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Wide-area remediation following a B. anthracis (Ba) spore release presents many issues including balancing the limited resources available with the need to characterize contamination, conduct decontamination, and management of post-decontamination waste. Capabilities and an opera...

Tracking the subsea oil plume during the 2010 Deepwater Horizon Oil Spill (DWH) was conducted using in situ fluorescence via vertical profilers (n=1,157) and discrete sample chemical analyses (n=7,665). During monitoring efforts, discrete samples provided a coarse picture of the ...

Tracking the subsea oil plume during the 2010 Deepwater Horizon Oil Spill (DWH) was conducted using in situ fluorescence via vertical profilers (n = 1157) and discrete sample chemical analyses (n = 7665). During monitoring efforts, discrete samples provided a coarse picture of th...

A large-scale release of a chemical, radiochemical, or biological (CBR) agent can result in wide-area contamination and would require significant time and resources for recovery. Several Environmental Protection Agency (EPA) Homeland Security Research Program (HSRP) decision supp...

This report addresses options to improve on the decontamination of permeable materials that are contaminated with a toxic chemical that has transferred into such material. Here, two surrogates of chemical warfare agents are considered to investigate the degree of transport, mater...

Presentation to attendees of the Operational Testing and Evaluation of Chemical Remediation Activities (OTECRA) visitor day&nbsp; describing the connection between the bench scale research and this full-scale test. The purpose of this field test is to test and evaluate EPA remedi...

Over the last year, ORD had been engaging with partners and planning future research.&nbsp;Historically, HSRP water decontamination research has focused on &ldquo;big&rdquo; utility infrastructure, but contamination events affect home and building plumbing too. Home and building ...

Photo-induced toxicity of petroleum products and polycyclic aromatic compounds (PACs) is the enhanced toxicity caused by their interaction with ultraviolet radiation and occurs by two distinct mechanisms: photosensitization and photomodification. Laboratory approaches for designi...

This technical brief provides decision makers with a practical summary of recent US EPA scientific information and data related to the technical challenges involved with remediating a fentanyl-contaminated indoor site. The research topics included in this summary are indoor build...

The U.S. Environmental Protections Agency (EPA) is responsible for responding to environmental contamination incidents that affect human health and the environment. These emergency response efforts will require sampling of a contaminated area until remediation is complete. Sampli...

Two underwater oil detection technologies have been developed: (1) A Remote Environmental Monitoring UnitS (REMUS-600) AUV equipped with fluorescence and backscatter SeaOWL UV-A (Oil-in-Water Locator; Sea-Bird Scientific WET Labs Inc.), holographic imager (HoloCam; SeaScan, Inc),...

This report addresses the application of low concentration hydrogen peroxide vapor for the remediation of surfaces contaminated with the persistent chemical warfare agents VX and sulfur mustard (HD) and the pesticide (and chemical warfare agent surrogate) malathion. A low concent...

New approach methods are being developed to address the challenges of reducing animal testing and assessing risks to the diversity of species in aquatic environments with minimal data. The toxicity-normalized species sensitivity distribution (SSDn) approach is a novel method for ...

States and localities are looking for ways to integrate climate resilience and environmental justice into how they prepare, respond, mitigate, and recover from disasters. These efforts require effective and inclusive engagement with many broad constituencies. The research present...

Chemical dispersant formulations typically provide maximum oil dispersion in waters between 30-40 ppt (parts per thousand) salt content, which encompasses typical ocean salinity (~34 ppt). As a result, most laboratory studies of oil dispersion effectiveness (DE) are conducted at ...

Derivation of a Predicted No Effect Concentration (PNEC) for aquatic systems is the primary deterministic form of hazard extrapolation used in environmental risk assessment. Depending on the breadth of taxonomic inclusion (algae, invertebrates, fish) and test data type (acute, ch...

This is the second data packet for this project that will be posted to the EPA website for COVID-19 research

&nbsp;In all, this presentation will familiarize the audience on the decision support tool&rsquo;s overall versatility and breadth to which it can support objectives, strategies, and tactics not only for nuclear and radiological releases, but also chemical and biological threat a...

The significant increase in illegal use of the synthetic opioid fentanyl is leading to unintentional overdose fatalities. Spills of fentanyl where it is abused or prepared for illegal distribution can result in persistent contamination of areas. Remediation can be attempted throu...

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...

Large-scale disasters have the potential to generate a significant amount of waste. For example, Hurricane Katrina and the Joplin Missouri tornado resulted in 100 million and 1.5 million cubic yards of waste, respectively. Man-made chemical, biological, radiological, or nuclear (...

HSRP performs applied research that delivers relevant and timely methods, tools, data, technologies, and technical expertise in support of federal, regional, state, tribal, water systems, and local community resilience. HSRP has engaged partners to identify the high priority home...

The ecological threshold of toxicological concern (ecoTTC) is analogous to traditional human health based TTCs but with derivation and application to ecological species. An ecoTTC is computed from the probability distribution of predicted no effect concentrations (PNECs) derived ...

The COVID-19 pandemic has highlighted the role that airborne transmission can play in the spread of disease. Consequently, there has been an increasing focus on technologies that claim to reduce or eliminate aerosolized pathogens in indoor occupied spaces. There are many differen...

Motivated by the COVID-19 pandemic, the United States Environmental Protection Agency (EPA) is conducting research to evaluate the efficacy of devices to inactivate SARS-CoV-2 on surfaces in addition or as an alternative to chemical-based disinfectants. Devices that emit ultravio...