Related Topics: Homeland Security Research

Homeland Security Research Products in the Science Inventory

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Records 1 to 25 of 124

2021
COVID-19 Research: PPE Disinfection for Reuse
(PRESENTATION) [Presented : Apr 29, 2021]
The overall goal of this project is to provide the general public, emergency responders, and healthcare workers with initial information on the effectiveness of selected disinfection/cleaning technologies and commercial off-the-shelf (COTS) products for the disinfection/cleaning ...
COVID-19: UVC Devices and Methods for Surface Disinfection
(PRESENTATION) [Presented : Jan 21, 2021]
This presentation summarizes the results of lab studies on the inactivation of UVC light against SARS-CoV-2 and two surrogate viruses as well as results from a field study in collaboration with LA Metro that measured UVC doses at various locations in a metro car outfitted with UV...
Decontamination of soil contaminated at the surface with Bacillus anthracis spores using dry thermal treatment
(JOURNAL) [Published : Feb 15, 2021]
In the event of a wide-area release of Bacillus anthracis spores, soils and other outdoor materials may become contaminated with the biological agent. A study was conducted to assess the in-situ remediation of soil using a dry thermal treatment approach to inactivate a B. anthrac...
Differences in the Inactivation of Legionella pneumophila Serogroups Using UV-C LED Technology in Drinking Water
(PRESENTATION) [Presented : Jun 08, 2021]
This presentation will discuss results from Legionella pneumophila inactivation experiments using UV light emitting diodes (LEDs) as an emerging water treatment technology to control risks from various water-based pathogens.
Persistence and decontamination of wastewater sewer infrastructure following a biological or radiological contamination
(SUMMARY) [Published : May 26, 2021]
This tech brief will summaize the available information on the persistence of biological and radiological agents on wastewater (collection system) infrastructure and decontamination information (if available). It will also summarize data on the fate of radionulcides in wastewater...
Surface Disinfection by UVC? Bench Scale Study and Field Implementation Considerations
(PRESENTATION) [Presented : Apr 27, 2021]
Presentation to the International Ultraviolet Association on the UV disinfection rserach agaisnt SARS-CoV-2 virus on relevant surfaces
2020
EVALUATING THE ENVIRONMENTAL PERSISTENCE AND INACTIVATION OF MS2 BACTERIOPHAGE AND THE PRESUMED EBOLA VIRUS SURROGATE PHI6 USING LOW CONCENTRATION HYDROGEN PEROXIDE VAPOR
(JOURNAL) [Published : Mar 17, 2020]
The phages were inoculated onto six material types (both porous and nonporous), with and without the presence of human whole blood. The inoculated materials were then exposed to either a high or low concentration of HPV, and the phages were recovered from the materials at several...
EVALUATION OF ALTERED ENVIRONMENTAL CONDITIONS AS A DECONTAMINATION APPROACH FOR NONSPORE-FORMING BIOLOGICAL AGENTS
(JOURNAL) [Published : Apr 01, 2020]
The purpose of this study was to evaluate the effects of altered environmental conditions on the persistence of Francisella tularensis bacteria and Venezuelan Equine Encephalitis virus, on two material types. Results from this study provide information for inactivation of non-spo...
Evaluating the efficacy of Cu and Ag ions for the inactivation of Legionella pneumophila
(PRESENTATION) [Presented : Sep 25, 2020]
Legionella pneumophila (Lp ) is an opportunistic pathogen that can colonize premise plumbing systems. These systems can serve as a potential source of human infection resulting from the inhalation of contaminated aerosols generated from various devices such as showers, humidifier...
Evaluation of Disinfection Methods for Personal Protective Equipment (PPE) Items Intended for Reuse
(PRESENTATION) [Presented : Nov 09, 2020]
The overall goal of this project is to provide the general public, emergency responders, and healthcare workers with initial information on the effectiveness of selected disinfection/cleaning technologies and commercial off-the-shelf (COTS) products for the disinfection/cleaning ...
Inactivation of Bacillus anthracis and Bacillus atrophaeus Spores on Surfaces with Ultraviolet Light Produced Via Either Light Emitting Diodes or a Low-Pressure Mercury Vapor Lamp
(JOURNAL) [Published : Jul 21, 2020]
Journal article; Aims: To obtain data on the efficacy of two ultraviolet light (UVC) technologies for inactivation of Bacillus anthracis Ames and Bacillus atrophaeus spores on surfaces.
Personnel Decontamination Line Sprayer Options for Biological Contamination Incident Response
(SUMMARY) [Published : Oct 20, 2020]
Following a bioterrorism event, an incident or unified command would be established, the impacted area would be characterized, and response work zones set up based on the extent of indoor/outdoor contamination. The personnel decontamination (decon) line, established in the contam...
The Use of Ozone Gas for the Inactivation of Bacillus anthracis and Bacillus subtilis Spores on Building Materials
(JOURNAL) [Published : May 21, 2020]
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 g...
Washing/Drying of Clothing Contaminated with a Biological Agent Such as Bacillus anthracis
(PUBLISHED REPORT) [Published : Sep 30, 2020]
The study was conducted in four phases, each using viable spores of Bacillus atrophaeus var. globigii (Bg), a surrogate for Ba. Phase I and II were part of a bench-scale study using a Lab Line Incubator-Orbital Shaker to simulate a washing machine. The experiment was conducted us...
Water-On-Wheels (WOW) Mobile Emergency Water Treatment System Cart - User Manual
(PUBLISHED REPORT) [Published : Jun 30, 2020]
Treatment Train: •Up to 10 gallons per minute •Pre-filtration to reduce turbidity and improve disinfection •Two media filtration/adsorption tanks for targeted chemical or radiological contaminant removal (e.g. Granular Activated Carbon or Ion Exchange) •UV LED for additional ...
2019
A Bench-Scale Procedure for Evaluating Chlorine Bleach Inactivation of Bacillus Spores in Wash Water from a Cleanup of a Site with Biothreat Agents
(PUBLISHED REPORT) [Published : May 02, 2019]
This report describes a streamlined bench scale procedure which has been developed for testing the efficacy of chlorine bleach for the inactivation of Bacillus spores in wash water originating from a cleanup of a site contaminated with Bacillus anthracis spores.
Clustering, Morphology, and Treatment Resistance of Bacillus Globigii Spores Recovered from a Pilot-Scale Activated Sludge System
(JOURNAL) [Published : Dec 01, 2019]
This paper reviews technologies studied for radiological contaminants. In addition to nuclear facility decommissioning, nuclear power plant accidents at Chernobyl (Former Soviet Union), Fukushima (Japan) and elsewhere have provided real world situations to both develop and test t...
Inactivation of Bacillus anthracis Spores on Surfaces with Ultraviolet Light Produced with a Low Pressure Mercury Lamp or Light Emitting Diodes
(PRESENTATION) [Presented : Dec 12, 2019]
This Presentation Aims: To obtain quantitative efficacy data of two ultraviolet light (UVC) technologies for surface inactivation of Bacillus anthracis Ames and Bacillus atrophaeus spores.
Low‐concentration hydrogen peroxide decontamination for Bacillus spore contamination in buildings
(JOURNAL) [Published : Dec 03, 2019]
This study extends laboratory findings to a field‐level evaluation using commercial off‐the‐shelf (COTS) humidifiers and 3% liquid hydrogen peroxide vapor.
Review of Decontamination Techniques for the Inactivation of Bacillus anthracis and Other Spore-Forming Bacteria Associated with Building or Outdoor Materials
(JOURNAL) [Published : Mar 22, 2019]
Although the military has been developing decontamination methods for their purposes for decades, research conducted or funded by nondefense government agencies with a focus on the decontamination of civilian facilities had been minimal prior to 2001. That changed following the i...
2018
Decontamination Options for Restoring Subway Systems following a Bacillus anthracis Contamination Incident
(SUMMARY) [Published : Oct 23, 2018]
This technical brief reviews the bench-, pilot-, and field-scale decontamination research conducted by EPA under the Underground Transport Restoration (UTR) project. This summarizes the findings most applicable for operational use in decontamination methods for railcar and relate...
Decontamination of Materials Contaminated with Spores of Bacillus anthracis Ames and Vollum Strains Using Low Levels of Hydrogen Peroxide Vapor
(PUBLISHED REPORT) [Published : Sep 19, 2018]
Report on the decontamination efficacy of low levels of hydrogen peroxide vapor (HPV) was evaluated on common building materials (glass, bare pine wood, carpet, painted wallboard paper, unpainted concrete, and ceiling tile) contaminated with Ba spores.
Effectiveness of Outdoor Environment Decontamination for Biological Agents
(SUMMARY) [Published : Oct 02, 2018]
This technical brief reports the results of two recent studies that aimed to increase our understanding and capabilities with regards to decontamination of outdoor areas following a biological incident. These data help responders develop remediation plans following outdoor contam...
Evaluation of the Removal and Inactivation of Bacterial Spores on Outdoor Surfaces Using a Small-Scale Street Sweeper
(PUBLISHED REPORT) [Published : Sep 20, 2018]
Historically, street sweeping primarily has been conducted to remove the regular buildup of litter and trash along urban streets. Recent developments in sweeper technology, such as regenerative sweepers and “dustless sweepers”, enable municipalities and transportation departments...
Exposure Pathways to High-Consequence Pathogens in the Wastewater Collection and Treatment Systems
(PUBLISHED REPORT) [Published : Aug 01, 2018]
Report--Provides information and a screening tool to perform an exposure assessment for emerging pathogens in wastewater systems