Acetone and monoterpene emissions from the boreal forest in northern Europe

Janson, Robert W; Serves, Claes de

doi:10.1016/s1352-2310(01)00160-1

Cited by 92 publications

(103 citation statements)

References 23 publications

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“…Trees can be an important source of acetone in Hyytiälä. Janson and Serves (2001) found high concentrations of acetone in branch emission measurements of Scots pine and Norway spruce conducted in Hyytiälä in March/April in 1999. Oxidation of monoterpenes is an important secondary source of acetone.…”

Section: Sources Of Carbonyl Compoundsmentioning

confidence: 95%

“…High acetone yields were measured in reactions of monoterpenes with OH radicals and O 3 (Reissell et al, 1999). In spite of the cold season, emissions of monoterpenes have been detected in enclosure measurement of Scots pine and Norway spruce during March and April (Hakola et al, 2003, Janson andServes, 2001). Due to the long lifetime, acetone can be transported long distances.…”

Section: Sources Of Carbonyl Compoundsmentioning

confidence: 99%

“…These sources are not well known, but anthropogenic sources include at least car exhaust emissions, wood combustion and solvent evaporation (Friedrich and Obermeier, 1999). Some coniferous trees (Pinus sylvestris and Picea abies) have been shown to emit significant amounts of acetone and acetaldehyde (Janson et al, 2001) and agricultural species (Arey et al, 1991;Köning et al, 1995) as well as stressed plants (Hakola et al, 2001) have been found to emit C 6 carbonyl compounds. Also other carbonyl compounds can be emitted from plants, but these emission rates are poorly known (Fall, 1999).…”

Section: Introductionmentioning

confidence: 99%

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Carbonyl compounds in boreal coniferous forest air in Hyytiälä, Southern Finland

et al. 2004

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Abstract.A variety of C 1 -C 12 carbonyl compounds were measured in the air of a boreal coniferous forest located in Hyytiälä, Southern Finland. 24-hour samples were collected during March and April in 2003 using DNPH (2,4-dinitrophenyl hydrazine) coated C 18 -cartridges and analyzed by liquid chromatography-mass spectrometry (LC-MS).Altogether 22 carbonyl compounds were quantified. The most abundant carbonyls were acetone (24-hour average 1340 ng/m 3 ), formaldehyde (480 ng/m 3 ) and acetaldehyde (360 ng/m 3 ). Concentrations of monoterpene reaction products nopinone (9 ng/m 3 ) and limona ketone (5 ng/m 3 ) were low compared to the most abundant low molecular weight carbonyls. Trajectory analysis showed that highest concentrations of carbonyls were measured in the air masses coming from the East and the lowest in the air masses cycled long time over Scandinavia. The total concentration of carbonyl compounds in Hyytiälä in March/April 2003 was much higher than the concentration of aromatic hydrocarbons and monoterpenes in April 2002.Scaling the concentrations against reactivity with the OHradical showed, that in spite of relatively low ambient concentrations higher molecular weight aldehydes contribute significantly to the total OH-reactive mass of carbonyls. The impact of carbonyl compounds on OH-radical chemistry is important. Contribution of carbonyls as an OH sink is comparable to that of NO 2 and higher than monoterpenes and aromatic hydrocarbons.Lifetimes of the measured carbonyls with respect to reactions with OH radicals, ozone (O 3 ), and nitrate (NO 3 ) radicals as well as photolysis were estimated. The main sink reactions for most of the carbonyl compounds in Hyytiälä in springtime are expected to be reactions with the OH radical and photolysis. For 6-methyl-5-hepten-2-one and limona ketone also reactions with ozone are important. The sources of Correspondence to: H. Hellén (heidi.hellen@fmi.fi) carbonyl compounds are presently highly uncertain. Based on the comparisons with urban concentrations the direct anthropogenic emissions are not as important as secondary biogenic and anthropogenic sources or primary biogenic sources in Hyytiälä.

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Section: Sources Of Carbonyl Compoundsmentioning

confidence: 95%

Section: Sources Of Carbonyl Compoundsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Carbonyl compounds in boreal coniferous forest air in Hyytiälä, Southern Finland

et al. 2004

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“…Our method blanks showed no acetone signal, and confirmed that the acetone is, in fact, emitted from the pine twig samples. Although acetone is difficult to detect using conventional and destructive extraction methods [24], it has been shown to be present in VOC emissions from various trees [50,51].…”

Section: Emissions From the Pine Twigsmentioning

confidence: 99%

A preconcentrator coupled to a GC/FTMS: Advantages of self-chemical ionization, mass measurement accuracy, and high mass resolving power for GC applications

Solouki

Szulejko

Bennett

et al. 2004

J. Am. Soc. Mass Spectrom.

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“…Experiments conducted on various plant species and ecosystems have indicated large emissions of such nonterpenoid hydrocarbons as methanol and acetone Janson and de Serves, 2001;Warneke et al, 2002;Spirig et al, 2005). However, very little experimental data exist on the emissions of non-terpenoid VOCs from most ecosystems.…”

Section: Introductionmentioning

confidence: 99%

Hydrocarbon fluxes above a Scots pine forest canopy: measurements and modeling

et al. 2007

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Abstract.We measured the fluxes of several hydrocarbon species above a Scots pine (Pinus sylvestris) stand using disjunct eddy covariance technique with proton transfer reaction -mass spectrometry. The measurements were conducted during four days in July at SMEAR II research station in Hyytiälä, Finland. Compounds which showed significant emission fluxes were methanol, acetaldehyde, acetone, and monoterpenes. A stochastic Lagrangian transport model with simple chemical degradation was applied to assess the sensitivity of the above canopy fluxes to chemistry. According to the model, the chemical degradation had a minor effect on the fluxes measured in this study but may have a major effect on the vertical flux profiles of more reactive compounds, such as sesquiterpenes. The monoterpene fluxes derived using M81 and M137 had a systematic difference with the latter one being higher. These fluxes followed the traditional exponential temperature dependent emission algorithm but were considerably higher than the fluxes measured before at the same site. The normalized monoterpene emission potentials at 30 • C, obtained using the temperature dependence coefficient of 0.09 • C −1 , were 2.0 µg g −1 dw h −1 and 2.5 µg g −1 dw h −1 , for fluxes derived using M81 and M137.

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Acetone and monoterpene emissions from the boreal forest in northern Europe

Cited by 92 publications

References 23 publications

Carbonyl compounds in boreal coniferous forest air in Hyytiälä, Southern Finland

Carbonyl compounds in boreal coniferous forest air in Hyytiälä, Southern Finland

A preconcentrator coupled to a GC/FTMS: Advantages of self-chemical ionization, mass measurement accuracy, and high mass resolving power for GC applications

Hydrocarbon fluxes above a Scots pine forest canopy: measurements and modeling

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