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Field Olfactometry Odor Measurement

Field Olfactometry Odor Measurement. Penn State Odor Assessment Laboratory UMES Odor Assessment Kick-off Training August 16 – 18, 2011 University Park, PA. R.C. Brandt, PhD, PE Department of Agricultural and Biological Engineering The Pennsylvania State University.

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Field Olfactometry Odor Measurement

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  1. Field Olfactometry Odor Measurement Penn State Odor Assessment Laboratory UMES Odor Assessment Kick-off Training August 16 – 18, 2011 University Park, PA R.C. Brandt, PhD, PE Department of Agricultural and Biological Engineering The Pennsylvania State University

  2. How are Odor Samples Secured for Laboratory Olfactometry?

  3. Field Olfactometer How is Odor Threshold ConcentrationMeasured in Ambient Air?

  4. Is Field Olfactometry a New Idea? Scentometer® • Research sponsored by the U.S. Public Health Service, 1958 • Originally manufactured by Barnebey-Cheney Corp, early 1960’s • Now manufactured & sold by Barnebey and Sutcliff Corp. Photo image by St. Croix Sensory, Inc.

  5. Dilution of Odor in Ambient Air Ambient Air Observer Odor Source Nuisance? Air Flow D/T 7 15 30 60 2 4 Dilution-to-Threshold using Field Olfactometry

  6. Original Scentometer D/T Interpretation

  7. How Are Odor Panelists Selected?

  8. Normal Population Smell Bell Chart image by St. Croix Sensory, Inc.

  9. Pen-Test Sensitivity History

  10. Why Field Olfactometry? Advantages: • On-site “REAL-TIME” measurement • No need for sample collection • Lower detection levels possible • Relatively low cost Disadvantages: • Does not provide emission rate • Variable field conditions • Personnel logistics

  11. Multiple Assessor Repeat Observation Field Olfactometry Protocol

  12. Use of Manure Rings for Assessment of Dairy Odors from Alternative Application Methods Prevailing Wind Direction 10 foot wide swath of manure (6000 gal/acre) Odor Panel Advantages: Eliminates wind direction as a primary source of variance Maintains constant odor assessor distancefrom odor source 200 foot diameter manure ring

  13. Field Olfactometry D/T versus Time

  14. Use of Inventory Management to Mitigate Odor Emissions From Land-Applied Biosolids

  15. A Same letter indicates no statistical difference ..... composited over time (α=0.05). B B C

  16. Sensory Comparisons - Odor Intensity versus Log BET10 r=0.87

  17. Sensory Comparisons - Hedonic Tone versus Log BET10 r=0.89

  18. Sensory Comparisons - Intensity versus Hedonic Tone r=0.92

  19. Use of Field Olfactometry for Quantification of WWTP Dewatering Facility Odors Penrose Avenue 2 3 4 1 5 6 11 12 10 9A 9B Interstate - 95 7 8

  20. Field Olfactometry D/T (BET10)

  21. Sensory Comparisons Odor Intensity versus Log BET10 r=0.99

  22. Sensory Comparisons Hedonic Tone versus Log BET10 r=0.99

  23. Swine Manure Odor Ring Study Log BET10 and % odor Reduction

  24. Poultry House Odor Mitigation using Shelterbelt vegetation Layer House Fans W M E Air Sample Locations NR PERC Field Maps 7-23-06.ppt B

  25. Field olfactometry results suggest shelterbelt vegetation may assist odor mitigation.

  26. Field + Laboratory Olfactometry USDA-NRCS CIG Grant: Promoting adoption of innovative conservation cropping systems on livestock farms.

  27. Field Olfactometry Indicates Shallow Disk Injection Reduces Dairy Manure Odors by 66%

  28. Lab Olfactometry Indicates Shallow Disk Injection Reduces Dairy Manure Odors by 58%

  29. Take-Home Point Field olfactometry works! This technology can provide vital information for high-value decision-making Questions?

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