Near roadway concentrations of organic source markers

Near roadway concentrations of organic source markers

Concentrations of elemental carbon (EC), organic carbon (OC), and 33 organic source markers (12 alkanes, 18 polycyclic aromatic hydrocarbons and ketones, and 3 hopanes) are reported near a highway in Raleigh, NC with an annual average daily traffic count of approximately 125,000 vehicles. Daily samp...

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Veröffentlicht in:Atmospheric environment (1994) 2009-06, Vol.43 (18), p.2862-2867
Hauptverfasser: Olson, David A., McDow, Stephen R.
Format: Artikel
Sprache:eng
Schlagworte:
Alkanes
Analysis methods
Applied sciences
Atmospheric pollution
Carbon
Counting
Exact sciences and technology
Hopanes
Ketones
Markers
Organic source markers
Pollution
Pollution sources. Measurement results
Polycyclic aromatic hydrocarbons (PAHs)
Roads
Roadways
Source apportionment
Traffic
Transports
Vehicles
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Zusammenfassung:Concentrations of elemental carbon (EC), organic carbon (OC), and 33 organic source markers (12 alkanes, 18 polycyclic aromatic hydrocarbons and ketones, and 3 hopanes) are reported near a highway in Raleigh, NC with an annual average daily traffic count of approximately 125,000 vehicles. Daily samples (24-h) were collected at two locations, one approximately 10 m and the other 275 m perpendicular from the road. Concentrations of OC were similar between near (mean = 7.6 μg m −3) and far (8.0 μg m −3) locations, but concentrations of most organic species at the near site were between 1.5 and 2 times higher than those at the far site.
ISSN:1352-2310
1873-2844
DOI:10.1016/j.atmosenv.2009.03.016