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The use of ozone gas for the inactivation of Bacillus anthracis and Bacillus subtilis spores on building materials
- Source :
- PLoS ONE, Vol 15, Iss 5, p e0233291 (2020), PLoS ONE
- Publication Year :
- 2020
- Publisher :
- Public Library of Science (PLoS), 2020.
-
Abstract
- A study was conducted to assess the efficacy of ozone gas in inactivating spores of both Bacillus anthracis and Bacillus subtilis inoculated onto six building materials (glass, wood, carpet, laminate, galvanized metal, and wallboard paper). Testing conditions consisted of ozone gas concentrations ranging from 7,000-12,000 parts per million (ppm), contact times from 4 to 12 h, and two relative humidity (RH) levels of 75 and 85%. Results showed that increasing the ozone concentration, contact time, and RH generally increased decontamination efficacy. The materials in which the highest decontamination efficacy was achieved for B. anthracis spores were wallboard paper, carpet, and wood with ≥ 6 log10 reduction (LR) occurring with 9,800 ppm ozone, 85% RH, for 6 h. The laminate and galvanized metal materials were generally more difficult to decontaminate, requiring 12,000 ppm ozone, 85% RH, and 9-12 h contact time to achieve ≥6 LR of B. anthracis. Lastly, overall, there were no significant differences in decontamination efficacy between the two species.
- Subjects :
- 0301 basic medicine
Atmospheric Science
Sanitization
Bacillus
Bacillus subtilis
010501 environmental sciences
Pathology and Laboratory Medicine
01 natural sciences
Endospore
chemistry.chemical_compound
Microbial Physiology
Medicine and Health Sciences
Public and Occupational Health
Food science
Bacterial Physiology
Materials
Decontamination
Spores, Bacterial
Multidisciplinary
biology
Virulence
Parts-per notation
Human decontamination
Bacillus anthracis
Bacterial Pathogens
Chemistry
Bacillus Subtilis
Infectious Diseases
Experimental Organism Systems
Medical Microbiology
Fumigation
Physical Sciences
Prokaryotic Models
Engineering and Technology
Medicine
Pathogens
Research Article
Ozone
Infectious Disease Control
Thermometers
Amorphous Solids
Science
030106 microbiology
Materials Science
Bacillus Anthracis
Equipment
Research and Analysis Methods
Microbiology
03 medical and health sciences
Greenhouse Gases
Meteorology
Species Specificity
Environmental Chemistry
Humans
Relative humidity
Bacterial Spores
Microbial Pathogens
Measurement Equipment
0105 earth and related environmental sciences
Bacteria
Construction Materials
Ecology and Environmental Sciences
Organisms
Biology and Life Sciences
Bacteriology
Humidity
biology.organism_classification
Spore
Health Care
Disinfection
chemistry
Atmospheric Chemistry
Earth Sciences
Animal Studies
Preventive Medicine
Glass
Disinfectants
Subjects
Details
- Language :
- English
- ISSN :
- 19326203
- Volume :
- 15
- Issue :
- 5
- Database :
- OpenAIRE
- Journal :
- PLoS ONE
- Accession number :
- edsair.doi.dedup.....bb9f1283c49f61692f3bbc0f0347d8db