Details zur Publikation

Kategorie Textpublikation
Referenztyp Zeitschriften
DOI 10.3390/atmos14091347
Lizenz creative commons licence
Titel (primär) Comparison of seasonal and diurnal concentration profiles of BVOCs in coniferous and deciduous forests
Autor Borsdorf, H. ORCID logo ; Bentele, M.; Müller, M.; Rebmann, C.; Mayer, T.
Quelle Atmosphere
Erscheinungsjahr 2023
Department CHS; MET
Band/Volume 14
Heft 9
Seite von art. 1347
Sprache englisch
Topic T5 Future Landscapes
Keywords BVOCs; BVOC emissions; monoterpenes; isoprene; boreal forests; temporal variation
Abstract Ambient atmospheric concentrations of isoprene and monoterpenes were measured at two forest sites, one deciduous and one coniferous, over the year 2022. Both sites in a regional area were sampled monthly between April and September. The samples were taken using sorbent tubes and analyzed with thermal desorption–gas chromatography–mass spectrometry. The highest concentrations were determined in August at both sites. While isoprene is the most abundant compound at the deciduous forest with an average concentration of 5.59 µg m−3 in August, α-pinene and β-pinene dominate throughout the year at the coniferous forest with the highest concentrations also in August (3.44 µg m−3 and 1.51 µg m−3). Because other monoterpenes (camphene, sabinene, 3-carene, p-cymene and limonene) are also emitted in significant amounts, the total concentration measured in the coniferous forest is higher (7.96 µg m−3 in August) in comparison to the deciduous forest (6.08 µg m−3). Regarding the detected monoterpenes in the deciduous forest, sabinene is the dominant monoterpene in addition to α-pinene and is sometimes present in higher (July) or equal (August) concentrations. The seasonal and diurnal concentrations of all monoterpenes correlate very well with each other at both sites. An exception is sabinene with a diurnal concentration profile similar to isoprene.
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Borsdorf, H., Bentele, M., Müller, M., Rebmann, C., Mayer, T. (2023):
Comparison of seasonal and diurnal concentration profiles of BVOCs in coniferous and deciduous forests
Atmosphere 14 (9), art. 1347 10.3390/atmos14091347