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Title: Evaluation of factors that affect diesel exhaust toxicity. Final report

Technical Report ·
OSTI ID:299932

The scope of this project was to obtain a preliminary assessment of the potential impact of the fuel formulation on the speciation and toxic components of diesel exhaust. The test bed was a Cummins L10 engine operating over the heavy-duty transient test cycle using three diesel fuels: a pre-1993 diesel fuel, a low aromatic diesel fuel, and an alternative formulation diesel fuel. The sampling/analysis plan included: determination of the criteria pollutant emission rates (THC, CO, NOx, and PM); determination of PM(10) and PM(2.5) emission rates; collection and analysis of particulate samples for elemental, inorganic ion and elemental/organic carbon analyses; collection of bas samples for VOC speciation analyses; collection of 2,4-dinitrophenylhydrazine (DNPH) cartridges for determination of oxygenates; collection of nitrosomorpholine with Thermosorb N cartridges; collection of semi-volatiles on PF/XAD and particulate samples for PAH, nitro-PAH, and mutagenicity studies; and collection and analysis of dioxins for the pre-1993 and alternative formulation diesel fuels.

Research Organization:
California Univ., Riverside, CA (United States); California Univ., Dept. of Environmental Toxicology, Davis, CA (United States); California State Air Resources Board, Research Div., Sacramento, CA (United States); Environmental Protection Agency, Washington, DC (United States)
Sponsoring Organization:
California State Air Resources Board, Sacramento, CA (United States)
OSTI ID:
299932
Report Number(s):
PB-99-114977/XAB; CNN: Contract CARB-94-312; TRN: 83650720
Resource Relation:
Other Information: DN: See also PB98-124308.; PBD: Jul 1998
Country of Publication:
United States
Language:
English