Sources of Fine Organic Aerosol. 8. Boilers Burning No. 2 Distillate Fuel Oil
Abstract
Fine organic particulate matter emitted from an industrial-scale boiler burning no. 2 distillate fuel oil has been characterized on a molecular basis using GC/MS techniques. Most of the identified compound mass consists of n-alkanoic acids (42.0−51.5%), aromatic acids (5.8−22.6%), and n-alkanes (6.7−25.0%). Polycyclic aromatic hydrocarbons (PAH) and oxygenated PAH (oxy-PAH) together comprise 3.1−8.6% of the identifiable mass and together with chlorinated compounds (5.8−16.4%) show the largest variations in emission rates between the two experiments reported here. An increase in chlorinated compound emissions between tests is accompanied by a similar increase in elemental carbon (i.e., soot) and PAH emissions, which may follow the results of laboratory experiments that suggest that the presence of chlorinated compounds can enhance both soot and PAH formation. Differences between the hopanes distribution in the boiler exhaust versus that found in both vehicle exhaust and in the southern California atmosphere suggest that the oil-fired boiler exhaust is at most a minor contributor to the atmospheric aerosol, which is consistent with inferences drawn from local emission inventories.
Additional Information
© 1997 American Chemical Society. Received for review November 13, 1996. Revised manuscript received June 2, 1997. Accepted June 16, 1997. Publication Date (Web): September 30, 1997. We thank Ed Ruth for his assistance with the mass spectrometry analysis. This research was supported by the California Air Resources Board under Agreement A932-127. Portions of the work benefited from research supported by the U.S. Environmental Protection Agency under Agreement R-813277-01-0 and by the South Coast Air Quality Management District. Partial funding also was provided by the U.S. Department of Energy under Contract DE-AC02-76CH00016. The statements and conclusions in the report are those of the contractor and not necessarily those of the California Air Resources Board. The mention of commercial products, their source, or their use in connection with material reported herein is not to be construed as actual or implied endorsement of such products. This manuscript has not been subject to the EPA's peer and policy review, and hence does not necessarily reflect the views of the EPA.Additional details
- Eprint ID
- 67923
- DOI
- 10.1021/es9609563
- Resolver ID
- CaltechAUTHORS:20160614-135826362
- A932-127
- California Air Resources Board
- R-813277-01-0
- Environmental Protection Agency (EPA)
- South Coast Air Quality Management District (SCAQMD)
- DE-AC02-76CH00016
- Department of Energy (DOE)
- Created
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2016-06-14Created from EPrint's datestamp field
- Updated
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2021-11-11Created from EPrint's last_modified field