Aldehyde emissions from wood-burning fireplaces

Lipari, Frank; Dasch, Jean Muhlbaier; Scruggs, William F.

doi:10.1021/es00123a007

Cited by 109 publications

(68 citation statements)

References 4 publications

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“…Spichtinger et al (2001) have found strong enhancements of NO 2 above a fire burning in Canada in 1998, but it is important to clarify whether boreal forest fires can also create NO 2 anomalies on a seasonal basis. The tropospheric NO 2 columns are supplemented by tropospheric HCHO columns, because HCHO is a primary emission product from biomass burning (Carlier et al, 1986;Lipari et al, 1984). Maps of tropospheric NO 2 columns and tropospheric HCHO columns were derived from spectroscopic data from the GOME instrument on board the ERS-2 satellite, which was launched into a polar sun-synchronous orbit in April 1995.…”

Section: Methodsmentioning

confidence: 99%

Boreal forest fires in 1997 and 1998: a seasonal comparison using transport model simulations and measurement data

et al. 2004

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Section: Methodsmentioning

confidence: 99%

Boreal forest fires in 1997 and 1998: a seasonal comparison using transport model simulations and measurement data

et al. 2004

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“…Furthermore, the shorter atmospheric lifetime of acetaldehyde, which is removed by oxidation and photolysis (both likely to be strongly correlated with temperature), may also contribute to the less prominent temperature dependency. (Lipari et al, 1984; leaf litter which from * * * * * known known from plants: Hurst et al, 1994). has been * * * plants sources sources subjected to high daytime temperatures -Plant defence.…”

Section: Voc Mixing Ratiosmentioning

confidence: 99%

Mixing ratios and eddy covariance flux measurements of volatile organic compounds from an urban canopy (Manchester, UK)

et al. 2009

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Abstract. Mixing ratios and fluxes of six selected volatile organic compounds (VOCs) were measured above the city of Manchester (UK) during the summer of 2006. A proton transfer reaction-mass spectrometer was used for the measurement of mixing ratios, and fluxes were calculated from these using both the disjunct and the virtual disjunct eddy covariance techniques. The two flux systems, which operated in alternate half hours, showed good agreement, with R 2 values ranging between 0.74 and 0.9 for the individual analytes. On average, fluxes measured in the disjunct mode were approximately 20% lower than those measured in the virtual mode. This difference is due to both the dampening of the VOC signal by the disjunct flux sampler and carry over from one sample to the next. Correcting for these effects reduced the difference to less than 7%. Observed fluxes are thought to be largely controlled by anthropogenic sources, with vehicle emissions the major contributor. However, both evaporative and biogenic emissions may account for some of the VOCs present. Concentrations and fluxes of the oxygenated compounds were highest on average, ranging between 0.15 to 1 mg m −2 h −1 ; the fluxes of aromatic compounds were lower, between 0.12 to 0.28 mg m −2 h −1 . The observed fluxes were up-scaled to give city wide emission estimates for each compound and the results compared to estimates made by the National Atmospheric Emission Inventory (NAEI) for the same flux footprint. Fluxes of toluene and benzene compared most closely differing by approximately 50%, while in contrast the oxygenated fluxes were found to be between 3.6-6.3 times larger than the annual average predicted by the NAEI.

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“…They are directly discharged into the atmosphere from incomplete combustion of biomass and fossil fuel (Lipari et al, 1984), as well as formed as the major photochemical reaction products of volatile organic compounds (VOCs) in the atmosphere (Grosjean et al, 1996;Possanzini et al, 2002;Pang and Mu, 2006). Carbonyls are the pivotal source of radicals in the atmospheric chemistry relating to ozone production (Lary and Shallcross, 2000).…”

Section: Introductionmentioning

confidence: 99%

Ambient levels of atmospheric carbonyls in Beijing during the 2008 Olympic Games

Liu

Zhang

et al. 2010

Journal of Environmental Sciences

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The measurements of atmospheric carbonyls concentrations in Beijing were conducted from 12 July to 8 October, 2008, covering the periods of the 2008 Olympic Games and Paralympic Games. Six carbonyls, including formaldehyde, acetaldehyde, acetone, butyraldehyde, valeraldehyde, and hexaldehyde, were identified in all air samples. The total average concentrations of these carbonyls before, during, and after traffic restriction were (48.1 ± 15.2), (36.6 ± 14.5) and (23.4 ± 12.3) μg/m 3 , respectively. Compared with the period after traffic restriction, the distinct high concentrations of the carbonyls before and during traffic restriction were primarily ascribed to the remarkable contribution of photochemical reactions. With respect to our previous investigation in the summer of 2005, the reductions of formaldehyde, acetaldehyde and acetone during traffic restriction period were about 64%, 47% and 27%, respectively, indicating that the air cleaning actions adopted by the Chinese government for the two games were efficient. The lowest levels of atmospheric carbonyls and the extremely high composition proportion of acetone after the traffic restriction were mainly attributed to the long-term effect of the control measures for the two games.

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Aldehyde emissions from wood-burning fireplaces

Cited by 109 publications

References 4 publications

Boreal forest fires in 1997 and 1998: a seasonal comparison using transport model simulations and measurement data

Boreal forest fires in 1997 and 1998: a seasonal comparison using transport model simulations and measurement data

Mixing ratios and eddy covariance flux measurements of volatile organic compounds from an urban canopy (Manchester, UK)

Ambient levels of atmospheric carbonyls in Beijing during the 2008 Olympic Games

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