Science Inventory

Large estragole fluxes from oil palms in Borneo

Citation:

Misztal, P. K., S. M. Owen, A. B. Guenther, R. Rasmussen, C. D. Geron, P. Harley, G. J. Phillips, A. Ryan, D. P. Edwards, C. N. Hewitt, E. Nemitz, J. Siong, M. R. Heal, AND J. N. Cape. Large estragole fluxes from oil palms in Borneo. Atmospheric Chemistry and Physics Discussions. Copernicus Gesellschaft mbH, Gottingen, Germany, 10(1):1517-1557, (2010).

Impact/Purpose:

post publication review of journal article

Description:

During two field campaigns (OP3 and ACES), which ran in Borneo in 2008, we measured large emissions of estragole in ambient air above oil palm canopies flower enclosures. However, we did not detect this compound at a nearby rainforest. Estragole is a known attractant of the African oil palm weevil, which pollinates oil palms. There has been recent interest in the biogenic emissions of estragole but it is normally not included in atmospheric models of biogenic emissions and atmospheric chemistry despite its relatively high potential for secondary organic aerosol formation from photooxidation and high reactivity with OH radical. We report the first direct canopy-scale measurements of estragole fluxes from tropical oil palms by the virtual disjunct eddy covariance technique and compare them with previously reported data for estragole emissions from Ponderosa pine. Estragole flux can be parameterised using a combination of a modified G06 algorithm for emission and a canopy resistance approach for deposition.

URLs/Downloads:

NRMRL RTP P 1053.PDF   (PDF,NA pp, 1070 KB,  about PDF)

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Record Details:

Record Type: DOCUMENT (JOURNAL/PEER REVIEWED JOURNAL)
Product Published Date: 01/20/2010
Record Last Revised: 04/08/2010
OMB Category: Other
Record ID: 219874

Organization:

U.S. ENVIRONMENTAL PROTECTION AGENCY

OFFICE OF RESEARCH AND DEVELOPMENT

NATIONAL RISK MANAGEMENT RESEARCH LABORATORY

AIR POLLUTION PREVENTION AND CONTROL DIVISION

ATMOSPHERIC PROTECTION BRANCH