Office of Research and Development Publications

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Microplastic contamination raises concerns in drinking water quality due to difficulties in removing them during treatment and potential for contaminant leaching. EPA&rsquo;s Office of Research and Development is interested in developing sampling and analytical methods for microp...

Marine mesoscale studies with sandworms (Alitta virens) were conducted to isolate important processes governing the exposure and bioaccumulation of polychlorinated biphenyls (PCBs) at contaminated sediment sites.&nbsp;Ex situ&nbsp;equilibrium sampling with silicone-coated jars, a...

PFAS are ubiquitous, persistent, and bioaccumulate in the environment. Thermal treatment methods are currently applied to a variety of PFAS-containing materials, including sewage sludge and granular activated carbon (GAC), but may not be sufficient to fully mineralize organic flu...

The U.S. Environmental Protection Agency’s (U.S. EPA) Office of Research and Development (ORD) recognized the need to develop an approach to study non-chemical stressors within a chemical stressor paradigm. Research is needed to identify which non-chemical stressors are likely to...

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...

Genomic biomarkers have the potential to reduce the need for conventional rodent cancer bioassays when used in a weight-of-evidence manner together with other classical and mechanistic information from shorter term studies. In a cross-sector initiative, our goal is to develop gen...

The US EPA wrote the New Approach Methods Work Plan in 2021 to 1. Develop NAMs to address information gaps, 2. Engage and communicate with stakeholders, 3. Establish scientific confidence and demonstrate application, 4. Develop baselines and metrics, and 5. Evaluate regulatory fl...

This is a presentation to Air Resource Advisors (ARAs) affiliated with the Interagency Wildland Fire Air Quality Response Program (IWFAQRP). ARAs are technical specialists who are deployed to wildfire incidents to provide smoke monitoring, modeling, and communications support. Th...

The fugitive emissions of volatile organic compounds (VOCs) from industrial processes are currently managed through in-person leak detection and repair (LDAR) efforts that are costly and occur periodically. These emissions are not rigorously accounted for in current emissions inv...

This is a presentation to the Water Treatment Interagency Working Group and is a summary of EPA/ORDs water sensor research effort, focusing on drinking water applications.&nbsp;

Reliable and comprehensive PFAS and PFAS-related emission measurement methods are needed for multiple purposes with some in use. Efficacy of combustion and non-combustion applications is important for all media and waste types with encouraging results and laboratory tests continu...

Residential wood and pellet stoves produce smoke that contains multiple pollutants such as particulate matter (PM), volatile organic compounds (VOCs), and a plethora of other hazardous air pollutants (HAPs) that can contribute to poor air quality. VOCs from residential wood combu...

Perfluorooctanoic acid (PFOA) and perfluorooctanoic sulfonic acid (PFOS) are two legacy per- and polyfluoroalkyl substance (PFAS). PFAS have been widely used in the past and commonly measured at various concentrations in many wastes and environmental media. Thermal treatment tech...

Video showing drone based emission sampling from different types of in-situ oil burn techniques.&nbsp;

U.S. EPA released two free tools to help users visualize their air data. REal TIme Geospatial Data Viewer (RETIGO) is an easy to use, web-based tool which requires no coding skills and can be used with any type of measurement device. Users can visualize their data and compare it ...

Unmanned aircraft systems (UAS, or drones) have been used to characterize emissions from prescribed forest and grassland fires.&nbsp;

Water quality standards are important for protecting and restoring the condition of lakes, rivers, estuaries, and other water bodies in the United States. Given that nutrient pollution continues to be a widespread problem in aquatic systems, the development of numeric nutrient cr...

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...

Emerging contaminants of concern (ECCs), such as flame retardants and per- and poly-fluoroalkyl substances (PFAS), are frequently detected in various environmental compartments and biological matrices/species due to widespread use and release through different exposure pathways. ...

The Small Communities - Big Challenges Competition was a ORD and OEJECR sponsored Challenge and Prize Competition that was open to local governments to highlight innovative and inclusive strategies for engaging with rural communities and collaboratively identifying environmental ...

Identifying reliable positive and negative control compounds is integral to determining the sensitivity and specificity of chemical assays. Our laboratory screens chemicals for developmental neurotoxicity potential using assays that assess larval zebrafish locomotor behavior in r...

Background: Mechanistic understanding of transient exposures that lead to adverse health outcomes will enhance our ability to recognize biological signatures of disease. Here, we measured the transcriptomic and epigenomic alterations due to exposure to the metabolic reprogramming...

Excess nutrients (nitrogen and phosphorus) in lakes can lead to eutrophication, hypoxia, and algal blooms that may harm aquatic life and people.&nbsp;&nbsp;Some U.S. states have established numeric water quality criteria for nutrients to protect surface waters.&nbsp;&nbsp;However...

The presentation prevents an overview of ORDS research on risk assessment and systems analysis of decentralized water reuse approaches to a group of graduate students in an interdisciplinary program on science, technology, engineering, and policy. The organizers are interest in p...

Presentation will be delivered at EPA webinar (Innovations in Environmental Science) and at ACS Fall Meeting. Overview of ongoing F3 research. Investigating the impacts of novel PFAS-free AFFF on environmental and human health is necessary to ensure they are safer, sustainable, a...