Science Inventory

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&nbsp; The negative effects of nutrient pollution in streams, rivers, and downstream waterbodies remain widespread global problems. Understanding the cost-effectiveness of different strategies for mitigating nutrient pollution is critical to making informed decisions and definin...

Phosphorus causes nutrient pollution in lentic water systems, which act as a reservoir of phosphorus since it is stored within the sediments of these waterbodies. The effects of phosphorus pollution include harmful algal bloom events, hypoxia of waterbodies, and impairment of dri...

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...

Historically, communities have used gray infrastructure—systems of gutters, pipes, and tunnels—to move stormwater away from where we live to treatment plants or straight to local water bodies.  The gray infrastructure in many areas is aging, populations are increasing, and its ex...

Understanding and predicting the quality of inland waters are challenging, particularly in the context of intensifying climate extremes expected in the future. These challenges arise partly due to complex processes that regulate water quality, and arduous and expensive data colle...

This presentation was developed to provide background and insights on ORD's research related to Tucson International Airport Area (TIAA) Superfund Site. The focus of ORD's research at this site currently is on treatment options for spent media used to treat groundwater impacted b...

The design of emission abatement measures to effectivly reduce high ground-level ozone (O3) concentrations in urban areas is very complex. In addition to the strongly non-linear chemistry of this secondary pollutant, precursors can be released by a variety of sources in different...

The presentation prevents an overview of ORDS research on risk assessment and systems analysis of decentralized water reuse approaches to a group of graduate students in an interdisciplinary program on science, technology, engineering, and policy. The organizers are interest in p...

Streamflow Duration Assessment Methods (SDAMs) are single-visit, field assessment methods for accurately predicting flow duration classes (i.e., ephemeral, intermittent, and perennial) that help implement federal, state, and local water resources programs. The aim of this project...

Recent advances in analytical technologies (such as high-resolution mass spectrometry) have enabled the development of emerging workflows for non-targeted analysis (NTA) in a number of important application areas. This session will focus on presenting current efforts in federal g...

New chemical formulations are being tested to replace PFAS-containing fire-fighting foams in several applications, including systems designed to protect aviation fuels, weapons, chemical tankers, and large petroleum tanks. The current efforts are focused on identifying and synthe...

The U.S. Environmental Protection Agency&rsquo;s (EPA) Superfund program is responsible for the assessment, cleanup, and reuse of some of the most contaminated sites in the United States. The primary goal of the Superfund program is to protect human health and the environment; th...

The declining trend in vehicle emissions has underscored the growing significance of Volatile Organic Compound (VOC) emissions from Volatile Chemical Products (VCP). However, accurately representing VOC chemistry in simplified chemical mechanisms remains challenging due to its ch...

Benthic rapid assessment tools are needed to close the gap between sample collection and analysis so managers can better evaluate ecological response to management actions and environmental conditions. Sediment profile imaging (SPI) captures the top centimeters of sediment in cro...

EPA&rsquo;s Office of Research and Development (ORD) is partnering with a community in the Chesapeake Bay region, Crisfield, Maryland, to co-develop research addressing climate-related flooding and erosion issues incorporating natural infrastructure comprised of coastal resources...

This presentation will cover recent research on nutrient inputs, agricultural management and nitrate concentrations in soil solution and groundwater in the southern Willamette Basin&rsquo;s Groundwater Management Area (GWMA).&nbsp;Non-point sources are the predominant inputs of n...

A substantial fraction of nitrogen (N) fertilizer applied in agricultural systems is notincorporated into crops and moves below the rooting zone as nitrate (NO3&minus;). Under-standing mechanisms for soil N retention below the rooting zone and leaching togroundwater is essential ...

Conventional mining-influenced water (MIW) treatment technologies are expensive to operate and maintain, require frequent labor, materials input, and sampling, and produce large quantities of treatment-generated solids that must be managed. In 2019, EPA&rsquo;s Office of Superfun...

As climate change progresses in the Great Lakes, the region is increasingly vulnerable to invasion by mosquito species and increased viral transmission. Restoration activities that address degradation of benthos, degraded fish and wildlife populations, loss of fish and wildlife ...

Along urban streams and rivers, various processes, including road salt application, sewage leaks, and weathering of the built environment, contribute to novel chemical cocktails made up of metals, salts, nutrients, and organic matter. Due to heterogeneous land use and a myriad of...

The Society of Environmental Toxicology and Chemistry (SETAC) convened a Pellston workshop in 2022 to examine how information on climate change could be better incorporated into the ecological risk assessment (ERA) process for chemicals as well as other environmental stressors. A...

&ldquo;Ecosystem services&rdquo; are the benefits ecosystems provide to people. These benefits include providing food, clean air, clean water, recreation, and many other services that provide explicit or intrinsic values to people and communities. Investments in Chesapeake Bay re...

Presentation will be delivered at EPA webinar (Innovations in Environmental Science) and at ACS Fall Meeting. Overview of ongoing F3 research. Investigating the impacts of novel PFAS-free AFFF on environmental and human health is necessary to ensure they are safer, sustainable, a...

This presentation was previously cleared and presented to ECOS and ASTHO. Overview on planned experiments on assessment of PFAS alternatives.&nbsp; Overview of ongoing F3 research. Investigating the impacts of novel PFAS-free AFFF on environmental and human health is necessary to...

This is the presentation based on the abstract, ORD.0.0.0.382.&nbsp; &nbsp;What does it take for a good scientific idea to survive the political lawmaking process? How can scientists and engineers contribute to this effort from inside the legislative branch? For the year 2022, th...