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Biogenic volatile organic compounds emissions of heated mediterranean vegetal species

Journal article published in 2014 by K. Chetehouna, L. Courty, L. Lemée, F. Bey, J. P. Garo
This paper is available in a repository.
This paper is available in a repository.

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Preprint: policy unknown
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Postprint: policy unknown
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Published version: policy unknown

Abstract

The effect of temperature on Biogenic Volatile Organic Compounds (BVOCs) emissions from five vegetal species was studied between 70 and 180 °C, range during which vegetation produces high amount of these gases. Emissions were investigated at small and middle scales. For a given species, if emitted BVOCs content does not change, the relative percentage of each volatile compound varies according to temperature. High amount of terpenoid compounds were emitted, except for Cistus albidus, and emissions are increasing with temperature. The main identified compounds are thymol, l-fenchone, -pinene, 3-hexen-1-ol and limonene for respectively Thymus vulgaris, Lavandula stœchas, Rosmarinus officinalis, Cistus albidus and Pinus pinea. The results obtained will permit to develop a database of BVOCs emissions at elevated temperature and to include their combustion in physical forest fires models.