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The organic composition of diesel particulate matter, diesel fuel and engine oil of a non-road diesel generator.

Authors
Liang-FY; Lu-MM; Keener-TC; Liu-ZF; Khang-SJ
Source
J Environ Monit 2005 Oct; 7(10):983-988
NIOSHTIC No.
20032199
Abstract
Diesel-powered equipment is known to emit significant quantities of fine particulate matter to the atmosphere. Numerous organic compounds can be adsorbed onto the surfaces of these inhalable particles, among which polycyclic aromatic hydrocarbons (PAHs) are considered potential occupational carcinogens. Guidelines have been established by various agencies regarding diesel emissions and various control technologies are under development. The purpose of this study is to identify, quantify and compare the organic compounds in diesel particulate matter (DPM) with the diesel fuel and engine oil used in a non-road diesel generator. Approximately 90 organic compounds were quantified (with molecular weight ranging from 120 to 350), which include alkanes, PAHs, alkylated PAHs, alkylbenzenes and alkanoic acids. The low sulfur diesel fuel contains 61% alkanes and 7.1% of PAHs. The identifiable portion of the engine oil contains mainly the alkanoic and benzoic acids. The composition of DPM suggests that they may be originated from unburned diesel fuel, engine oil evaporation and combustion generated products. Compared with diesel fuel, DPM contains fewer fractions of alkanes and more PAH compounds, with the shift toward higher molecular weight ones. The enrichment of compounds with higher molecular weight in DPM may be combustion related (pyrogenic).
Keywords
Air-quality; Air-quality-control; Air-quality-measurement; Air-quality-monitoring; Air-sampling; Air-sampling-equipment; Air-sampling-techniques; Filter-materials; Filters; Gas-filters; Gas-sampling; Diesel-emissions; Particulate-sampling-methods; Particulates; Volumetric-analysis
Contact
MM LU, Univ Cincinnati, Dept Civil & Environm Engn, Cincinnati, OH 45221
CODEN
JEMOFW
Publication Date
20051001
Document Type
Journal Article
Email Address
lumg@ucmail.uc.edu
Funding Amount
509978
Funding Type
Grant
Fiscal Year
2006
NTIS Accession No.
NTIS Price
Identifying No.
Grant-Number-R01-OH-007679
Issue of Publication
10
ISSN
1464-0325
Priority Area
Personal Protective Technology
Source Name
Journal of Environmental Monitoring
State
OH
Performing Organization
University of Cincinnati
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