Related Topics: Homeland Security Research

Homeland Security Research Products in the Science Inventory

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Records with

  • Organization = [ORD-NHSRC]
  • Keyword = 'indoor outdoor decontamination'.
Records 26 to 50 of 517

2018
Alternative Fast Analysis Method for Cellulose Sponge Surface Sampling Wipes with Low Concentrations of Bacillus Spores
(JOURNAL) [Published : Nov 16, 2018]
Environmental sampling is a critical component of the post decontamination verification process following a bioterrorism event. This journal article describes work performed to produce a less labor-intensive method for processing cellulose sponge-wipes used for sampling areas pot...
Best Practices to Minimize Laboratory Resources for Waste Characterization During a Wide-Area Release of Chemical Warfare Agents
(PUBLISHED REPORT) [Published : Sep 13, 2018]
The report is intended to be applicable to consequence management activities that EPA will be involved with and will require waste characterization. This best practices document is intended to be general and all-hazards in nature, applicable to a multitude of settings, and to pro...
Bleach-Based Biodecontamination of Subway Materials
(PUBLISHED REPORT) [Published : Oct 02, 2018]
This report discusses results from a bench scale study that investigated the impact of dirt and grime on pH amended bleach and diluted bleach decontamination efficacy as commonly encountered on relevant subway rolling stock and subway infrastructure surface materials, including t...
Cesium Emissions from Laboratory Fires
(JOURNAL) [Published : Jun 28, 2018]
This journal article studied the partitioning of Cs between airborne particulate and residual ash from burning Cs-contaminated vegetation as a function of particle size distribution (PSD), and to correlate Cs emissions with carbon-containing compounds and combustion efficiency.
DeconST
(PRESENTATION) [Presented : Apr 25, 2018]
Presentation
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.
Design of Ad Hoc Filtration Beds for Treating Contaminated Waste Waters Final
(PAPER IN NON-EPA PROCEEDINGS) [Published : Mar 27, 2018]
Sensitivity analyses on the system parameters revealed simple relationships between the bed design and the expected breakthrough of cesium, allowing us to generate a concise set of look-up tables to aid the early responders.
Development of Laboratory Equipment and protocols for the Assessment of Rain, Water Wash-Down, and Channelized Flow for Removal of Spores on Urban Surfaces
(PUBLISHED REPORT) [Published : Nov 07, 2018]
A large-scale outdoor biological disaster requires a better understanding of how rainfall and water-based decontamination measures would transport contaminants. Over the last few years, the United States Environmental Protection Agency’s (EPA’s) Homeland Security Research Program...
Effects of Aging and Decontamination Pressure on the Penetration of Radionuclides into Concrete
(PAPER IN NON-EPA PROCEEDINGS) [Published : Mar 22, 2018]
This study aims to understand the effect of the rapid decontamination methods of high pressure washing and washing with salt additives on the penetration of radionuclides into concrete. To this end, we first identified how penetration profiles of Cs-137, Sr-85, and Eu-152 evolve ...
Evaluation of Diperadipic Acid as a Surface Decontaminant for Spore-Forming Biological Agents
(PUBLISHED REPORT) [Published : Jul 31, 2018]
This report chronicles the study undertaken to evaluate the decontamination efficacy of diperadipic acid, under application conditions that were found to be effective for pH-adjusted bleach (a common sporicidal liquid). The results showed that diperadipic acid demonstrated >6 Lo...
Evaluation of Electrostatic Sprayers for Use in a Personnel Decontamination Line Protocol for Biological Contamination Incident Response Operations
(PUBLISHED REPORT) [Published : Oct 09, 2018]
Personnel decontamination is an integral part of any emergency response. This report discusses a decontamination project that evaluated the decontamination efficacy and physical migration (transport) of Bacillus spores and operational efficiency of two types of sprayer technologi...
Evaluation of Liquid-, Foam-, and Gel-Based Decontaminants Report
(PUBLISHED REPORT) [Published : Sep 24, 2018]
This report focus for fixed site surface decontamination and cleanup, two distinct options among liquid disinfectants include pH-adjusted bleach (pAB) and Spor-Klenz® (S-K; per-acetic/peroxide formulations). Efficacy of these two sterilants in lab-scale studies has been well-docu...
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...
Hot Spot Calculator to Optimize Radiological Cleanup Decisions
(PUBLISHED REPORT) [Published : May 15, 2018]
Model/Guide
Influence of environmental conditions on the attenuation of ricin toxin on surfaces
(JOURNAL) [Published : Aug 08, 2018]
Ricin is a highly-toxic compound derived from castor plant beans. Several incidents involving contamination of structures due to ricin production or dissemination have occurred in recent years. The goal of this study was to determine whether ricin bioactivity could be attenuated ...
Joint USGS/USEPA Pathogens in Soils Collaboration Project and Website
(PRESENTATION) [Presented : May 10, 2018]
Poster -To elucidate the prevalence of naturally occurring B.anthracis, USEPA NHSRC scientists teamed with scientists from the USGS Mineral Resources Program scientist to analyze soil samples from 4,770 sites as part of the North American Soil Geochemical Landscapes Project. USEP...
Mass Imbalances in EPANET Water-quality Simulations
(JOURNAL) [Published : Apr 06, 2018]
This journal article examines EPANET, which is widely employed to simulate water quality in water distribution systems. However, the time-driven simulation approach used to determine concentrations of water-quality constituents provides accurate results, in general, only for smal...
MicroSAP: Tool for Developing Microbiological Sampling and Analysis Plans
(PRESENTATION) [Presented : May 10, 2018]
Poster - EPA’s Homeland Security Research Program is collaborating both across the agency (with several regions and offices) and outside the agency to develop an online tool, the MicroSAP, which aims to assist users with development of Sampling and Analysis Plans (SAPs). The tool...
Municipal and commercial equipment for radiological response and recovery in an urban environment: state of science, research needs, and evaluation of implementation towards critical infrastructure resilience
(PUBLISHED REPORT) [Published : May 01, 2018]
During the immediate, emergency phase of a response, it will be impossible to initiate activities other than establishing life-saving operations and securing a site for the safety of the public and first responders. This report contains a comprehensive list of proposed equipment ...
Plastic Scintillation Fibers for Radiological Contamination Surveys
(PUBLISHED REPORT) [Published : Mar 28, 2018]
Report
QR Code Reading System
(PUBLISHED REPORT) [Published : Jan 30, 2018]
The QR Code Reading System is a Python based script developed to recognize and record data and time associated with QR codes using web cameras. This code was originally developed to support timekeeping efforts during the Underground Transportation Restoration (UTR) Operational Te...
Reaerosolization of Bacillus anthracis Spores by Low-Technology Remediation Methods when Utilized in a Contaminated Indoor Environment
(PUBLISHED REPORT) [Published : Oct 24, 2018]
In the event of a release of a biological agent in an urban area, a wide range of surfaces may be contaminated, including indoor surfaces in homes and businesses. This research was conducted to identify and evaluate low-technology (low-tech) remediation methods that could be used...