Office of Research and Development Publications

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We describe the development and implementation of a Physiological and Anatomical Visual Analytics tool (PAVA), a web browser-based application, used to visualize experimental/simulated chemical time-course data (dosimetry), epidemiological data and Physiologically-Annotated Data ...

Riparian functioning condition refers to a rating and description of the current ecological status of a reach of a riparian ecosystem in consideration of its potential hydrology, vegetation, and geomorphology. We assessed functioning condition of flowing riverbank areas of the Ba...

Soil moisture constitutes about 3% of circulating renewable freshwater resources; however, its role is vital for terrestrial ecosystems. It serves as an essential mediator of water between the atmosphere, plants, and subsurface. Soil often acts as a temporary reservoir, accumulat...

Supercritical Water Oxidation (SCWO) process for hazardous waste destruction uses the temperature and pressure of water above the critical point (374 oC, and 22.1 MPa) to degrade hazardous organic pollutants into CO2, water, sodium fluoride and other benign compounds. Using SCWO ...

Muskegon Lake is a drowned river-mouth lake designated by the U.S. EPA in 1987 as a Great Lake Area of Concern. All nine of the lake&rsquo;s beneficial use impairments have been approved for removal, and the region is awaiting final approval from EPA for official delisting. Altho...

Increased magnitude and frequency of precipitation events are some of the effects of climate change that most commonly impact urban tropical estuaries. The resultant flooding, in combination with a faulty wastewater infrastructure, exposes urban coastal communities to contaminate...

Background: &nbsp;&nbsp;&nbsp;&nbsp; This sub-product will be a consolidation of work efforts initiated under a CRADA (Lubrizol CRADA) and the current RAP and proposed for this new RAP.&nbsp; Each sub-product will relate to applied research to assess, demonstrate, develop, and im...

This presentation examines short-term Vapor Intrusion (VI) temporal variability affected by seasons in volatile organic compounds (VOCs) measured in indoor air. Samples were collected concurrently from two buildings, a residential style office building (1600sqft), and a larger co...

Subsurface contamination can migrate upward into overlying buildings, exposing the buildings&rsquo; inhabitants to contaminants that can cause detrimental health effects. This phenomenon is known as vapor intrusion (VI). When evaluating a building for VI, understand that seasonal...

Background/Question/Methods. Anthropogenic sources of nitrogen resulting from landscape development in watersheds are primary sources of negative impacts in aquatic ecosystems. Measurements of nitrogen stable isotopes (&delta;15N) in aquatic biota are often used as indicators of ...

This dataset summarizes the measurements made at during four sampling events at the Massachusetts Alternative Septic System Technology Center in 2021 and 2023.

No abstract requested.

EPA's Freshwater Explorer is an interactive web-based mapping tool for water quality parameters of freshwater streams, lakes, and groundwater wells in all 50 U.S. states, Puerto Rico, and the U.S. Virgin Islands. The tool includes summary statistics for observed levels for approx...

This dataset summarizes the results of samples collected at six individual homes and two decentralized wastewater treatment systems. The influent and effluent from each of the treatment systems were sampled and analyzed for contaminants of emerging concern.&nbsp;

This is a required poster presentation intended to give a project overview. There was no abstract written or required.

The global regulatory landscape surrounding chemical safety is shifting away from animal testing and moving toward greater reliance on New Approach Methodologies (NAMs) including a rapid growth in molecular data and computational methods to achieve human and environmental protect...

A framework for assessing vulnerability of key ecological attributes of a system: Case study of ecosystems services in coastal wetlands

Fire whirls, a combustion-intensifying phenomenon, offer potential for cleaner, more efficient burns with reduced emissions in environmental applications like oil spill remediation. While most knowledge of fire whirls stems from laboratory-scale experiments, and only a limited su...

The main aim of the project was to investigate long-term conversion of ammonia using a pilot-scale biological filter designed and provided by USEPA through an Materials Cooperative Research and Development Agreement (MCRADA). The pilot unit consisted of a contactor having gravel ...

This subproduct is a presentation to be provided to Region 7's Regional Remedial Project Manager Training Meeting in February, 2025. The presentation is on Critical Minerals, the projects ORD/LRTD has that are ongoing, the established EPA/Battelle Cooperative agreement and how to...

The United States Environmental Protection Agency (US EPA) conducts extensive research to enhance the scientific foundation for national environmental decision-making. In this context, US EPA has developed COMET (City-based Optimization Model for Energy Technologies) to capture t...

This dataset provides daily predictions of ozone and fine particle (PM2.5) species across the contiguous U.S. and a large fraction of Canada at 12km horizontal resolution for 2023. Values are predicted by CMAQv5.5 with CRACMM chemistry.

Biological nitrogen fixation is the conversion of dinitrogen (N2) gas into bioavailable nitrogen by microorganisms with consequences for primary production, ecosystem function, and global climate. Here we present a compiled dataset of 4793 nitrogen fixation (N2-fixation) rates me...

Accounting for intraspecific and interspecific competition when assessing effects of chemical and non-chemical stressors is an important uncertainty in ecological risk assessments. Herein, we developed novel ecosystem projection of interspecific covariance (EPIC) matrices that al...

The role of the Cooperative Science and Monitoring Initiative (CSMI) is to direct enhanced monitoring and research activities across each of the Laurentian Great Lakes to provide relevant information to address the science priorities of each Lake Partnership (established under th...