Source:http://linkedlifedata.com/resource/pubmed/id/16434076
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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
7
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pubmed:dateCreated |
2006-7-24
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pubmed:abstractText |
Atmospheric aerosol particles were collected in a Finnish Scots pine forest as part of a European Union project. Sampling was done in March-April 2003 with a high-volume sampler. Dynamic ultrasonic-assisted solvent extraction and gas chromatography-mass spectrometry (GC-MS) were applied to the analysis of aerosol samples for analytes such as n-alkanes, polycyclic aromatic hydrocarbons (PAH), oxidized polycyclic aromatic hydrocarbons (oxy-PAHs), sesquiterpenes (SQT) and oxidized sesquiterpenes (oxy-SQT). The highest concentrations were found for the n-alkanes, which were present in a wide range (C11-C32) indicating both biogenic and anthropogenic sources. PAH compounds were found in every sample while oxy-PAH compounds were present in low concentrations in a few samples. A few oxidized monoterpenes, most notably (-)-verbenone and pinonaldehyde, were found in several samples in concentrations clearly exceeding the PAH concentrations. The effect of temperature could be seen in most samples, where the concentrations of n-alkanes declined with decreasing temperatures. Particle formation events were accompanied by higher concentrations of heavy n-alkanes, verbenone and pinonaldehyde.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:chemical | |
pubmed:status |
MEDLINE
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pubmed:month |
Aug
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pubmed:issn |
0045-6535
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
64
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
1185-95
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pubmed:dateRevised |
2006-11-15
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pubmed:meshHeading |
pubmed-meshheading:16434076-Aerosols,
pubmed-meshheading:16434076-Air Pollutants,
pubmed-meshheading:16434076-Environmental Monitoring,
pubmed-meshheading:16434076-Finland,
pubmed-meshheading:16434076-Gas Chromatography-Mass Spectrometry,
pubmed-meshheading:16434076-Organic Chemicals,
pubmed-meshheading:16434076-Pinus sylvestris,
pubmed-meshheading:16434076-Trees
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pubmed:year |
2006
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pubmed:articleTitle |
Characterization of organic compounds in aerosol particles from a coniferous forest by GC-MS.
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pubmed:affiliation |
Laboratory of Analytical Chemistry, Department of Chemistry, University of Helsinki, P.O. Box 55, FIN-00014 Helsinki, Finland.
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pubmed:publicationType |
Journal Article,
Research Support, Non-U.S. Gov't
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