Sources of fine organic aerosol. 2. Noncatalyst and catalyst-equipped automobiles and heavy-duty diesel trucks

Journal Article · Thu Apr 01 00:00:00 EST 1993 · Environmental Science and Technology; (United States)

DOI:https://doi.org/10.1021/es00041a007· OSTI ID:6103972

Rogge, W F; Hildemann, L M; Mazurek, M A; Cass, G R ^[1]; Simoneit, B R.T. ^[2]

---

1. California Inst. of Technology, Pasadena (United States)
2. Oregon State Univ., Corvallis (United States)

Gasoline- and diesel-powered vehicles are known to contribute appreciable amounts of inhalable fine particulate matter to the atmosphere in urban areas. Internal combustion engines burning gasoline and diesel fuel contribute more than 21% of the primary fine particulate organic carbon emitted to the Los Angeles atmosphere. In the present study, particulate (d[sub p] [le] 2 [mu]m) exhaust emissions from six noncatalyst automobiles, seven catalyst-equipped automobiles, and two heavy-duty diesel trucks are examined by gas chromatography/mass spectrometry. The purposes of this study are as follows: (a) to search for conservative marker compounds suitable for tracing the presence of vehicular particulate exhaust emissions in the urban atmosphere, (b) to compile quantitative source profiles, and (c) to study the contributions of fine organic particulate vehicular exhaust to the Los Angeles atmosphere. More than 100 organic compounds are quantified, including n-alkanes, n-alkanoic acids, benzoic acids, benzaldehydes, PAH, oxy-PAH, steranes, pentacyclic triterpanes, azanaphthalenes, and others. Although fossil fuel markers such as steranes and pentacyclic triterpanes can be emitted from other sources, it can be shown that their ambient concentrations measured in the Los Angeles atmosphere are attributable mainly to vehicular exhaust emissions. 102 refs., 9 figs., 6 tabs.

• DOE Contract Number: AC02-76CH00016
• OSTI ID: 6103972
• Journal Information: Environmental Science and Technology; (United States), Vol. 27:4; ISSN 0013-936X
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
54 ENVIRONMENTAL SCIENCES
37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
LOS ANGELES
AIR POLLUTION MONITORING
ORGANIC COMPOUNDS
GAS CHROMATOGRAPHY
MASS SPECTROSCOPY
AEROSOLS
AUTOMOBILES
CATALYTIC CONVERTERS
DIESEL ENGINES
EXPERIMENTAL DATA
TRUCKS
CALIFORNIA
CHROMATOGRAPHY
COLLOIDS
DATA
DEVELOPED COUNTRIES
DISPERSIONS
ENGINES
EQUIPMENT
HEAT ENGINES
INFORMATION
INTERNAL COMBUSTION ENGINES
MONITORING
NORTH AMERICA
NUMERICAL DATA
POLLUTION CONTROL EQUIPMENT
SEPARATION PROCESSES
SOLS
SPECTROSCOPY
URBAN AREAS
USA
VEHICLES
020900* - Petroleum- Environmental Aspects
540120 - Environment
Atmospheric- Chemicals Monitoring & Transport- (1990-)
400102 - Chemical & Spectral Procedures