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EPA’s Continued Development and Application of Optical Remote Sensing (ORS) for Emission Monitoring

EPA’s Continued Development and Application of Optical Remote Sensing (ORS) for Emission Monitoring. Ram A. Hashmonay, Keith Wagoner, and David F. Natschke ARCADIS 4915 Prospectus Drive, Suite F Durham, NC 27713 July 29-31, 2002.

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EPA’s Continued Development and Application of Optical Remote Sensing (ORS) for Emission Monitoring

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  1. EPA’s Continued Development and Application of Optical Remote Sensing (ORS) for Emission Monitoring Ram A. Hashmonay, Keith Wagoner, and David F. Natschke ARCADIS 4915 Prospectus Drive, Suite FDurham, NC 27713 July 29-31, 2002 D. Bruce Harris, Chester A. Vogel, Richard C. Shores, and Edgar L. Thompson U.S. Environmental Protection Agency National Risk Management Research LaboratoryResearch Triangle Park, NC 27711

  2. Recent Activities -- ORS Method Development • Radial scanning to locate emission sources • Small-scale field test using simulated source to test capability • Small field study on actual source site • Diesel exhaust plume sampling

  3. Radial Scanning

  4. Radial Geometry: A Simplified Practical Approach

  5. 16-Beam Classical CT and Radial CT Configurations

  6. Validation Study Experimental Setup

  7. Validation Field Site

  8. East

  9. Center

  10. South

  11. Southwest

  12. West

  13. Diesel Exhaust Plume Measurements

  14. The ORS Measurement Setup • OP-FTIR – Monostatic, Coaxial, Single-Telescope Design • Beam Path – 7 Meters (One Way) • Diesel Exhaust from a Stationary Class-8 Tractor Directed Through Infrared Beam

  15. The Diesel Emissions Measurement Setup

  16. Diesel Emissions Time Plot

  17. Time Plots of Measured NO and NO2 Concentrations

  18. Recent ORS Activities -- Emissions Monitoring • Agricultural ammonia sources • Waste lagoon control via porous biocover • High-rise layer house • Solid waste landfill

  19. Agricultural Ammonia Sources

  20. ORS Plane-integrated Interception and Measurement of Plume

  21. wind OP-FTIR Measurement Paths

  22. Seasonal Emission Rates Ammonia Ammonia Methane Methane grams/min grams/min grams/min grams/min 7/11/2000 7/11/2000 20 20 40 40 uncovered uncovered 8/16/2000 8/16/2000 4.7 4.7 66 66 covered covered 2/28/2001 2/28/2001 0.84 0.84 62 62 covered covered 8/15/2001 8/15/2001 Not Not 1.2 1.2 Available Available covered covered

  23. 250,000-Hen Layer House

  24. MSW Landfill Measurements

  25. Four-Beam Reconstructions of Methane and Ammonia in a Landfill

  26. Future Activities • Method improvement and application validation -- DOD’s ESTCP Program supported project • Agricultural ammonia sources -- broilers, hogs, and cattle • Landfills -- MSW bioreactors and brownfields • Diesel emissions -- weigh station and cross road studies • Incorporate Tunable Diode Laser (TDL) system into program

  27. Summary • Radial scanning has demonstrated the ability to locate point sources within the field of measurement • Initial deployment of radial scanning on a large landfill is scheduled in September • Plane-integrated (PI) OP-FTIR has been used to evaluate the effectiveness of a lagoon biocover to control ammonia emissions • Single path and PI OP-FTIR measurements have been made on a large high-rise layer house - data analysis is not finished

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