Formation and gas/particle partitioning of monoterpenes photo-oxidation products over forests
Abstract
By using adequate sampling techniques we studied the chemical pathways, the gas-to-particle partition and the conversion processes leading to the formation of organic aerosols via the photo-oxidation of biogenic hydrocarbons in the atmosphere over a conifer forest. Photo-oxidation products of monoterpenes such as pinonic acid, nor-pinonic acid, pinic acid, pinonaldehyde and nopinone were detected in the gas and particulate phases of all forest aerosol samples. Considering the diurnal concentration pattern of the photo-oxidation products of α- and β-pinene and Aitken nuclei concentration measured during the same periods, we observed that the acidic photo-oxidation products of monoterpenes play a more important role in the formation of new particles than the corresponding carbonyl compounds.
Publication Title
Geophysical Research Letters
Recommended Citation
Kavouras, I., Mihalopoulos, N., & Stephanou, E. (1999). Formation and gas/particle partitioning of monoterpenes photo-oxidation products over forests. Geophysical Research Letters, 26 (1), 55-58. https://doi.org/10.1029/1998GL900251
