Wednesday, September 19, 2012 9:00:39 AM
Zoutman - Bed Bugs & Chlorine Dioxide
Dick Zoutman suggested at the beginning of his presentation that he could not cover the subject of Chlorine Dioxide, among other things, due to time constraints.
----------
Fast forward to the end of his presentation where he brings up the subject of killing Bed Bugs with Ozone/Hydrogen Peroxide.
QUOTE: "....requires much higher concentrations of ozone at 180 and 3% hydrogen peroxide and a 24 hour exposure but most of the methods that are going to kill them all need something like that"
It is unfortunate that the quantity of Ozone has been increased from 80ppm to 180ppm and Hydrogen Peroxide from 1% to 3% so as to be able to decrease the kill time, of all Bed Bug life stages, from 48 hours to 24 hours.
https://ag.purdue.edu/entm/ENTM%20493%20Capstone%20Summaries/Feston%20Capstone%20Summary.pdf
WHY UNFORTUNATE?
Increase the ozone concentration and/or the exposure time and increase the risk of: (example below)
"Anything with an organic structure (like textiles, carpets, furniture, books, and paper) can be severely and irreversibly damaged by ozone causing loss of aesthetic value.
"The problem is that the concentration of ozone (measured in parts per million) combined with the elapsed exposure time, must be carefully monitored to achieve effective treatment without inflicting more damage from the ozone."
http://patrickkingassociates.com/effects_of_ozone.htm
-----------
Zoutman mentioned that he is an avid follower of medical literature and in fact, during his presentation, referenced multiple studies published in the Infection Control and Hospital Epidemiology Journal so I would be surprised if he is unaware of THIS STUDY, also published in Infection Control and Hospital Epidemiology, which shows that all Bed Bug life stages can be eradicated in minutes rather than hours.
-----------
Gaseous Chlorine Dioxide as an Alternative for Bedbug Control
Shawn G. Gibbs, PhD;1 John J. Lowe, MS;1,2 Philip W. Smith, MD;2,3 Angela L. Hewlett, MD3
__________________________________________________________________
Objective. This study evaluated the efficacy of gaseous chlorine dioxide (ClO2) for extermination of bedbugs (Cimex lectularius and Cimex hemipterus).
Background. Bedbugs have received attention because of recent outbreaks. Bedbug eradication is difficult and often requires a time consuming multifaceted approach.
Setting. Laboratory and hospital room.
Methods. Bedbugs were exposed to concentrations of ClO2 of 362, 724, and 1,086 parts per million (ppm) in an exposure chamber.
Bedbug mortality was then evaluated. The ability of ClO2 to penetrate various spaces in a hospital room was evaluated using Bacillus atropheus as a surrogate organism.
Results. Concentrations of 1,086 and 724 ppm of ClO2 yielded 100% bedbug mortality assessed immediately after exposure. Live young
were not observed for any eggs exposed to ClO2 gas. ClO2 at a concentration of 362 ppm for 1,029 parts per million hours(ppm-hours) achieved 100% mortality 6 hours after exposure. A ClO2 concentration of 362 ppm for 519 ppm-hours had 100% mortality 18 hours after exposure. Up to a 6-log reduction in B. atropheus spores was achieved using similar concentrations of ClO2 in a hospital room, indicating that the concentrations needed to kill bedbugs can be achieved throughout a hospital room.
Conclusions. ClO2 is effective at killing bedbugs in the laboratory, and similar concentrations of ClO2 gas can be achieved in a hospital room. ClO2 can be removed from the room without residuals.
Infect Control Hosp Epidemiol 2012;33(5):000-000
_________________________________________________________________
Infection Control and Hospital Epidemiology publishes scientifically authoritative, clinically applicable, peer-reviewed research on control and evaluation of the transmission of pathogens in healthcare institutions and on the use of epidemiological principles and methods to evaluate and improve the delivery of care. Major topics covered include infection control practices, surveillance, cost-benefit analyses, resource use, occupational health, and regulatory issues. ICHE is the official publication of the Society for Healthcare Epidemiology of America (SHEA).
Chlorine Dioxide Gas proven effective against bedbugs, as published in the May 2012 Infection Control and Hospital Epidemiology, click here to read
Dick Zoutman suggested at the beginning of his presentation that he could not cover the subject of Chlorine Dioxide, among other things, due to time constraints.
----------
Fast forward to the end of his presentation where he brings up the subject of killing Bed Bugs with Ozone/Hydrogen Peroxide.
QUOTE: "....requires much higher concentrations of ozone at 180 and 3% hydrogen peroxide and a 24 hour exposure but most of the methods that are going to kill them all need something like that"
It is unfortunate that the quantity of Ozone has been increased from 80ppm to 180ppm and Hydrogen Peroxide from 1% to 3% so as to be able to decrease the kill time, of all Bed Bug life stages, from 48 hours to 24 hours.
https://ag.purdue.edu/entm/ENTM%20493%20Capstone%20Summaries/Feston%20Capstone%20Summary.pdf
WHY UNFORTUNATE?
Increase the ozone concentration and/or the exposure time and increase the risk of: (example below)
"Anything with an organic structure (like textiles, carpets, furniture, books, and paper) can be severely and irreversibly damaged by ozone causing loss of aesthetic value.
"The problem is that the concentration of ozone (measured in parts per million) combined with the elapsed exposure time, must be carefully monitored to achieve effective treatment without inflicting more damage from the ozone."
http://patrickkingassociates.com/effects_of_ozone.htm
-----------
Zoutman mentioned that he is an avid follower of medical literature and in fact, during his presentation, referenced multiple studies published in the Infection Control and Hospital Epidemiology Journal so I would be surprised if he is unaware of THIS STUDY, also published in Infection Control and Hospital Epidemiology, which shows that all Bed Bug life stages can be eradicated in minutes rather than hours.
-----------
Gaseous Chlorine Dioxide as an Alternative for Bedbug Control
Shawn G. Gibbs, PhD;1 John J. Lowe, MS;1,2 Philip W. Smith, MD;2,3 Angela L. Hewlett, MD3
__________________________________________________________________
Objective. This study evaluated the efficacy of gaseous chlorine dioxide (ClO2) for extermination of bedbugs (Cimex lectularius and Cimex hemipterus).
Background. Bedbugs have received attention because of recent outbreaks. Bedbug eradication is difficult and often requires a time consuming multifaceted approach.
Setting. Laboratory and hospital room.
Methods. Bedbugs were exposed to concentrations of ClO2 of 362, 724, and 1,086 parts per million (ppm) in an exposure chamber.
Bedbug mortality was then evaluated. The ability of ClO2 to penetrate various spaces in a hospital room was evaluated using Bacillus atropheus as a surrogate organism.
Results. Concentrations of 1,086 and 724 ppm of ClO2 yielded 100% bedbug mortality assessed immediately after exposure. Live young
were not observed for any eggs exposed to ClO2 gas. ClO2 at a concentration of 362 ppm for 1,029 parts per million hours(ppm-hours) achieved 100% mortality 6 hours after exposure. A ClO2 concentration of 362 ppm for 519 ppm-hours had 100% mortality 18 hours after exposure. Up to a 6-log reduction in B. atropheus spores was achieved using similar concentrations of ClO2 in a hospital room, indicating that the concentrations needed to kill bedbugs can be achieved throughout a hospital room.
Conclusions. ClO2 is effective at killing bedbugs in the laboratory, and similar concentrations of ClO2 gas can be achieved in a hospital room. ClO2 can be removed from the room without residuals.
Infect Control Hosp Epidemiol 2012;33(5):000-000
_________________________________________________________________
Infection Control and Hospital Epidemiology publishes scientifically authoritative, clinically applicable, peer-reviewed research on control and evaluation of the transmission of pathogens in healthcare institutions and on the use of epidemiological principles and methods to evaluate and improve the delivery of care. Major topics covered include infection control practices, surveillance, cost-benefit analyses, resource use, occupational health, and regulatory issues. ICHE is the official publication of the Society for Healthcare Epidemiology of America (SHEA).
Chlorine Dioxide Gas proven effective against bedbugs, as published in the May 2012 Infection Control and Hospital Epidemiology, click here to read
Discover What Traders Are Watching
Explore small cap ideas before they hit the headlines.
