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Isoprene and terpenoid emissions from Abies alba: Identification and emission rates under ambient conditions

dc.contributor.authorPokorska, O.
dc.contributor.authorDewulf, J.
dc.contributor.authorAmelynck, C.
dc.contributor.authorSchoon, N.
dc.contributor.authorSimpraga, M.
dc.contributor.authorSteppe, K.
dc.contributor.authorVan Langenhove, H.
dc.date2012
dc.date.accessioned2016-03-29T10:07:36Z
dc.date.available2016-03-29T10:07:36Z
dc.identifier.urihttps://orfeo.belnet.be/handle/internal/2994
dc.descriptionIn this study, biogenic volatile organic compound (BVOC) emissions from Abies alba were studied under ambient conditions in Flanders (Belgium). Emission patterns and rates were investigated from April till November 2010 by using the dynamic branch enclosure technique. The present work revealed that A. alba is an isoprene emitter, with isoprene accounting for 86–93% of total BVOC emissions, except during budburst (67%) in May. The emission spectrum of A. alba consisted of 27 compounds. Next to isoprene, the main emitted compounds were α-pinene, β-pinene, camphene and limonene. BVOC emissions showed a peak in June after development of the young needles, followed by a constant emission during summer months and September and a decrease in October. In all the samples isoprene was the most abundant compound with standardized emission rates between 27 μg g(dw)−1 h−1 in June and 4.6 μg g(dw)−1 h−1 in October, while the total standardized terpenoid emission rates ranged from 2.85 μg g(dw)−1 h−1 in June to 0.26 μg g(dw)−1 h−1 in October. The obtained average β coefficients according to the temperature dependent algorithm of Guenther et al. (1993) during April–June, July, August and September–October were as follows: for terpenoids 0.12 ± 0.03, 0.11 ± 0.05, 0.12 ± 0.04, 0.24 ± 0.01 K−1 and sesquiterpenes (SQTs) 0.09 ± 0.02, 0.11 ± 0.01, 0.10 ± 0.05, 0 K−1, respectively. Overall, isoprene detected in this study was never quantified in previous studies on A. alba and this finding could have a significant impact on the regional BVOCs budget. Therefore, the result of this study is very important for modeling and local air quality.
dc.languageeng
dc.titleIsoprene and terpenoid emissions from Abies alba: Identification and emission rates under ambient conditions
dc.typeArticle
dc.subject.frascatiEarth and related Environmental sciences
dc.audienceScientific
dc.subject.freeAbies alba
dc.subject.freeBelgium
dc.subject.freeBiogenic volatile organic compounds
dc.subject.freeEmission rates
dc.subject.freeIsoprene
dc.subject.freeSeasonal variation
dc.subject.freeAir quality
dc.subject.freeAtmospheric composition
dc.subject.freeEmission spectroscopy
dc.subject.freeOlefins
dc.subject.freeVolatile organic compounds
dc.subject.freeLipids
dc.subject.freebeta pinene
dc.subject.freecamphene
dc.subject.freeisoprene
dc.subject.freelimonene
dc.subject.freepinene
dc.subject.freesesquiterpene
dc.subject.freeterpenoid
dc.subject.freevolatile organic compound
dc.subject.freeair quality
dc.subject.freeatmospheric pollution
dc.subject.freebiogenic emission
dc.subject.freeemission inventory
dc.subject.freeenclosure experiment
dc.subject.freeevergreen tree
dc.subject.freeidentification method
dc.subject.freeisoprene
dc.subject.freeseasonal variation
dc.subject.freespatiotemporal analysis
dc.subject.freeterpene
dc.subject.freevolatile organic compound
dc.subject.freeAbies
dc.subject.freeair quality
dc.subject.freealgorithm
dc.subject.freeambient air
dc.subject.freearticle
dc.subject.freeatmospheric dispersion
dc.subject.freeBelgium
dc.subject.freenonhuman
dc.subject.freepriority journal
dc.subject.freequantitative analysis
dc.subject.freesummer
dc.subject.freetemperature dependence
dc.subject.freeBelgium
dc.subject.freeFlanders
dc.subject.freeAbies alba
dc.source.titleAtmospheric Environment
dc.source.volume59
dc.source.page501-508
Orfeo.peerreviewedYes
dc.identifier.doi10.1016/j.atmosenv.2012.04.061
dc.identifier.scopus2-s2.0-84863482533


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