Table of Contents

EXECUTIVE SUMMARY
1 INTRODUCTION
    1.1 Background
    1.2 Results of Phase 1
    1.3 Objectives
    1.4 Guide to Report
2 EXPERIMENTAL DESCRIPTION
    2.1 Tunnel Description
    2.2 Sampling Stations
    2.3 Run Descriptions
3 EXPERIMENTAL METHODS
    3.1 Measurement Methods
    3.2 Dioxin and Furan Laboratory Methods
          3.2.1 Dioxin/Furan Method Summary
    3.3 Methodology for Calculating Emission Factors
4 RESULTS - DIOXINS AND FURANS
    4.1 Observed Concentrations
    4.2 Emission Factors
    4.3 Comparison with Previous Studies
          4.3.1 Emission Profiles
          4.3.2 Comparison with Oehme et al
          4.3.3 Comparison with Hagenmaier et al
5 RESULTS - PM10
    5.1 PM10 Analysis Methods
    5.2 Particulate Mass Results
    5.3 Estimate of Contribution from Resuspended
          Road Dust
          5.3.1 Dioxin and Furan Composition in
                  Tunnel Road Dust
          5.3.2 Results of CMB Modeling
          5.3.3 Impact of Chlorine on Dioxin and
                  Furan Emissions
6 SUMMARY
REFERENCES
APPENDICES
    Appendix 1 Observed Sample Loadings (pg/sample) by
                  run and location
    Appendix 2 Observed Concentrations (pg/m3) by
                  run and location
    Appendix 3 Observed TEQ Concentrations (pg-TEQ/m3)
                  by run and location
    Appendix 4 Volumetric flows in the Fort McHenry
                  Tunnel

Abstract

Gives the results of a study to assess on-road emissions of dioxins and furans from light- and heavy-duty vehicles in the United States. The emission factor determined for heavy-duty diesel vehicles in this work was less than the EPA estimate.

General Product Information

Published
Document Type	Standard
Status	Current
Publisher	American Petroleum Institute
Pages
ISBN