as well as the impact of sulphur
content of diesel fuel on ultrafine particle emission. This paper summarizes the
findings of the report on the link between the sulphur content of diesel fuels and the
number of ultrafine particles in diesel emissions. The literature search on this topic
resulted in over 150 publications. The majority of these publications, although
investigating different aspects of the influence of fuel sulphur level on diesel vehicle
emissions, were not directly concerned with ultrafine particle emissions. A specific
focus of the paper is on: ----- ----- summary of state of knowledge established by the review, and ----- ----- summary of recommendations on the research priorities for Australia to address
the information gaps for this issue, and on the appropriate management responses.