Identification of Alkyl-9-Fluorenones in Diesel Exhaust Participate

Erickson, Mitchell D.; Newton, David L.; Pellizzari, Edo D.; Tomer, Kenneth B.; Dropkin, D.

doi:10.1093/chromsci/17.8.449

Cited by 38 publications

(5 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The presence of carbonyl-substituted polycyclic aromatic compounds in atmospheric particulate matter is well established. Significant amounts of polycyclic aromatic quiñones and ketones have been found in particulate matter from ambient air (10,(15)(16)(17)(18), automobile exhaust and diesel soot (11,(19)(20)(21)(22)(23)(24), wood smoke (25,26), tire and brake lining wear (12), road dust (12), natural gas emissions (13), muncipal incinerator emissions (27), cigarettes (28), biomass burning (29), and wood and peat-fired boilers (30).…”

Section: Selection Of Reactantsmentioning

confidence: 99%

Benz[a]anthracene photodegradation in the presence of known organic constituents of atmospheric aerosols

Jang¹,

McDow²

1995

Environ. Sci. Technol.

View full text Add to dashboard Cite

Section: Selection Of Reactantsmentioning

confidence: 99%

Benz[a]anthracene photodegradation in the presence of known organic constituents of atmospheric aerosols

Jang¹,

McDow²

1995

Environ. Sci. Technol.

View full text Add to dashboard Cite

“…The major techniques employed for the analysis of organic constituents in diesel exhaust include HPLC (19,37), TLC (13), MS/MS (18), and GC/MS (8,11,12,17,18,35,39). Computer controlled GC/MS (GC/MS/COM) is the most selective and sensitive analytical technique available for these analyses (19).…”

Section: Chemical and Biological Analysismentioning

confidence: 99%

“…ANALYSIS OF VEHICLE EMISSIONS PAH + NO + H20 -*no reaction (6) PAH + SO2 + H20no reaction (7) PAH + NO + H20no reaction (8) From these reactions, the rate expression for loss of PAH can be written as given by Eq. 9 (9) where the concentration of NO2 is proportional to the HNO3 concentration.…”

Section: Kp Pah + 02mentioning

confidence: 99%

Sampling of vehicle emissions for chemical analysis and biological testing.

Schuetzle¹

1983

Environ Health Perspect

415

140

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

“…9-Fluorenone was the most abundant single compound, but this compound is not mutagenic in the Salmonella assay. 17° Polycyclic ketones and quinones have also been identified in diesel exhaust by Chöudhury, 127 whereas Eriekson et al 171 identified alkyl-9-fluorenones. Schuetzle and co-workers' 43 found carboxaldehyde PAH derivatives to be the third most abundant species.…”

Section: Resultsmentioning

confidence: 99%