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  • Keyword = 'homeland security’ AND ’indoor outdoor decontamination' NOT (presentation OR poster).
Records 1 to 25 of 510

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...
Emergency Response to Stormwater Contamination: A Framework for Containment and Treatment
(JOURNAL) [Published : Feb 15, 2021]
This paper presents a Stormwater Emergency Response Framework (SERF) for use in the containment and treatment of stormwater runoff following a hazardous material release. The framework consists of four high level process steps and a decision tree. These resources are intended to ...
Literature Search and Review for Sampling, Analysis, and Decontamination of Biological Warfare Agent-Contaminated Maritime Vessels
(PUBLISHED REPORT) [Published : Feb 25, 2021]
This report summarizes the current scientific literature on remediation-related activities associated with US Coast Guard vessels and other assets. It also provides descriptions of research gaps and needs for consideration by US Coast Guard and other federal agencies to improve o...
Characterizing cesium sorption in freshwater settings using fluvial sediments and characteristic water chemistries
(JOURNAL) [Published : Jan 01, 2020]
Cesium-137 (Cs-137) is a persistent contaminant that poses a significant risk to human health and the environment. Understanding the fate and transport of Cs-137 following a contamination incident is necessary for effective containment and remediation. In this study, we performed...
Comparison of surface sampling methods for an extended duration outdoor biological contamination study
(JOURNAL) [Published : Jun 24, 2020]
Bacillus anthracis, the causative agent for anthrax, is a dangerous pathogen to humans and has a history as a bioterrorism agent. While sampling methods have been developed and evaluated for characterizing and clearing contaminated indoor sites, the performance of these sampling ...
Compatibility of Electronic Equipment and Other Materials with Peracetic Acid Fog and Low Concentration Hydrogen Peroxide Vapor
(PUBLISHED REPORT) [Published : Aug 14, 2020]
The purpose of this study was to determine the impacts of PAA fog and LCHPV on representative indoor materials and electronic equipment. The fogging of PAA solution caused visually observed appearance changes (e.g., discoloration, oxidation, residue) on the copper, low-carbon ste...
Dispersion Modeling Systems Relevant to Homeland Security Preparedness and Response
(PUBLISHED REPORT) [Published : Oct 21, 2020]
Atmospheric dispersion modeling is one tool that can be used for effective emergency preparation or response from hazardous chemical, biological, radiological, nuclear, and explosive (CBRNe) releases, especially in urban areas where population densities are high and wind flow bec...
(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...
(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...
Functional categories of microbial toxicity resulting from three advanced oxidation process treatments during management and disposal of contaminated water
(JOURNAL) [Published : Jan 20, 2020]
Contaminated waters could contain harmful chemicals, which present management and disposal challenges. This study investigates three The results indicate that AOP pre-treatment can be a viable strategy to facilitate drain disposal of contaminated waters, but that eco-toxicit...
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.
Literature Search and Review for Sampling, Analysis, and Decontamination of Chemical Warfare Agent - Contaminated Maritime Vessels
(PUBLISHED REPORT) [Published : Dec 31, 2020]
The USCG protects and defends more than 100,000 miles of U.S. coastline and inland waterways. To this end, the USCG may be responsible for countering and responding to incidents involving weapons of mass destruction, including biological warfare agents (BWAs) and chemical warfare...
(PUBLISHED REPORT) [Published : Mar 18, 2020]
This is a final report for the project on Optimization of a Rapid Viability (RV) PCR Protocol for Detection of Francisella tularensis in water. During a tularemia bioterrorism incident or a natural outbreak, the water system can be contaminated. This pathogen survives for many da...
Physical and Chemical Removal Options for Porous/Permeable Materials Contaminated with a Persistent Chemical Warfare Agent XV
(PUBLISHED REPORT) [Published : May 21, 2020]
The results of this research will provide the EPA response community as well as other Federal, State, Tribal and Local agencies on tools to decontaminate porous materials in the indoor environment that are contaminated with CWAs. Report on bench-scale experimental evaluation of p...
Portable Mercury Detector Testing and Evaluation Report
(PUBLISHED REPORT) [Published : Jan 01, 2020]
Responding to an accident, fire, or deliberate chemical release can potentially expose first responders to harmful levels of toxic or corrosive chemicals. Additionally, following a contaminant release indoors, it is essential to protect the public health and provide a clearance ...
Remediating Indoor Pesticide Contamination from Improper Pest Control Treatments: Persistence and Decontamination Studies
(JOURNAL) [Published : Apr 21, 2020]
Under the U.S. Federal Insecticide, Fungicide, and Rodenticide Act (FIFRA), it is a violation to use a pesticide in a manner inconsistent with the product’s labeling (commonly referred to as pesticide misuse or misapplication). The improper and excessive use of pesticides in indo...
Summary of hydrogen peroxide vapor generation using off-the-shelf items and equipment for the disinfection of spaces and materials
(SUMMARY) [Published : Sep 29, 2020]
The tech brief also provides information on how these devices could be operated so that a sufficient dose of hydrogen peroxide vapor is generated for disinfection purposes.
Ten Questions Concerning the Implications of Carpet on Indoor Chemistry and Microbiology
(JOURNAL) [Published : Mar 01, 2020]
Carpet and rugs currently represent about half of the United States flooring market and offer many benefits as a flooring type. How carpets influence our exposure to both microorganisms and chemicals in indoor environments has important health implications, but is not well unders...
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...
Urban Wind Field Analysis from the Jack Rabbit II Special Sonic Anemometer Study
(JOURNAL) [Published : Dec 15, 2020]
The Jack Rabbit II Special Sonic Anemometer Study (JRII-S), a field project designed to examine the flow and turbulence within a systematically arranged mock-urban environment constructed from CONEX shipping containers, is described in detail. The study involved the deployment of...
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 Rinses and Their Impact on Decontamination Efficacies of Surfaces Contaminated with Chemical Warfare Agent Simulants
(PUBLISHED REPORT) [Published : Nov 30, 2020]
This report assesses the impact of pre- and post decontamination water rinses on the overall decontamination efficacy of a hydrogen peroxide-based decontamination product for the cleaning of clean or grimed surfaces that are contaminated with chemical warfare agent simulants. The...
2018 EPA International Decontamination Research and Development Conference
(SUMMARY) [Published : May 28, 2019]
On May 8-10, 2018, the U.S. Environmental Protection Agency’s (EPA’s) Office of Research and Development’s National Homeland Security Research Center (ORD/NHSRC) hosted the 10th U.S. EPA International Decontamination Research and Development Conference at the EPA facilities in Re...
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.
A case study of cesium sorption onto concrete materials and evaluation of wash agents: Implications for wide area recovery
(JOURNAL) [Published : Jun 01, 2019]
The sorption and desorption properties of radionuclides onto common building materials such as concrete are critical factors in the improvement of techniques for mitigating a release of nuclear or radiological material to the urban environment. A potential option for the early p...