One-year study of nitro-organic compounds and their relation to wood burning in PM10 aerosol from a rural site in Belgium

Show simple item record Kahnt, Ariane en Behrouzi, Shabnam en Vermeylen, Reinhilde en Safi Shalamzari, Mohammad en Vercauteren, Jordy en Roekens, Edward en Claeys, Magda en Maenhaut, Willy en 2014-08-10T22:48:16Z en 2013-12 en
dc.identifier.citation Atmospheric Environment, 2013, 81 pp. 561 - 568 en
dc.identifier.issn 1352-2310 en
dc.identifier.uri en
dc.description.abstract Nitro-organic compounds were determined in a one-year set of atmospheric PM10 filter samples that were collected at a rural background site in Hamme, Belgium. In an earlier study, it was found that the site was substantially impacted by wood burning, making the filter samples appropriate for further investigations on wood burning indicators. In total, four groups of nitro-aromatic compounds (with molecular weights (MWs) of 139, 155, 169, and 183), α-pinene-related nitrooxy-organosulfates (MW 295), and the resin acid dehydroabietic acid (DHAA, MW 300) were quantified using liquid chromatography combined with negative ion electrospray ionization mass spectrometry. The annual mean concentrations were 0.94, 6.0, 7.7, 4.8, 7.8, and 1.76 ng m−3 for the sum of the nitrophenols (MW 139), 4-nitrocatechol (MW 155), the sums of the methyl-nitrocatechols (MW 169), of the dimethyl-nitrocatechols (MW 183), and of the α-pinene-related nitrooxy-organosulfates (MW 295), and DHAA (MW 300), respectively. 4-nitrocatechol, the sum of the methyl-nitrocatechols, and the sum of the dimethyl-nitrocatechols were substantially correlated with levoglucosan (r-values of 0.71, 0.66, and 0.65, respectively), consistent with their proposed origin from biomass burning. The nitro-aromatic compounds were also observed during the summer months, indicating a non-negligible usage of wood burning for domestic purposes at the site. The α-pinene-related nitrooxy-organosulfates (MW 295) were detected in high concentrations during the winter period, but they were poorly correlated with the biomass burning tracers. All of the targeted species showed a clear seasonal variation with highest concentrations in winter, followed by autumn, spring, and summer. Based on the DHAA measurements, it is suggested that burning of softwood is likely an important source for the formation of all the nitro-organic compounds measured. en
dc.language aa en
dc.relation.ispartofseries Atmospheric Environment en
dc.rights Items in ResearchSpace are protected by copyright, with all rights reserved, unless otherwise indicated. Previously published items are made available in accordance with the copyright policy of the publisher. Details obtained from en
dc.rights.uri en
dc.title One-year study of nitro-organic compounds and their relation to wood burning in PM10 aerosol from a rural site in Belgium en
dc.type Journal Article en
dc.identifier.doi 10.1016/j.atmosenv.2013.09.041 en
pubs.begin-page 561 en
pubs.volume 81 en
pubs.end-page 568 en
dc.rights.accessrights en
pubs.subtype Article en
pubs.elements-id 448389 en
pubs.number C en
pubs.record-created-at-source-date 2014-08-11 en

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