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Airborne Infection Control in the Design of Green Buildings: Applications for Upper-room Ultraviolet Germicidal Irradiatio...
Objective <ul><li>To demonstrate how an airborne infection control technology could be implemented into an existing framew...
Outline <ul><li>Upper-room UVGI  </li></ul><ul><li>What is green building? </li></ul><ul><li>“ Innovation in Design” credi...
What is UV-C? http://www.uvcomparison.com/images/scienceUV-Cspectrum.jpg
Upper-room UVGI http://www.ultraviolet.com/air/hygeai04.htm distances in feet
High Levels of Air Disinfection McDevitt JJ, Milton DK, Rudnick SN, First MW (2008) Inactivation of Poxviruses by Upper-Ro...
Cost-effectiveness <ul><li>Depends on: </li></ul><ul><ul><li>Organism susceptibility </li></ul></ul><ul><ul><li>Risk of tr...
How to apply UVGI to design of Green Buildings? <ul><li>Potential benefits </li></ul><ul><ul><li>Improved occupant health ...
 
 
 
 
 
Indoor Environmental Quality <ul><li>Minimum IAQ Performance (req’d) </li></ul><ul><li>Environmental Tobacco Smoke Control...
“ Innovation in Design” credit <ul><li>“ To provide design teams and projects the opportunity to be awarded points for exc...
“ Innovation in Design” credit <ul><li>Innovation credit intent </li></ul><ul><li>Requirement for compliance </li></ul><ul...
Innovation Credit Intent: Reduction of Airborne Pathogens <ul><li>Reduce risk of transmission of airborne disease </li></u...
Requirements for Compliance <ul><li>Design & installation by qualified professional </li></ul><ul><li>Verification of occu...
Potential Design Approaches <ul><li>Upper-room UVGI </li></ul><ul><li>In-duct UVGI </li></ul><ul><li>Stand alone air clean...
Conclusions <ul><li>UVGI in Green Buildings?  </li></ul><ul><ul><li>Potential for reduced risk of indoor air infection </l...
Acknowledgements <ul><li>Philip Brickner and Richard Vincent </li></ul><ul><ul><li>St. Vincent’s Hospital Manhattan, Depar...
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Airborne Infection Control in the Design of Green Buildings: Applications for Upper-room Ultraviolet Germicidal Irradiation

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Upper room ultraviolet germicidal irradiation (UVGI) has shown great potential as an airborne infection control measure in the indoor environment. There is a growing literature on the benefits and applications of upper-room UVGI, however, designers looking to specify this technology often have difficulty due to a lack of general guidance on installation and operation of these systems. One potential approach is to include upper-room UVGI in an existing framework used in the design of high-performance green buildings. These aim to reduce the environmental impact of buildings and promote healthy environments for living and working.

In settings with an increased concern for airborne pathogens such as hospitals, UVGI offers an energy efficient approach to providing additional air disinfection without increasing the capacity of HVAC systems. Studies have demonstrated UVGI performance in reducing pathogen concentrations with effective air changes several times greater than that accomplished by ventilation alone. These examples justify the application of UVGI in green buildings from both the perspective of energy efficiency and improved indoor environmental quality.

Published in: Design, Business, Technology
  • Hi, I thought your presentation was very interesting and informative

    You might want to visit http://www.e-co.uk.com/tbs.htm where we are showing a video presentation on the use of UVGI (UVC) and how it addresses green initiatives including LEED + take a look at my presentation on this slideshare about reducing building occupants exposure to viruses such as H1N1.

    I have downloaded your presentation for future reference, stay in touch.

    Hillary Spicer
    hillary@e-co.uk.com
    http://www.e-co.uk.com
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Airborne Infection Control in the Design of Green Buildings: Applications for Upper-room Ultraviolet Germicidal Irradiation

  1. 1. Airborne Infection Control in the Design of Green Buildings: Applications for Upper-room Ultraviolet Germicidal Irradiation Kevin F. Banahan Candidate for Master of Science Department of Environmental Health Harvard School of Public Health
  2. 2. Objective <ul><li>To demonstrate how an airborne infection control technology could be implemented into an existing framework for the design of green buildings </li></ul>
  3. 3. Outline <ul><li>Upper-room UVGI </li></ul><ul><li>What is green building? </li></ul><ul><li>“ Innovation in Design” credit for UVGI </li></ul>
  4. 4. What is UV-C? http://www.uvcomparison.com/images/scienceUV-Cspectrum.jpg
  5. 5. Upper-room UVGI http://www.ultraviolet.com/air/hygeai04.htm distances in feet
  6. 6. High Levels of Air Disinfection McDevitt JJ, Milton DK, Rudnick SN, First MW (2008) Inactivation of Poxviruses by Upper-Room UVC Light in a Simulated Hospital Room Environment. PLoS ONE 3(9): e3186. Eq. ACH due to UV
  7. 7. Cost-effectiveness <ul><li>Depends on: </li></ul><ul><ul><li>Organism susceptibility </li></ul></ul><ul><ul><li>Risk of transmission </li></ul></ul><ul><ul><li>Site characteristics: air mixing, relative humidity, occupancy </li></ul></ul>Hypothetical scenario with TB in waiting room (Ko, 2001) $133 UVGI $420 Stand-alone HEPA $1,708 Increased Ventilation Present value ($) per TST conversion Control Strategy
  8. 8. How to apply UVGI to design of Green Buildings? <ul><li>Potential benefits </li></ul><ul><ul><li>Improved occupant health </li></ul></ul><ul><ul><li>Energy efficient </li></ul></ul>
  9. 14. Indoor Environmental Quality <ul><li>Minimum IAQ Performance (req’d) </li></ul><ul><li>Environmental Tobacco Smoke Control (req’d) </li></ul><ul><li>Outdoor Air Delivery Monitoring </li></ul><ul><li>Increased Ventilation </li></ul><ul><li>Construction IAQ Management Plan </li></ul><ul><li>Low-Emitting Materials </li></ul><ul><li>Indoor Chemical & Pollutant Source Control </li></ul><ul><li>Controllability of Systems </li></ul><ul><li>Thermal Comfort </li></ul><ul><li>Daylighting and Views </li></ul>
  10. 15. “ Innovation in Design” credit <ul><li>“ To provide design teams and projects the opportunity to be awarded points for exceptional performance above the requirements set by the LEED Green Building Rating system and/or innovative performance in Green Building categories not specifically addressed by the LEED Green Building Rating System.” </li></ul>
  11. 16. “ Innovation in Design” credit <ul><li>Innovation credit intent </li></ul><ul><li>Requirement for compliance </li></ul><ul><li>Submittals to demonstrate compliance </li></ul><ul><li>Potential design approaches </li></ul>
  12. 17. Innovation Credit Intent: Reduction of Airborne Pathogens <ul><li>Reduce risk of transmission of airborne disease </li></ul><ul><li>Provide additional equivalent air exchanges for airborne infection control </li></ul><ul><li>Above the required outdoor ventilation rates </li></ul>
  13. 18. Requirements for Compliance <ul><li>Design & installation by qualified professional </li></ul><ul><li>Verification of occupant safety during commissioning </li></ul><ul><li>Operations and Maintenance Plan </li></ul>http://www.ultraviolet.com/air/hygeai03.htm
  14. 19. Potential Design Approaches <ul><li>Upper-room UVGI </li></ul><ul><li>In-duct UVGI </li></ul><ul><li>Stand alone air cleaners </li></ul><ul><li>Increased mechanical ventilation </li></ul><ul><li>Natural ventilation </li></ul>
  15. 20. Conclusions <ul><li>UVGI in Green Buildings? </li></ul><ul><ul><li>Potential for reduced risk of indoor air infection </li></ul></ul><ul><ul><li>Energy efficient compared to alternatives </li></ul></ul><ul><li>Upper-room UVGI should be considered on a site specific basis </li></ul><ul><li>Life-cycle assessment would improve design decisions for green building applications </li></ul>
  16. 21. Acknowledgements <ul><li>Philip Brickner and Richard Vincent </li></ul><ul><ul><li>St. Vincent’s Hospital Manhattan, Department of Community Medicine </li></ul></ul><ul><li>Robert Herrick </li></ul><ul><ul><li>Department of Environmental Health, Harvard School of Public Health </li></ul></ul>
  17. 22. Questions?

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