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Accurate fire emissions inventories are crucial to predict the impacts of wildland fires on air quality and atmospheric composition. Two traditional approaches are widely used to calculate fire emissions: a satellite-based top-down approach and a fuels-based bottom-up approach. H...

Formaldehyde (HCHO) is one of the most abundant non-methane volatile organic compounds (VOCs) emitted by fires.&nbsp;HCHO&nbsp;also undergoes chemical production and loss as a fire plume ages, and it can be an important oxidant precursor. In this study, we disentangle the process...

During the 2019 Fire Influence on Regional to Global Environments and Air Quality&nbsp;(FIREX-AQ) study, the NASA DC-8 carried out in situ chemical measurements in smoke plumes emitted from wildfires and agricultural fires in the contiguous United States. The DC-8 payload include...

Fires emit sufficient sulfur to affect local and regional air quality and climate. This study analyzes SO2&nbsp;emission factors and variability in smoke plumes from US wildfires and agricultural fires, as well as their relationship to sulfate and hydroxymethanesulfonate (HMS) fo...

Global positioning systems (GPS) provide users with positioning, navigation, and timing services. However, this resource is limited when it comes to gathering information and guidance for interior spaces: GPS signals communicate with satellites and do not move easily through soli...

In the event of a chemical, biological, radiological, and/or nuclear (CBRN) wide-area incident, the U.S. Environmental Protection Agency (EPA) is responsible for environmental remediation, waste disposal processes, data collection, and data quality checks to advise decision-makin...

Globally, billions of people burn fuels indoors for cooking and heating, which contributes to millions of chronic illnesses and premature deaths annually. Additionally, residential burning contributes significantly to black carbon emissions, which have the highest global warming ...

This presentation provides an overview of EPA Office of Research Development's extramural research grant programs that are managed by the Office of Science Advisor, Policy and Engagement

This is the PowerPoint slide deck for the Science to Achieve Results (STAR) &ldquo;Air Quality Information: Making Sense of Air Pollution Data to Inform Decisions in Underserved Communities Overburdened by Air Pollution&rdquo; Funding Opportunity Informational Webinar that will b...

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...

Battelle and EPA evaluated the effectiveness of UAV platforms to perform volumetric measurements of various types of debris (e.g., biomass such as fallen vegetation, stacks of building material, and other debris) using &nbsp;lidar and structure from motion (SfM) photogrammetry. T...

This is a talk I will give as part of the Toxics Webinar | Issue Cover Authors of 2023. I will only discuss published work that has been cleared and published in Toxics last year.

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.&bull; Recent research focused on establishing CLs for tree species&rsquo; 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...

Per- and polyfluoroalkyl substances (PFAS) are widely used, and their fluorinated state contributes to unique uses and stability but also long half-lives in the environment and humans. PFAS have been shown to be toxic, leading to immunosuppression, cancer, and other adverse healt...

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...

Microplastics (MPs) are an emerging class of pollutants in air, soil, and, especially, in all aquatic environments.&nbsp; Secondary MPs are generated in the environment during fragmentation of especially photo-oxidized plastic litter. Photo-oxidation is mediated primarily by sola...

Assessing the fate of PFAS in the environment requires improved analytical methodologies to quantify a greater variety of PFAS and application of these methods to investigate their occurrence in complex sample matrices. PFAS precursors are a compound class of emerging concern tha...

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...

Conventional mining-influenced (MIW) treatment facilities are expensive to operate and maintain, partly because they produce large quantities of metals-containing sludge that must be managed for years or decades, and in some cases in perpetuity. In 2020, EPA&rsquo;s Office of Sup...

Poster presentation to the&nbsp;PFAS Research Workshop &quot;Science for a Changing World&quot;, hosted by Office of Research and Development (ORD) Office of the Science Advisor, Policy, and Engagement (OSAPE) and Center for Environmental Solutions and Emergency Response (CESER) ...

A critical step in systematic reviews of potential health hazards is the structured evaluation of the strengths and weaknesses of the included studies; risk of bias is a term often used to represent this process, specifically with respect to the evaluation of systematic errors th...

Subchronic and chronic studies in rats of the gasoline oxygenates ethyl&nbsp;tert-butyl ether (ETBE) and&nbsp;tert-butanol (TBA) report similar noncancer kidney and liver effects but differing results with respect to kidney and liver tumors. Because TBA is a major metabolite of E...

In recent years, the emission of particles and gaseous pollutants from 3D printing has attracted much attention due to potential health risks. This study investigated the generation of environmentally persistent free radicals (EPFRs, organic free radicals stabilized on or inside ...

Bench top and pilot lead corrosion studies are gaining more interest, considering revisions and upcoming improvements to the Lead and Copper Rule. This literature review identified studies ranging from simpler month(s)-long bench top dump-and-fill stagnant water tests (coupon tes...