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Effect of Chlorine Dioxide Gas Application to Egg Surface: Microbial Reduction Effect, Quality of Eggs, and Hatchability
Effect of Chlorine Dioxide Gas Application to Egg Surface: Microbial Reduction Effect, Quality of Eggs, and Hatchability
"40 ppm ClO2 had no effect on the internal quality of the table eggs, when comparing with the UV treatment method. The hatchability of hatching eggs was not statistical different between formaldehyde fumigation and 80 ppm ClO2 gas treatment, though the value was decreased at high concentration of 160 ppm ClO2 gas.
·ncbi.nlm.nih.gov·
Effect of Chlorine Dioxide Gas Application to Egg Surface: Microbial Reduction Effect, Quality of Eggs, and Hatchability
Photolysis driven indoor air chemistry following cleaning of hospital wards
Photolysis driven indoor air chemistry following cleaning of hospital wards
****!!!!***** (2020) {This study was done via computer modeling that predicted some significantly different results than real-world. Example: Degradation of ClO2 throughout room was based on rate 1 m from fluorescent lamp. In actuality, little UV reaches beyond a couple meters, so rest of gas in room is unaffected other than gas blown into close proximity.} {Negative byproducts from chlorine dioxide gas fumigation} "previously unconsidered potential consequence of such cleaning technologies: the photochemical formation of high concentrations of hydroxyl radicals (OH), hydroperoxy radicals (HO2), organic peroxy radicals (RO2), and chlorine radicals (Cl) which can form harmful reaction products when exposed to chemicals commonly found in indoor air." "Steady-state Cl concentrations are elevated at all OClO concentrations under bare fluorescent and attenuated outdoor lighting, with little dependence on OClO concentration... because species involved in the reactions that lead to Cl formation, as well as Cl itself, can undergo competing reactions" " Sunlight is attenuated as it passes through windows, such that 3 and 10%, respectively, of UV and visible light ingresses" "We assume a ward volume of 35 m3 with an area to volume ratio of 1 m2/m" " temperature was assumed to be 293 K and 50% relative humidity" "The emissions were set to provide the approximate concentrations reported in the literature for NTD use... 3000 and 350 ppm for OClO (to reflect two commonly used concentrations). This required emission rates of... 0.8 and 0.1 ppm/s to deliver 3000 and 350 ppm of OClO " "The emissions were assumed to last for one hour and then stop. After another hour (at noon), ventilation was resumed at 2 per h. There is very little information in the literature on how long the gases will be emitted during cleaning" "Maximum... concentrations occurred [of] RO2 and Cl with OClO [chlorine dioxide] photolysis. Elevated concentrations may persist for hours... Products from reactions involving radicals could significantly decrease air quality when disinfectants are used, leading to adverse health effects for occupants" "OClO photolysis under attenuated sunlight is ~20 times faster than under bare fluorescent lighting," "O3 levels generated from OClO photolysis are much higher than those commonly attained using O3 as the primary fumigant""Photon fluxes will vary greatly throughout a room" "we suggest that the efficacy of NTDs on reducing loadings of several strains of bacteria should be further studied in the dark and under illumination from different indoor lighting. It is possible that efficacy will be greatly enhanced under common lighting sources such as fluorescent lights due to the production of radicals that may inactivate bacteria more effectively than the disinfection agents." "[This info needs verification:] There is no ClOO absorbance at wavelengths longer than 280 nm"
·core.ac.uk·
Photolysis driven indoor air chemistry following cleaning of hospital wards
Toxicity of Chlorine Dioxide Gas to Phosphine-Susceptible and -Resistant Adults of Five Stored-Product Insect Species: Influence of Temperature and Food During Gas Exposure
Toxicity of Chlorine Dioxide Gas to Phosphine-Susceptible and -Resistant Adults of Five Stored-Product Insect Species: Influence of Temperature and Food During Gas Exposure
"Adults of phosphine-susceptible and -resistant strains of [insects] exposed for 2–12 h to a chlorine dioxide gas concentration of 1.40 g/m3 (520 ppm) in an outdoor trailer during July and October of 2015. The mean ± SE temperatures in July and October were 32.8 ± 0.5°C and 24.8 ± 0.6°C, respectively. In July, complete mortality after 5 d was achieved"
·bioone.org·
Toxicity of Chlorine Dioxide Gas to Phosphine-Susceptible and -Resistant Adults of Five Stored-Product Insect Species: Influence of Temperature and Food During Gas Exposure
Use of cl02 in chicken hatcheries - Slide presentation
Use of cl02 in chicken hatcheries - Slide presentation
2000-G chlorine dioxide slow-release gas sachets used. "Generally, embryos are negatively affected by early continuous exposure to ClO2. The adverse effect decreases at later stages of development of embryo. Treatment of hatching eggs in the Treatment of hatching eggs in the hatcher (18-21 days) proven to be safe. Short (12 hour) treatment of eggs in the setter, every time a new batch of eggs is moved in, seems to be also safe. Treatment with the levels of ClO2 safe for eggs seems to be effective in control of Aspergillus contamination."
·icatrinova.com·
Use of cl02 in chicken hatcheries - Slide presentation
Effect of Gaseous Chlorine Dioxide on Indoor Microbial Contaminants, bioaerosols
Effect of Gaseous Chlorine Dioxide on Indoor Microbial Contaminants, bioaerosols
****** "ClO2 gas was effective in reducing culturable and total fungi and bacteria in indoor air. The reduction of total count on surfaces was less efficient. The treatment process appeared to have no effect or increase the concentrations of endotoxin and (133)--D-glucan, which have been associated with respiratory symptoms in some individuals." "Endotoxin concentrations before and after ClO2 treatment were 10.32 and 18.59 endotoxin units per cubicmeter (EU/m3), respectively. Paired tests comparing endotoxin concentrations before and after treatment showed no significant difference. " "House tented decontamination: Greater than 650 ppm in air for 12.5 hours" "Both the total microscopic count and the PCR count obtained for air samples decreased significantly. This could be caused by direct reduction of spores in the air or reduction of spores on surfaces that would serve as the source for the airborne spores. However, no decrease was observed in the semiquantitative analysis of amount of spores and hyphae in the stickytape samples collected from surfaces."
·tandfonline.com·
Effect of Gaseous Chlorine Dioxide on Indoor Microbial Contaminants, bioaerosols