A Caltech Library Service

Formation of Organic Aerosols from the Oxidation of Biogenic Hydrocarbons

Hoffmann, Thorsten and Odum, Jay R. and Bowman, Frank and Collins, Donald and Klockow, Dieter and Flagan, Richard C. and Seinfeld, John H. (1997) Formation of Organic Aerosols from the Oxidation of Biogenic Hydrocarbons. Journal of Atmospheric Chemistry, 26 (2). pp. 189-222. ISSN 0167-7764. doi:10.1023/A:1005734301837.

Full text is not posted in this repository. Consult Related URLs below.

Use this Persistent URL to link to this item:


Measurements of aerosol formation during thephotooxidation of α-pinene, β-pinene,d-3-carene, d-limonene, ocimene, linalool, terpinene-4-ol, andtrans-caryophyllene were conducted in an outdoor smog chamber. Daylight experiments in the presence of NOₓ and dark experiments with elevated ozone concentrations were performed. The evolution of the aerosol was simulated by the application of a gas/particle absorption model in connection with a chemical reaction mechanism. The fractional aerosol yield is shown to be a function of the organic aerosol mass concentration and temperature. Ozone and, for selected hydrocarbons, the NO₃ reaction of the compounds were found to represent efficient routes to the formation of condensable products. For initial hydrocarbon mixing ratios of about 100 ppb, the fractional aerosol yields from daylight runs have been estimated to be ∼5% for open-chain hydrocarbons, such as ocimene and linalool, 5–25% for monounsaturated cyclic monoterpenes, such as α-pinene, d-3-carene, or terpinene-4-ol, and ∼40% for a cyclic monoterpene with two double bonds like d-limonene. For the only sesquiterpene investigated, trans-caryophyllene, a fractional aerosol yield of close to 100% was observed. The majority of the compounds studied showed an even higher aerosol yield during dark experiments in the presence of ozone.

Item Type:Article
Related URLs:
URLURL TypeDescription ReadCube access
Hoffmann, Thorsten0000-0003-0939-271X
Flagan, Richard C.0000-0001-5690-770X
Seinfeld, John H.0000-0003-1344-4068
Additional Information:© 1997 Kluwer. (Received: 26 September 1996; in final form: 4 December 1996) This work was supported by U.S. Environmental Protection Agency Exploratory Environmental Research Center on Airborne Organics (R-819714-01-0), National Science Foundation grant ATM-9307603, the Coordinating Research Council (A-5-1), and the Chevron Corporation. T.H. thanks the German Research Association (DFG) for financial support and the BMBF (Bundesministerium für Bildung, Wissenschaft, Forschung und Technologie) for agreeing with the stay at Caltech during his participation in the research programme ‘cycles of trace constituents’.
Funding AgencyGrant Number
Environmental Protection Agency (EPA)R-819714-01-0
Coordinating Research CouncilA-5-1
Chevron CorporationUNSPECIFIED
Deutsche Forschungsgemeinschaft (DFG)UNSPECIFIED
Bundesministerium für Bildung, Wissenschaft, Forschung und Technologie (BMBF)UNSPECIFIED
Subject Keywords:biogenic hydrocarbons, ozone, nitrate radicals, aerosol formation, gas/particle partitioning
Issue or Number:2
Record Number:CaltechAUTHORS:20150805-115101473
Persistent URL:
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:59242
Deposited By: Irina Meininger
Deposited On:06 Aug 2015 20:19
Last Modified:12 Apr 2023 21:18

Repository Staff Only: item control page