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Agricultural soils are increasingly undergoing inadvertent and purposeful exposures to engineered CeO2 nanoparticles (NPs), which can impact crops and root-associated microbial communities. However, interactions between NP concentration and exposure duration on plant-mediate...

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 ...

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...

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...

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...

This is a public presentation on the potential effects of nutrients in smoke on downwind cyanobacteria blooms. Wildfire activity is increasing in the continental U.S. and can be linked to climate change effects, including rising temperatures and more frequent drought conditions. ...

Protein processing operations include animal slaughtering, meat and poultry product production, and/or rendering of byproducts. These facilities utilize large volumes of water for hair/hide/feather removal, carcass washing, chilling, trimming and cutting, cooking, and cleaning/sa...

Critical loads or levels (CL) are estimates of quantitative thresholds for levels of deposition above which significant harmful ecological effects can occur, according to present knowledge.• Recent research focused on establishing CLs for tree species’ growth and survi...

Climate change presents cascading and compounding threats to low-income and underrepresented communities, increasing the need for equitable resilience planning. However, many local governments face challenges incorporating community voices with resilience and vulnerability data i...

Increasing and inequitable impacts from climate change and other hazards are a growing concern for communities and a focus of planning efforts. This research, conducted through case studies with several U.S. communities, explores and develops ways to center equity in resilience p...

This presentation shares an overview of the research that ORD is planning to co-produce with the Crisfield, Maryland community and stakeholders to investigate options for nature-based solutions for coastal resilience. It presents preliminary research results from scoping potentia...

With the declining tailpipe emissions from the US and worldwide motor vehicle fleet, impacts of tire and brake wear are an increasingly important area of interest.  Recent research has shown the compound 6PPD used in tires as an anti-degradation chemical reacts with ozone to...

The Northeast Lakes Sediment Diatom Collaborative (NLSDC) is committed to improving the management of northeastern U.S. lakes by assessing their current and past ecological integrity using sediment diatoms (i.e., microscopic siliceous algae). Through a Regional Applied Research E...

Background:  Restoration efforts have led to the return of anadromous fish, a potential source of food for the Penobscot Indian Nation, to the previously dammed Penobscot River, Maine.  Objective:  U.S. Environmental Protection Agency (EPA), in collaboration with t...

In March 2024, the draft IRIS Assessment of Perfluorononanoic Acid (PFNA) and Related Salts (Public Comment and External Review Draft) and the draft charge to external peer reviewers were released for a 60-day public review and comment period. The Toxicological Review and charge ...

In April 2023, the IRIS Program released the draft IRIS Toxicological Review of Perfluorodecanoic Acid (PFDA) and Related Salts for public comment and external peer review. The IRIS assessment of PFDA will undergo an independent external scientific peer review managed by ERG, a c...

<h3>Meeting Objective</h3> <p>To facilitate the independent external peer review of the draft PFAS IRIS assessments, U.S. Environmental Protection Agency (EPA) contracted with ERG to run a public meeting. This website serves as a resource for the peer review activities associa...

Human biomonitoring (HBM) data measured in specific contexts or populations provide information for comparing population exposures. There are numerous health-based biomonitoring guidance values, but to locate these values, interested parties need to seek them out individually fro...

Evidence suggests that clothing can influence human exposure to semi-volatile organic compounds (SVOCs) through transdermal uptake and inhalation. Accordingly, a computational modeling framework (ABICAM) was expanded and applied to assess the dynamics of human exposure to gas-pha...