Particle size distribution and gas-particle partition of polycyclic aromatic hydrocarbons in Helsinki urban area

Ambient concentrations of polycyclic aromatic hydrocarbons (PAHs) were measured in Helsinki (Finland). Particle mass size distributions were obtained with a cascade impactor (12 stages) with glass fibre filters as substrates. Simultaneously with the impactor measurements, particulate and gaseous PAH...

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Bibliographic Details
Published in:Journal of atmospheric chemistry 2004-03, Vol.47 (3), p.223-241
Main Authors: SHIMMO, Masahiko, SAARNIO, Karri, AALTO, Pasi, HARTONEN, Kari, HYÖTYLÄINEN, Tuulia, KULMALA, Markku, RIEKKOLA, Marja-Liisa
Format: Article
Language:English
Subjects:
Applied sciences
Atmospheric pollution
Atoms & subatomic particles
Chromatography
Exact sciences and technology
Gas chromatography
Liquid chromatography
Mass spectrometry
Pollutants physicochemistry study: properties, effects, reactions, transport and distribution
Pollution
Polycyclic aromatic hydrocarbons
Urban areas
Vapor pressure
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Summary:Ambient concentrations of polycyclic aromatic hydrocarbons (PAHs) were measured in Helsinki (Finland). Particle mass size distributions were obtained with a cascade impactor (12 stages) with glass fibre filters as substrates. Simultaneously with the impactor measurements, particulate and gaseous PAHs were collected on a quartz filter and XAD-2 adsorbent, respectively, for evaluation of gas-partition coefficients. Samples were analysed for PAHs by on-line coupled supercritical fluid extraction -- liquid chromatography -- gas chromatography -- mass spectrometry. The impactor results showed that most of the PAHs in Helsinki urban area were concentrated in fine particles (
ISSN:0167-7764
1573-0662
DOI:10.1023/B:JOCH.0000021088.37771.f7