Science Inventory

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Background and Purpose Biosolids are treated sewage sludge produced as a byproduct of the wastewater treatment process, often applied to land or disposed of in landfills. Under the Clean Water Act, the US EPA Office of Water (OW) has the responsibility to protect human health and...

Presentation to Southwest Ohio Water Environment Association Industrial Waste Seminar.&nbsp; Overview of the Renewable Fuel Standard and its relation to wastewater utility biogas production.

Whole Effluent Toxicity (WET) test methods for measuring the toxicity of effluents and receiving waters are found in 40 CFR Part 136. Short-term chronic freshwater toxicity test methods include the use of three species &ndash; a cladoceran (Ceriodaphnia. dubia), the fathead minno...

Presentation that outlines the process for developing a research plan for a BILS funded research project that is designed to develop validatable methods for detection and quanitation of emerging and historically important pathogens in raw and treated wastewater.

Presentation outlining prospective dissertation research on the Fate and Transport of wastewater linked contaminants. Research investigates the environmental, spatial, temporal, and laboratory methodological trends in monitoring wastewater impacts to surface water.

The purpose of this lecture is to provide a summary of the EPA's research activities with regards to waterborne protozoa with specific emphasis on methods development to detect Cryptosporidium Giardia, and Toxoplasma gondii.

Chemicals of concern may pose an unreasonable risk to human health and the environment across their life cycle stages. Risk assessment at the end-of-life (EoL) stage is of critical importance due to differing chemical management methods that result in possible exposure scenarios....

Wastewater is a source for many contaminants of emerging concern (CECs) and surface waters receiving wastewater discharge often serve as source water for downstream drinking water treatment plants. Non-targeted analysis and suspect screening methods were used to characterize chem...

An analysis was conducted of the Chicago metropolitan region using the following integrated metrics: Fisher Information, Green Net Metropolitan Product, Net Energy, Ecological Footprint, Human Well Being Index, and Emergy. Data were aggregated as they were available, over a multi...

US EPA has previously published a decision support tool (River Basin Export Reduction Optimization Support Tool, RBEROST) populated with data for the Upper Connecticut River Basin to allow stakeholders to determine the least-cost management strategies to meet nitrogen and phospho...

The lack of standardized methods and large differences in virus concentration and extraction workflows have hampered Severe Acute Respiratory Syndrome (SARS-CoV-2) wastewater surveillance and data reporting practices. Numerous studies have shown that adsorption-extraction (AE) me...

It is becoming a necessity to provide resource constrained small public water utilities with diverse, cost-effective, low-technology and sustainable alternatives for removing arsenic and other contaminant clusters in order to provide safe drinking water.Chitosan-coated Diatomaceo...

Background/Objectives. Targeted chemical analyses, non-targeted analyses, and bioanalytical tools each provide a unique but incomplete understanding of the chemicals in a sample.  The US Environmental Protection Agency and US Geological Survey are collaborating to examine the sou...

Treating per- and poly-fluoroalkyl substances (PFAS) contaminated water is an important research topic due to the potential health risks associated with PFAS exposure. Membrane distillation (MD), which utilizes hydrophobic microporous membranes that prevent the transport of non-v...

The analysis of contaminants of emerging concern (CECs) has been an ongoing priority due to their potential for adverse effects on human health and wildlife. With many tens of thousands of chemicals in use today, prioritizing specific chemicals or mixtures of chemicals to be targ...

The presence of numerous chemical contaminants from industrial, agricultural, and pharmaceutical sources in water supplies poses a potential risk to human and ecological health. Current chemical analyses suffer from limitations, including chemical coverage and high cost, and broa...

In urban systems, a wide variety of processes, including increasing impervious surface cover, road salt application, sewage leaks, and weathering of the built environment, contribute to novel chemical cocktails that are comprised of metals, salts, nutrients, and organic matter. D...

Antimicrobial resistance (AMR) is a major public health threat that is projected to lead to 10 million deaths annually by 2030. The AMR public health issue has led to the development of action plans to combat AMR, including improved antimicrobial stewardship, development of new a...

Limited availability of fish metabolic pathways for PFAS may lead to ecological risk assessments with inherent uncertainties based upon the parent chemical only or the assumption that the biodegradation or mammalian metabolism map data will serve as an adequate surrogate. A MetaP...

Water is a defining issue of our time. Cities across the world are rethinking the traditional linear approach to water systems in the face of drought, extreme weather, and associated impacts on water quantity and quality. Reuse of alternative water sources for a variety of non-po...

In urban systems, a wide variety of processes, including increasing impervious surface cover, road salt application, sewage leaks, and weathering of the built environment, contribute to novel chemical cocktails that are made up of metals, salts, nutrients, and organic matter. Due...

This study characterized Bacillus globigii (BG) as a Bacillus anthracis Sterne (BAS) surrogate for wastewater treatment-related studies of UV inactivation, adsorption onto powdered activated carbon (PAC), and bioaerosol emission. The inactivation of BG was faster than that of BAS...

Determining whether chemical end-of-life (EoL) scenarios pose an unreasonable risk to human or environmental health through risk evaluations has become an ever-growing focus of the U.S. EPA and other environmental regulatory entities across the U.S and the world. Wastewater relea...

Testicular oocytes in wild adult bass (Micropterus&nbsp;spp.) are considered a potential indication of exposure to estrogenic compounds in municipal, agricultural, or industrial wastewater. However, our ability to interpret links between testicular oocyte occurrence in wild fish ...

Biosolids are treated sewage sludge produced as a byproduct of the wastewater treatment process, often applied to land or disposed of in landfills. Under the Clean Water Act, the US EPA Office of Water (OW) has the responsibility to protect human health and the environment from a...