MOBILE SOURCES OF ATMOSPHERIC POLYCYCLIC AROMATIC HYDROCARBONS: A ROADWAY TUNNEL STUDY
Suspended particulate matter samples were collected by high volume samplers in a heavily traveled roadway tunnel to characterize the mobile source emissions (diesel- and gasoline-fueled vehicles) for polycyclic aromatic hydrocarbons (PAHs). Liquid and gas chromatographic techniques were employed to isolate and quantify individual PAHs in dichloromethane extracts of Teflon and glass-fiber filters. Mobile-source PAH emission estimates were generated from the particle- and vapor-phase samples collected in the tunnel and agree with emission estimates reported previously for roadway tunnels in Japan. Factor analysis of PAH concentrations from 47 filter samples yielded two factors; one of which possibly represented the diesel-fueled vehicles (heavy-duty trucks) and the other, either gasoline-fueled vehicles or a composite of the gasoline and diesel sources.
-
Corporate Authors:
National Institute of Standards and Technology
Organic Analytical Research Division
Gaithersburg, MD United States 20760 -
Authors:
- Benner, B A
- Gordon, G E
- Wise, S A
- Publication Date: 1989
Media Info
- Pagination: 10 p.
Subject/Index Terms
- TRT Terms: Aromatic hydrocarbons; Fiberglass; Filters; Glass fibers; Highway operations; Hydrocarbons; Pollutants; Polytetrafluoroethylene; Solids; Suspended sediments; Suspensions (Chemistry); Tunnels; Vehicular tunnels
- Uncontrolled Terms: Suspended solids
- Old TRIS Terms: Tunnel traffic operations
- Subject Areas: Bridges and other structures; Highways;
Filing Info
- Accession Number: 00495248
- Record Type: Publication
- Source Agency: National Technical Information Service
- Files: TRIS
- Created Date: Jul 31 1990 12:00AM