||Spectral Fingerprinting of Polycyclic Aromatic Hydrocarbons in High-Volume Ambient Air Samples by Constant Energy Synchronous Luminescence Spectroscopy.
Kerkhoff, M. J. ;
Lee, T. M. ;
Allen, E. R. ;
Lundgren, D. A. ;
Winefordner, J. D. ;
||Florida Univ., Gainesville.;Environmental Sciences Research Lab., Research Triangle Park, NC.
Polycyclic aromatic hydrocarbons ;
Air pollution control ;
Air sampling ;
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A high-volume sampler fitted with a glass-fiber filter and backed by polyurethane foam (PUF) was employed to collect airborne particulate and gas-phase polycylic aromatic hydrocarbons (PAHs) in ambient air. Samples were collected from four sources representing a range of environmental conditions: gasoline engine exhaust, diesel engine exhaust, air near a heavily traveled interstate site, and air from a moderately polluted urban site. Spectral fingerprints of the unseparated particulate and gas-phase samples were obtained by constant energy synchronous luminescence spectrocopy (CESLS). Five major PAHs in the gas-phase extracts were characterized and estimated. The compatibility of a high-volume sampling method using polyurethane foam coupled with CESLS detection is explored for use as a screening technique for PAHs in ambient air.