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Summary of the research investigating the fate of pesticides on porous surfaces, including the transport into permeable paint or sealant and porous sublayers. The mis- or overuse of pesticides continues to occur across the USA in relation to the bed bug epidemic. The fate and tra...

A precipitation event’s drop size distribution (DSD) is a key characteristic and plays a critical role in quantitative precipitation estimation. In this study, DSD measurements were collected by a Parsivel2 disdrometer in Elizabeth City, North Carolina, U.S. from October 20...

EPA is developing approaches to inform the derivation of a Maximum Contaminant Level Goal (MCLG) for perchlorate in drinking water under the Safe Drinking Water Act. EPA previously conducted an independent, external, scientific peer review of the draft biologically-based dose-res...

EPA is developing a regulation for perchlorate in drinking water. As part the regulatory process EPA must develop a Maximum Contaminant Level Goal (MCLG). FDA and EPA scientists developed a biologically based dose-response (BBDR) model to assist in deriving the MCLG. This mode...

Many aqueous film forming foam (AFFF) delivery systems in aircraft hangars and firefighting vehicles may require thorough cleaning to avoid ongoing environmental impacts from residual per- and polyfluoroalkyl substances (PFAS) within those systems. Though replacement AFFF formula...

Many aqueous film forming foam (AFFF) delivery systems in aircraft hangars and firefighting vehicles may require thorough cleaning to avoid ongoing environmental impacts from residual per- and polyfluoroalkyl substances (PFAS) within those systems. Though replacement AFFF formula...

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 (...

The Ecological Risk Assessment Support Center (ERASC) announced the release of the final document, <em>Summary Report. Separating Anthropogenic Metals Contamination from Background: A Critical Review of Geochemical Evaluations and Proposal of Alternative Methodology</em>. Meaning...

The Equitable Resilience Builder (ERB) is a newly released tool to support community resilience planning. ERB is a downloadable application that supports communities in strengthening resilience to disasters and climate change. It walks a core team of users through a guided proces...

Microplastics are ubiquitous in the environment and present potential adverse effects on human and environmental health. EPA's Office of Research and Development is interested in developing sampling and analytical methods for microplastic detection, investigating their effects on...

Ricin is a highly toxic protein, capable of inhibiting protein synthesis within cells, and is produced from the beans of the Ricinus communis (castor bean) plant. Numerous recent incidents involving ricin have occurred, many in the form of mailed letters resulting in both buildin...

This study characterized Bacillus globigii (BG) as a Bacillus anthracis Sterne (BAS) surrogate for wastewater treatment-related studies of UV inactivation, adsorption onto powdered activated carbon (PAC), and bioaerosol emission. The inactivation of BG was faster than that of BAS...

Industrial and waste management facilities can emit air pollutants and odorous compounds from fugitive leaks, process malfunctions, and area sources that are difficult to predict, quantify, and manage. These sources can produce a range of environmental and life quality impacts an...

Extensive research in recent years has reported higher per- and polyfluoroalkyl substance (PFAS) concentrations in municipal solid waste (MSW) landfill leachate than other municipal wastewaters, including multiple studies of leachate from MSW landfills in the United States. Becau...

This presentation was developed to provide background and insights on ORD's research related to Tucson International Airport Area (TIAA) Superfund Site. The focus of ORD's research at this site currently is on treatment options for spent media used to treat groundwater impacted b...

The U.S. Environmental Protection Agency&rsquo;s (EPA) Superfund program is responsible for the assessment, cleanup, and reuse of some of the most contaminated sites in the United States. The primary goal of the Superfund program is to protect human health and the environment; th...

This presentation will cover recent research on nutrient inputs, agricultural management and nitrate concentrations in soil solution and groundwater in the southern Willamette Basin&rsquo;s Groundwater Management Area (GWMA).&nbsp;Non-point sources are the predominant inputs of n...

A substantial fraction of nitrogen (N) fertilizer applied in agricultural systems is notincorporated into crops and moves below the rooting zone as nitrate (NO3&minus;). Under-standing mechanisms for soil N retention below the rooting zone and leaching togroundwater is essential ...

This presentation will examine how serious games are being used to enhance the US Environmental Protection Agency&rsquo;s (US EPA&rsquo;s) emergency response mission, by improving the ability of the emergency response community to quickly and effectively respond to a range of env...

Should biosolids be contaminated with an intentional malicious release or natural outbreak of Bacillus anthracis spores, a water resource recovery facility (WRRF) may need to consider if their treatment processes can sufficiently inactivate this pathogen. Three methods commonly e...

Disaster debris removal is essential for community recovery and resilience. However, it&nbsp;is a lengthy, costly, and logistically challenging part of response and recovery operations. Managing waste in a disaster situation requires the coordination of multiple&nbsp;entities at ...

For many coastal areas around the Puget Sound, the interplay between weather, surface water, soils, evapotranspiration and groundwater flows is critical to modeling stream flow and predicting quantity and timing of flows under climate change. In this presentation, we introduce an...

The Sample Collection Plan (SCP) Template Tool for Addressing Radiochemical Analytes in Environmental Matrices is intended to provide a “ready-to-go” outline for creating a SCP in EPA-report format. The Tool provides a general description of the types of information and sections ...

Bacillus anthracis, the causative agent of inhalation anthrax, is one of the most highly studied biological threat agents. Significant gaps remain related to the remediation of a wide area following such biological release. This extends to the remediation of critical assets owned...

EPA has conducted prior decontamination research for traditional CWAs, but there is a scientific data gap for decontamination technologies capable of remediating sensitive equipment contaminated with a Fourth Generation Agent (FGA). The purpose of this project was to evaluate the...