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- Title
Contribution from Selected Organic Species to PM<sub>2.5</sub> Aerosol during a Summer Field Campaign at K-Puszta, Hungary.
- Authors
Maenhaut, Willy; Xuguang Chi; Wan Wang; Cafmeyer, Jan; Yasmeen, Farhat; Vermeylen, Reinhilde; Szmigielska, Katarzyna; Janssens, Ivan A.; Claeys, Magda
- Abstract
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 α-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 α-pinene to the OC was estimated at a minimum of 7.1%.
- Subjects
ORGANIC compounds &; the environment; CARBON &; the environment; VOLATILE organic compounds; MONOTERPENES; PROTON transfer reactions; ION exchange chromatography; LIQUID chromatography-mass spectrometry
- Publication
Atmosphere, 2017, Vol 8, Issue 11, p221
- ISSN
2073-4433
- Publication type
Article
- DOI
10.3390/atmos8110221