Determination of Single Particle Mass Spectral Signatures from Heavy-Duty Diesel Vehicle Emissions for PM sub(2.5) Source Apportionment

Single particle mass spectral signatures from heavy-duty diesel vehicle emissions for PM sub(2.5) source apportionment were studied. The size and chemical composition of individual diesel exhaust particles were measured in order to determine unique mass spectral signatures that could be used to iden...

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Bibliographic Details
Published in:Atmospheric environment (1994) 2007-06, Vol.41 (18), p.3841-3841
Main Authors: Shields, Laura G, Suess, David T, Prather, Kimberly A
Format: Article
Language:English
Online Access:Get full text
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Summary:Single particle mass spectral signatures from heavy-duty diesel vehicle emissions for PM sub(2.5) source apportionment were studied. The size and chemical composition of individual diesel exhaust particles were measured in order to determine unique mass spectral signatures that could be used to identify particle sources in future ambient studies. The exhaust emissions from seven in-use heavy-duty diesel vehicles (HDDVs) operating on a chassis dynamometer were passed through a dilution tunnel and residue chamber and analyzed in real time by aerosol time-of-flight mass spectrometry (ATOFMS). The dominant chemical types originated from unburned lubricant oil, and the contributions of the various types varied with particle size and driving conditions.
ISSN:1352-2310