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Title
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Contribution from selected organic species to PM2.5 aerosol during a summer field campaign at K-Puszta, Hungary
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Author
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Abstract
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| A summer field campaign was conducted at the forested background site of K-puszta in Hungary. The main aim was to assess the contribution of terpene-derived particulate organic compounds to the PM2.5 organic carbon (OC) and of the secondary organic carbon (SOC) from -pinene to the OC. The study lasted from 24 May to 29 June 2006; the first half the weather was cold, while the second half was warm. Separate daytime and night-time PM2.5 samples were collected with a high-volume sampler and the samples were analysed by several analytical techniques, including ion chromatography (IC) and liquid chromatography-mass spectrometry (LC/MS). The latter technique was used for measuring the terpene-derived species. Ancillary high time resolution measurements of volatile organic compounds (VOCs) were made with proton-transfer reaction-mass spectrometry. The temporal and diurnal variability of the particulate compounds and VOCs and interrelationships were examined. It was found that the monoterpenes and a number of terpene-derived particulate compounds, such as cis-pinic and cis-caric acid, exhibited a strong day/night difference during the warm period, with about 10 times higher levels during the night-time. During the warm period, the IC compounds and LC/MS compounds accounted, on average, for 3.1% and 2.0%, respectively, of the OC, whereas the contribution of SOC from -pinene to the OC was estimated at a minimum of 7.1%. |
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Language
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English
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Source (journal)
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Atmosphere. - Place of publication unknown
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Publication
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Place of publication unknown
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publisher unknown
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2017
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ISSN
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2073-4433
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DOI
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10.3390/ATMOS8110221
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Volume/pages
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8
:11
(2017)
, 14 p.
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Article Reference
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221
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ISI
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000416602500015
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Medium
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E-only publicatie
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Full text (Publisher's DOI)
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Full text (open access)
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