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Analysis of Highway Exposure to Ultra Fine Particles

Author

Listed:
  • Shanjiang Zhu
  • Julian Marshall
  • David Levinson

    (Nexus (Networks, Economics, and Urban Systems) Research Group, Department of Civil Engineering, University of Minnesota)

Abstract

Studies on on-road exposure to Ultra-fine Particles (UFP) are under-reported compared to UFP concentration studies in literature. This study investigates both individual and population exposure to ultra-fine particle in the Twin Cities metropolitan area, Minnesota, by combining an on-road UFP concentration model with people’s travel patterns derived from different traffic monitoring data sources. Spatial and temporal patterns of exposure to UFP among freeway users are revealed through analysis of loop-detector traffic data, while individual exposure is estimated based on GPS travel trajectories. A few hot spots near major freeway interchanges represents a majority of total exposure to UFP, and the exposure during workday morning and afternoon peak periods is the highest. Significant disparity in individual exposure to UFP among population is observed. In general, individual exposure to UFP follows a log-normal distribution. Findings from this paper could significantly inform future epidemiological studies in on-road exposure to UFP.

Suggested Citation

  • Shanjiang Zhu & Julian Marshall & David Levinson, 2012. "Analysis of Highway Exposure to Ultra Fine Particles," Working Papers 000099, University of Minnesota: Nexus Research Group.
    • Handle: RePEc:nex:wpaper:ufp-onroad
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    File URL: http://hdl.handle.net/11299/182078
    File Function: First version, 2012
    Download Restriction: no
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    More about this item

    Keywords

    commuting; air pollution; emissions; pollution intake; GPS; route choice; ultra fine particles.;
    All these keywords.

    JEL classification:

    • R41 - Urban, Rural, Regional, Real Estate, and Transportation Economics - - Transportation Economics - - - Transportation: Demand, Supply, and Congestion; Travel Time; Safety and Accidents; Transportation Noise
    • R48 - Urban, Rural, Regional, Real Estate, and Transportation Economics - - Transportation Economics - - - Government Pricing and Policy
    • R53 - Urban, Rural, Regional, Real Estate, and Transportation Economics - - Regional Government Analysis - - - Public Facility Location Analysis; Public Investment and Capital Stock
    • Q53 - Agricultural and Natural Resource Economics; Environmental and Ecological Economics - - Environmental Economics - - - Air Pollution; Water Pollution; Noise; Hazardous Waste; Solid Waste; Recycling
    • I12 - Health, Education, and Welfare - - Health - - - Health Behavior

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