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- Keyword = 'dirty bomb' OR cesium OR 'RDD' OR 'radiological dispersal device' OR 'radiological dispersion device'.
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25
of 186
2023
General filtration bed design for water contaminated with radioactive cesium
(SUMMARY) [Published : Feb 21, 2023]
(SUMMARY) [Published : Feb 21, 2023]
The timely decontamination of high-density urban areas is critical in the face of a terror event involving radioactive cesium (Cs), which has a 30- year half-life with an energetic 662 keV gamma ray released during decay. This technical brief is intended for local, state and fede...
Impact of model structure on radionuclide transport in urban stormwater
(JOURNAL) [Published : Feb 01, 2023]
(JOURNAL) [Published : Feb 01, 2023]
This paper compared simulation results from different model constructions of a Storm Water Management Model (SWMM) after radiological contamination from a hypothetical dirty bomb scenario. The model constructions included a utility-provided combined sewer stormwater model, a high...
2022
July 27, 2022 Radiological Stormwater Modeling Workshop: Modeling Checklist, Workshop Notes & Materials
(PUBLISHED REPORT) [Published : Jul 27, 2022]
(PUBLISHED REPORT) [Published : Jul 27, 2022]
The spread of radiological contamination from rainfall events is well documented from both the Chernobyl and Fukushima nuclear disasters. However, the inclusion of stormwater modeling into local, state, and federal response planning and response is limited. The goal and purpose o...
Limiting Wind-Induced Resuspension of Radioactively Contaminated Particles to Enhance First Responder, Early Phase Worker and Public Safety—Part 1
(JOURNAL) [Published : Feb 26, 2022]
(JOURNAL) [Published : Feb 26, 2022]
An accidental radiological release or the operation of a radiological dispersal device (RDD) may lead to the contamination of a large area. Such scenarios may lead to health and safety risks associated with the resuspension of contaminated particles due to aeolian (wind-induced) ...
Modeling radionuclide transport in urban overland flow: A case study
(JOURNAL) [Published : Jan 26, 2022]
(JOURNAL) [Published : Jan 26, 2022]
This paper presents the process used to develop an overland flow model of radionuclide transport following an aerosol deposition from a hypothetical radiological dispersal device explosion. The process included the integration of digital elevation, building, and land cover inform...
Part 2: Stabilization/Containment of Radiological Particle Contamination to Enhance First Responder, Early Phase Worker, and Public Safety
(JOURNAL) [Published : Apr 11, 2022]
(JOURNAL) [Published : Apr 11, 2022]
During the immediate, emergency phase of a response to a radiological dispersal device (RDD), an improvised nuclear device (IND), or accidental radiological release, emergency responders may be exposed to radioactivity due to inhalation and direct contact. It is important to mini...
Potential Waste Minimization Activities Following a Wide-Area Radiological Release - Poster
(PRESENTATION) [Presented : Mar 10, 2022]
(PRESENTATION) [Presented : Mar 10, 2022]
Management of waste from radiological incidents is complicated by the fact that decontamination decisions have a profound impact on the characteristics of resulting waste streams. Wide-area radiological incidents could produce massive quantities of waste that might need to be tre...
Radiological Stormwater Modeling Table-Top Workshop
(PRESENTATION) [Presented : Jul 27, 2022]
(PRESENTATION) [Presented : Jul 27, 2022]
These slides are for the U.S. EPA’s Homeland Security Research Program 1-day virtual radiological stormwater modeling workshop. The workshop is sponsored by the DHS’s National Urban Security Technology Laboratory and co-organized with the DOE’s Argonne National Laboratory. Durin...
Report for Assessment of Nondestructive Decontamination Methodologies for Contaminated Roofing Material Surfaces
(PUBLISHED REPORT) [Published : Aug 01, 2022]
(PUBLISHED REPORT) [Published : Aug 01, 2022]
This report summarizes results of research conducted to determine the decontamination efficacy of Stripcoat TLC Free (Stripcoat), DeconGel 1108 (DeconGel 1108), Argonne SuperGel (ASG), Rad-Release II (RRII), Quick Decon Mass Effect Solution (QDS), DeconGel 1128 (DeconGel 1128), a...
Stormwater Modeling Response to a Wide Area Radiological Dispersal Device Incident
(SUMMARY) [Published : Sep 30, 2022]
(SUMMARY) [Published : Sep 30, 2022]
Managing the response to urban radiological terrorism requires advanced planning and rapid response to minimize health risks to residents and mitigate long-term impacts to municipal infrastructure and the environment. A radiologic dispersal device can result in a widespread...
2021
10 years Efforts for Remediation of offsite areas affected by the Fukushima Daiichi Accident
(PRESENTATION) [Presented : Apr 14, 2021]
(PRESENTATION) [Presented : Apr 14, 2021]
March 11th marked the 10-year anniversary of the accident at the Fukushima Daiichi Nuclear Power Plant in Japan which was caused by an initial earthquake and subsequent tsunami. This was the most significant accident at a nuclear power plant since the Chernobyl disaster in 1986. ...
Decontamination of urban surfaces contaminated with radioactive materials and consequent onsite recycling of the waste water
(JOURNAL) [Published : Feb 04, 2021]
(JOURNAL) [Published : Feb 04, 2021]
Enhancing rapid remediation strategies is paramount for recovery after a large-scale nuclear contamination event in an urban environment. Some current strategies recommend use of readily available equipment, materials, and facilities to expedite recovery. For example, applying pr...
Penetration of Fission Product Ions into Complex Solids and the Effect of Ionic Wash Methods
(JOURNAL) [Published : Feb 01, 2021]
(JOURNAL) [Published : Feb 01, 2021]
This Journal Article illustrates that a wash penalty factor concept—defined as ratio of the depth at which 50% of the radioactivity is found in the washed sample divided by the depth at which 50% of radioactivity is found in the control—can serve as a way to quantify whether the ...
Persistence of Biological and Radiological Contaminants on Wastewater Collection System Infrastructure
(SUMMARY) [Published : May 26, 2021]
(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...
Persistence of Surrogate Radionuclides on Wastewater Collection System Infrastructure
(PUBLISHED REPORT) [Published : Mar 31, 2021]
(PUBLISHED REPORT) [Published : Mar 31, 2021]
EPA Report; Results for cesium and cobalt showed that metal adhesion to conditioned infrastructure materials was undetectable. Strontium was detected on concrete coupons at levels above the method detection limit. However, further analyses of the concrete suggested that stront...
Predicting wildfire particulate matter and hypothetical re-emission of radiological Cs-137 contamination incidents
(JOURNAL) [Published : Nov 15, 2021]
(JOURNAL) [Published : Nov 15, 2021]
Radiological release incidents can potentially contaminate wide areas with radiological materials and decontamination efforts are typically focused on populated areas leaving radionuclides in forested areas for long periods of time. Large wildfires in contaminated forested areas ...
Selecting Readily Available Equipment for Wide Area Response and Recovery. RRLT: an intelligent tool for radiological incidents
(PRESENTATION) [Presented : May 19, 2021]
(PRESENTATION) [Presented : May 19, 2021]
Through an intelligent software wizard, the RRLT helps the user understand what types of equipment might be available to accomplish general and specific recovery mission activities based on environmental and operational constraints. The purpose of the RRLT is to increase the resi...
Stabilization/Containment of RDD/IND Particle Contamination to Enhance First Responder, Early Phase Worker, and Public Safety
(PRESENTATION) [Presented : Nov 05, 2021]
(PRESENTATION) [Presented : Nov 05, 2021]
In the event of large-scale radioactive contamination, whether from accidental dissemination or intentional dispersion from a radiological dispersive device (RDD) or improvised nuclear detonation (IND), remediation will follow. It is desirable to minimize resuspension and trackin...
2020
Characterizing cesium sorption in freshwater settings using fluvial sediments and characteristic water chemistries
(JOURNAL) [Published : Jan 01, 2020]
(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...
Detain H20 Detention Basin Retrofit Device
(SUMMARY) [Published : May 20, 2020]
(SUMMARY) [Published : May 20, 2020]
Bench-scale, pilot-scale, and field-scale tests were performed to evaluate the function of two innovative outfall retrofit devices that can be quickly deployed to control stormwater contamination events within existing detention basin structures. The devices were designed to impr...
Radiological Recovery Logistics Tool – 20161
(PAPER IN NON-EPA PROCEEDINGS) [Published : Mar 12, 2020]
(PAPER IN NON-EPA PROCEEDINGS) [Published : Mar 12, 2020]
The study reported in this paper has both factored fundamental concepts and connections out of this identification process and created a Knowledge Base detailing support goals, response scenarios, and efficacy information on dozens of equipment types. In short, RRLT will dynamica...
Radiological Recovery Logistics Tool (RRLT)
(PRESENTATION) [Presented : Mar 12, 2020]
(PRESENTATION) [Presented : Mar 12, 2020]
One essential requirement is for RRLT to support the efficient and appropriate allocation of resources for a radiological response. Subsequent discussions between ANL and stakeholders have solidified the nature of this support to include identification of the types of resources t...
Report for Assessment of Non-Destructive Decontamination Methodologies for Mixed Porous Surfaces: Aging of Technology under High Humidity and UV Conditions
(PUBLISHED REPORT) [Published : Jun 30, 2020]
(PUBLISHED REPORT) [Published : Jun 30, 2020]
Report: Evaluation of the performance of Strip coat and DeconGel under controlled elevated temperature (T), relative humidity (RH), and ultra-violet (UV) light conditions. The research included observation of the operational removal of the strippable coatings as well as determina...
Review of Decontamination Progress Surveying Technologies for Wide-Area Radiological Contamination
(PUBLISHED REPORT) [Published : Sep 30, 2020]
(PUBLISHED REPORT) [Published : Sep 30, 2020]
The continuing threat of terrorist attacks against the United States has provided great impetus for the development of methods and technologies that can be utilized to detect and interdict terrorist threats, and to effectively respond to and recover from terrorist attacks. One of...
The Effects of Contaminant Aging on Decontamination Efficacy for Rapid Remediation of Concrete Surfaces – 20412
(PAPER IN NON-EPA PROCEEDINGS) [Published : Mar 12, 2020]
(PAPER IN NON-EPA PROCEEDINGS) [Published : Mar 12, 2020]
In this work, we evaluated the decontamination efficacy of two decontamination methods on concrete samples contaminated with soluble cesium-137 (Cs-137) and silica particles with 0.5-μm and 2-μm diameters.