Mobile sources of atmospheric polycyclic aromatic hydrocarbons: a roadway tunnel study

Suspended particulate matter and vapor samples were collected in a heavily traveled roadway tunnel and analyzed for polycyclic aromatic hydrocarbons (PAHs). The vapor phase samples were found to contain high levels of phenanthrene and methyl- and dimethylphenanthrenes. The particulates could be clas...

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Bibliographic Details
Published in:Environmental science & technology 1989-10, Vol.23 (10), p.1269-1278
Main Authors: Benner, Bruce A, Gordon, Glen E, Wise, Stephen A
Format: Article
Language:English
Subjects:
AIR
AIR POLLUTION
AIRE
ANALISIS
ANALYSE
ANALYSIS
Applied sciences
Atmospheric pollution
BATIMENT
BUILDINGS
CARRETERAS
COMPOSICION
COMPOSITION
CONSTRUCCIONES
CONTAMINACION
CONTAMINACION DEL AIRE
CONTAMINANTES
ECHANTILLONNAGE
EMISSION
Exact sciences and technology
HIDROCARBUROS
HYDROCARBONS
HYDROCARBURE
MUESTREO
POLLUANT
POLLUTANTS
POLLUTION
POLLUTION ATMOSPHERIQUE
Pollution sources. Measurement results
ROADS
ROUTE
SAMPLING
Transports
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Description
Summary:Suspended particulate matter and vapor samples were collected in a heavily traveled roadway tunnel and analyzed for polycyclic aromatic hydrocarbons (PAHs). The vapor phase samples were found to contain high levels of phenanthrene and methyl- and dimethylphenanthrenes. The particulates could be classified into two groups: one containing alkylated phenanthrenes from diesel fuel, and another consisting of high molecular weight PAHs from gasoline emissions. In general, PAH levels had declined by a factor of between 5 and 10 since 1975 due to the use of catalytic converters in automobiles.
ISSN:0013-936X
1520-5851
DOI:10.1021/es00068a014