Unregulated Emissions from a PROCO Engine Powered Vehicle

McKee, Douglas E.; Ferris, F. C.; Goeboro, R. E.

doi:10.4271/780592

Cited by 11 publications

(3 citation statements)

References 6 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Diesel vehicle exhaust particulate samples were collected on a chassis dynamometer/dilution tube facility (26). The vehicles, a 1979 2.3-L Opel and a 1980 2.3-L Peugeot, were run, using no.…”

Section: Methodsmentioning

confidence: 99%

Comparison of solvent extraction and thermal-optical carbon analysis methods: application to diesel vehicle exhaust aerosol

Japar¹,

Szkarlat²,

Gorse³

et al. 1984

Environ. Sci. Technol.

View full text Add to dashboard Cite

Section: Methodsmentioning

confidence: 99%

Comparison of solvent extraction and thermal-optical carbon analysis methods: application to diesel vehicle exhaust aerosol

Japar¹,

Szkarlat²,

Gorse³

et al. 1984

Environ. Sci. Technol.

View full text Add to dashboard Cite

“…Dilution-tube sampling of vehicle emissions is widely used in the .S. (23)(24)(25)(26)(27). The technique is designed to simulate as closely as possible the dilution of vehicle exhaust as it would occur during the first minute or two in ambient air from vehicles on the road.…”

Section: Sampling Of Vehicle Exhaustmentioning

confidence: 99%

Sampling of vehicle emissions for chemical analysis and biological testing.

Schuetzle¹

1983

Environ Health Perspect

415

139

View full text Add to dashboard Cite

Representative dilution tube sampling techniques for particulate and gas phase vehicle emissions are described using Teflon filter media and XAD-2 resin. More than 90% of the total gas (C8-C18) and particulate direct acting Ames assay mutagenicity (TA 98) was found in the particulate phase. The gas and particulate phase material was fractionated by HPLC into nonpolar, moderately polar and highly polar chemical fractions. The moderately polar chemical fraction of the particulates contained more than 50% of the direct acting Ames assay mutagenicity for the total extract. The concentration of oxygenated polynuclear aromatic hydrocarbons (oxy-PAH) and nitrated PAH (nitro-PAH) identified in the moderately polar particulate fractions are given. Nitro-PAH account for most of the direct-acting (TA 98) Ames assay mutagenicity in these moderately polar fractions. Reactions and kinetic expressions for chemical conversion of PAH are presented. Chemical conversion of PAH to nitro-PAH during dilution tube sampling of particulates on Teflon filters and gases on XAD-2 resin is a minor problem (representing 10-20%, on the average, of the 1-nitropyrene found in extracts) at short (46 min) sampling times, at low sampling temperatures (42 degrees C), and in diluted exhaust containing 3 ppm NO2. Particulate emissions collected from dilution tubes on filter media appear to be representative of what is emitted in the environment as based upon a comparison of highway and laboratory studies.

show abstract

“…2 diesel fuel. The base stock, which contained 0.0087 wt % S, was doped with di-tert-butyl disulfide to two additional fuel sulfur levels: 0.110 and 0.190 wt % S. Each fuel sulfur level was tested with and without the additive manufacturer's recommended level of 0.25 vol % of Lubrizol 556 (which, by fuel analysis, gave 0.058 wt % Ba in the fuel) to give the following six fuel sulfur/barium additive All measurements were made using the chassis dynamometer/dilution tube system previously described (11,12). The dilution tube flow rate was approximately 17 m3/min (600 cfm) for all experiments.…”

Section: Experimental Methodsmentioning

confidence: 99%