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Evaluation of cold weather decontamination methods
Jana Kesavan1, Daniel McGrady2, Melissa L Sweat3
1Research Physicist, US Army Combat Capabilities Development Command Chemical Biological Center, Research & Technology Directorate, Aberdeen Proving Ground, Maryland.
American Journal of Disaster Medicine
|August 1, 2022
Summary
In cold weather, vacuuming and blotting are less effective for bacterial decontamination. Wiping and adhesive tape methods show better results for surface cleaning in freezing conditions.
Area of Science:
- Microbiology
- Environmental Science
- Chemical Engineering
Background:
- Traditional decontamination methods often rely on water, limiting their use in specific environments.
- Cold weather poses challenges for water-based decontamination due to freezing risks.
Purpose of the Study:
- To identify and evaluate common, readily available decontamination methods for cold weather conditions.
- To assess the efficacy of different techniques in removing bacteria from surfaces in freezing environments.
Main Methods:
- Evaluated methods included dry wiping, wet wiping, moist wiping with blotting, vacuuming, and adhesive tape application/removal.
- Bacterial removal efficacy was assessed across various surfaces under cold conditions.
Main Results:
- Vacuuming and blotting (without overlapping areas) demonstrated lower efficacy in removing bacteria.
- Wiping techniques and adhesive tape removal were found to be more effective for bacterial decontamination.
Conclusions:
- Standard wiping and adhesive tape methods are preferable to vacuuming or simple blotting for cold-weather decontamination.
- Effective decontamination strategies are crucial for operational environments where water is not feasible.
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