Dynamics of volatile organic compounds in a western Mediterranean oak forest
Research output: Contribution to journal › Journal article › Research › peer-review
Standard
Dynamics of volatile organic compounds in a western Mediterranean oak forest. / Yáñez-serrano, A. M.; Bach, A.; Bartolomé-català, D.; Matthaios, Vasileios; Seco, R.; Llusia, Joan; Filella, I.; Peñuelas, J.
In: Atmospheric Environment, Vol. 257, 118447, 2021.Research output: Contribution to journal › Journal article › Research › peer-review
Harvard
APA
Vancouver
Author
Bibtex
}
RIS
TY - JOUR
T1 - Dynamics of volatile organic compounds in a western Mediterranean oak forest
AU - Yáñez-serrano, A. M.
AU - Bach, A.
AU - Bartolomé-català, D.
AU - Matthaios, Vasileios
AU - Seco, R.
AU - Llusia, Joan
AU - Filella, I.
AU - Peñuelas, J.
N1 - CENPERMOA[2021]
PY - 2021
Y1 - 2021
N2 - Volatile organic compounds (VOCs) are emitted from many sources and have important implications for plant fitness, ecological interactions, and atmospheric processes, including photochemistry and ozone formation. Forest ecosystems are strong sources of biogenic VOCs. We aimed to characterize forest below-canopy VOC mixing ratios, monitored by Proton Transfer Reaction Mass Spectrometry (PTR-MS), at Montseny Natural Park, a Mediterranean forest 50 km from the Barcelona urban area. Measurements were taken every 2 min during six months around the maximum emission period of summer. All VOCs had diel cycles with higher mixing ratios during the day, but different patterns over time. Monitored VOCs were grouped as biogenic, oxygenated, or aromatic compounds. Additionally, a positive matrix factorization analysis identified four emission profiles that were attributed to photochemical VOC production, biogenic emissions, mixed VOC emission sources, and traffic emissions. Even though the biogenic source was the strongest source profile at the site, we found a strong influence of anthropogenic air masses infiltrating the forest canopy and altering the biogenic air masses at the site.
AB - Volatile organic compounds (VOCs) are emitted from many sources and have important implications for plant fitness, ecological interactions, and atmospheric processes, including photochemistry and ozone formation. Forest ecosystems are strong sources of biogenic VOCs. We aimed to characterize forest below-canopy VOC mixing ratios, monitored by Proton Transfer Reaction Mass Spectrometry (PTR-MS), at Montseny Natural Park, a Mediterranean forest 50 km from the Barcelona urban area. Measurements were taken every 2 min during six months around the maximum emission period of summer. All VOCs had diel cycles with higher mixing ratios during the day, but different patterns over time. Monitored VOCs were grouped as biogenic, oxygenated, or aromatic compounds. Additionally, a positive matrix factorization analysis identified four emission profiles that were attributed to photochemical VOC production, biogenic emissions, mixed VOC emission sources, and traffic emissions. Even though the biogenic source was the strongest source profile at the site, we found a strong influence of anthropogenic air masses infiltrating the forest canopy and altering the biogenic air masses at the site.
KW - Biogenic and anthropogenic VOC interaction
KW - Montseny Natural Park
KW - Positive matrix factorization
KW - Volatile organic compounds
U2 - 10.1016/j.atmosenv.2021.118447
DO - 10.1016/j.atmosenv.2021.118447
M3 - Journal article
VL - 257
JO - Atmospheric Environment
JF - Atmospheric Environment
SN - 1352-2310
M1 - 118447
ER -
ID: 261441235