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This is a lecture presentation to public health students in the Gilling School of Public Pealth at University of North Carolina at Chapel Hill.

On September 1, 2020, EPA published the final regulation, Use of Lead Free Pipes, Fittings, Fixtures, Solder, and Flux for Drinking Water. EPA made&nbsp; the conforming changes to existing regulations based on the Reduction&nbsp; of Lead in Drinking Water Act of 2011 and the Comm...

A key part of the problem formulation phase of environmental assessment is the development of conceptual model diagrams. These diagrams, which explicitly illustrate hypothesized pathways between sources, stressors, and responses relevant to the focal issue, are used in scoping an...

The National Aquatic Resource Surveys (NARS) program, a collaboration among United States Environmental Protection Agency (US EPA) Office of Water, Office of Research and Development (ORD), and states and tribes, assesses progress towards the objective of the Clean Water Act thro...

EPA-ORD-CPHEA's Michael Pennino and Jana Compton were invited to present on groundwater nitrate at SSWR&rsquo;s Quarterly Research Area Coordination Team (RACT) meeting for the Nutrients topic SSWR.4 on June 5, &nbsp;2024.&nbsp; This meeting brings together the research coordinat...

Diatoms and soft algae have been collected by state monitoring programs across the United States to assess the biological condition of lotic and lentic water bodies. Some of the state programs have long-term records (i.e., decades) of algal taxonomic data. Over time, changes in l...

Taxonomic data are the foundation of bioassessment and much basic and applied research. Difficulty in morphological species identification, evolving and varying taxon concepts, and nomenclatural changes can lead to significant inconsistencies in taxonomic datasets across analysts...

These slides introduce EPA ORD's Living Shorelines public education session for the community of Crisfield, MD, as part of co-development of research on nature-based strategies for coastal resilience. The goal is to help build knowledge capacity around living shoreline functional...

Freshwater ecosystems are exceptionally rich in biodiversity and provide essential benefts to people. Yet they are disproportionately threatened compared to terrestrial and marine systems and remain underrepresented in the scenarios and models used for global environmental assess...

Poly- and perfluoroalkyl substances (PFAS) are a large class of halogenated organic compounds (HOCs, also called organohalogens) utilized in a variety of industrial applications. Despite their widespread use in bulk quantities, significant concerns have been raised regarding thei...

During the past century, a vast number of organic chemicals have been manufactured and used in industrial, agricultural, public health, consumer products, and other applications. The widespread use in bulk quantities of halogenated organic chemicals (HOCs; also called as Organoha...

Halogenated organic compounds (HOCs) are long-lived toxic compounds and are of major concern for ecosystem and health. The use and manufacture of several HOCs is banned or phased out in most countries, but some HOCs are still being used in several countries. The levels of certain...

Aquatic ecosystem resilience to wildfire can vary widely depending on the characteristics of fire and the spatial context of where a fire takes place. Researchers at EPA&rsquo;s Office of Research and Development are collaborating with the US Forest Service, and Oregon State Univ...

Presentation about research using trail cameras as input data to a neural network machine learning model to inform on streamflow.

Presentation for the Clean Water Act 303(d) training workshop that discusses lessons from data collection at stream and lake Regional Monitoring Network sites. The presentation also covers novel monitoring approaches using trail cameras.

The effect of wildfire on aquatic habitat over time is not well understood, especially in the Pacific Northwest, and relies on the collection of ongoing data over long time periods. In Western Washington, Oregon, and Northern California, the Aquatic and Riparian Effectiveness Mon...

Drinking water nitrate contamination is a significant economic and public health concern in The Great Plains, with few tested best practices for improving source water quality. This project seeks to establish a monitoring framework for quantifying the benefits of soil health prac...

The Equitable Resilience Builder (ERB) is a downloadable application that for enhancing community engagement and equity in resilience planning. The tool provides guidance and activities for assessing community resilience needs and identifying actions. Activities include network m...

Introduction The Integrated Risk Information System (IRIS) assessment for trichloroethylene (TCE) found that human data were sufficient to support dose-response modeling and to develop an inhalation unit risk (IUR) for renal cell carcinoma (RCC). However, human and rodent data su...

This chapter is focused on the reproductive and developmental toxicity of selected environmentally relevant volatile solvents and gasses to which inhalation is a primary route of exposure in humans. Limited data are available regarding the human reproductive and developmental tox...

Physiologically based pharmacokinetic (PBPK) models are commonly used in risk assessments to perform inter- and intraspecies extrapolations as well as to extrapolate between different dosing scenarios; however, they must first undergo quality assurance review, which can be a time...

SAAOP Invited presentation to highlight interoperability of EPA Adverse Outcome Pathway Database (AOP-DB) with the AOP-wiki.

This poster is intended to provide a quick reference for key points of face mask fit and simple modifications that can be made to face masks to improve fit.&nbsp; It is intended to be used in EPA, and potentially other Federal, facilities.

The Adverse Outcome Pathway (AOP) framework has been adopted as means to assemble, organize, and integrate all available biological information to support sound regulatory decision making. Environmental chemicals can interfere with the thyroid system at numerous sites, and these ...

Air pollution is a global environmental and public health issue. Exposure to air pollution is associated with elevated risk of morbidity and mortality from respiratory, cardiovascular, and neurological diseases. Following exposure to air pollution, the lung and other organ system...