Science Inventory

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This is a poster for the 2023 National Association of City and County Health Officials (NACCHO) Conference. This poster aims to demonstrate how EPA develops and delivers resources that meet the science needs of states/territories and other entities through highlighting ORD tools ...

Microplastics (MP) are found in marine sediments across the globe, but we are just beginning to understand their spatial distribution and assemblages. In this study, we quantified MP in Gulf of Maine, USA sediments. MP were extracted from 20 sediment samples, followed by polymer ...

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...

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...

This repository contains data for the manuscript “Three centuries of biogeochemical change in a temperate embayment as revealed by sediment cores stable isotopes and historical ecology”, by Sawyer J. Balint, Morgan Schwartz, Andrew Gray, Tim Cranston, Robinson W. Fulw...

Overview of the EPA ORD's extramural research grant programs such as STAR, P3, and National Priority will be presented to the academic researchers from Ohio State University.

Omics methodologies are increasingly used to inform human health risk assessment. The volume of transcriptomic data in particular has grown markedly with the commercialization of targeted sequencing approaches that enable high-throughput gene expression profiling. These technolog...

This abstract is for a presentation at the North Carolina Society of Toxicology (NCSOT) Annual Meeting. High-throughput transcriptomics (HTT) can be an efficient tool to screen large sets of chemicals in vitro, determine transcriptional point-of-departures, and investigate toxico...

To cause developmental toxicity, chemical exposures must cause bioactive concentrations in key tissues during susceptible lifestages, including during early fetal development. Next generation chemical risk assessment (NGRA) aims to replace and enhance traditional toxicity testing...

Air quality improvement has benefitted large portions of forests in the USA over the past 20 years. However, although terrestrial ecosystems are now better protected, sensitive species still experience harmful impacts, which could lead to biodiversity loss through shifts in fores...

With increasing concerns about freshwater cyanobacteria blooms, there is a need to identify which waterbodies are at risk for developing these blooms, especially those that produce cyanotoxins. To address this concern, we developed spatial statistical models using the US National...

Background: Air pollution risk assessments do not generally quantify health impacts using multipollutant risk estimates, but instead use results from single-pollutant or copollutant models. Multipollutant epidemiological models account for pollutant interactions and joint effects...

This presentation will review the latest research on inputs, budgets, effects, legacies and management related to non-point source nutrient pollution.  Using examples of nitrogen and phosphorus budgets at the national, regional and local scales, Jana Compton from EPA’s...

Pew Charitable Trusts – Peatland Mapping Workshop Series.  Amanda Nahlik is invited to present at the Peatland Mapping Workshop webinar focused on quantifying peatland extent with the goal of producing a national peatland map.  This webinar series was organized to...

This is a contributed presentation to the Monday Morning Meeting seminar series organized by the Department of Fisheries, Wildlife and Conservation Science at Oregon State University and focuses on the use of joint species distribution modeling to quantify taxon-environment relat...

Current methods for cancer risk assessment are resource-intensive and not practical for thousands of untested chemicals in the environment. In earlier studies, we developed a new approach methodology (NAM) to identify liver tumorigens using gene expression biomarkers and associat...

Per- and polyfluoroalkyl substances (PFAS) are compounds found in many consumer and industrial products with ubiquitous spread in environmental matrices. While there is evidence that some PFAS, notably perfluorooctanoic acid (PFOA) and perfluorooctanesulfonic acid (PFOS), cause d...

Anxiety may be related to chemical exposure during brain development, so there’s a need to assess anxiety after exposure to environmental chemicals. However, there is not a standard high throughput assay to assess mental health effects of exposure. There is a promising test...

Wildfires have increased in frequency and area burned, trends expected to continue with climate change. Among other effects, fires release pollutants into the atmosphere, representing a risk to human health and downwind terrestrial and aquatic ecosystems. While human health risks...

Invited Question and Answer article for Nature Cardiovascular Research on Particulate Matter.Recent air-quality alerts in major cities due to the wildfires in Canada, Hawaii and Greece have put fine particulate matter (PM) pollution and consequent health issues into the spotlight...

Wetland restoration and construction are important land management options for retaining nitrogen and phosphorus and thereby improving water quality at local scales (i.e., at nearby streams). However, limited information exists regarding the cumulative influence of wetlands outsi...

Agricultural best management practices/conservation practices (ag BMPs/ACPs) have been widely implemented for nonpoint source pollution control. However, through a Region 10 R2P2 project, we have identified two critical knowledge gaps that limit broader adoption of ACPs in the Pa...

Over the last 10 years the EPA has been conducting research to better quantify the magnitude of greenhouse gas emissions from US reservoirs.   In 2021 reservoirs were included in the Inventory of US Greenhouse Gas Emissions and Sinks for the first time and currently estimate...

To continue estimating hedonic property models, possibly expanding environmental justice analyses, and undertaking other analyses that use property characteristics, EPA is interested in acquiring national property transaction data as a replacement for Zillow’s ZTRAX data. Z...

Thoughtful science communication is essential for the success of collaborative, transdisciplinary environmental research. We present an innovative evaluation of a four-year pilot project that took a highly engaged and collaborative approach to managing excess nutrients in the Cap...