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Per- and polyfluoroalkyl substances (PFAS) are a group of chemicals which are used extensively in a variety of applications, including firefighting in the form of AFFF which is a very effective firefighting agent. However, releases of AFFF through training exercises or when fight...

Contamination of soil and groundwater by per- and polyfluoroalkyl substances (PFAS) is a growing area of concern, yet there is limited understanding of the factors that control PFAS sorption and desorption in soil. We reviewed published literature for reported sorption coefficien...

Stream restoration is a popular approach for managing nitrogen (N) in degraded, flashy urban streams. Here, we investigated&nbsp;the long-term effects of stream restoration involving floodplain reconnection on riparian and in-stream N transport&nbsp;and transformation in an urban...

Industrial producers and users of per- and polyfluorinated alkyl substances (PFAS) are a major source of chemical contamination to nearby communities due to historical releases of legacy PFAS. Following the general phase-out of legacy PFAS such as PFOA/PFOS, industrial usage has ...

Worldwide, ash is used as a substitute for portland cement and other materials where more energy and natural resources are required.&nbsp; &nbsp;Metals such as mercury, arsenic, chromium, boron, and selenium are found in coal ash.&nbsp; Use of the Leaching Environmental Assessmen...

The work is planned in three stages. The first stage is for sensor prototype design involving survey and selection of the bioreceptor and a transduction mechanism, and the development of a prototypic sensor. In the second stage, the lab prototype is put to test with samples from ...

Long-term application of manures in watersheds with dense animal production has increased soil phosphorus (P) concentration, exceeding plant and soil assimilative capacities. The P accumulated in soils heavily manured and containing excess extractable soil P concentrations is kno...

Back diffusion of contaminants from secondary sources may hamper site remediation if it is not properly addressed in the remedial design. There are a number of approaches and strategies that can be used to address the risk posed by back diffusion. A review of all reported technol...

This study demonstrates the value of a coupled chemical transport modeling system for investigating groundwater nitrate contamination responses associated with nitrogen (N) fertilizer application and increased corn production. The coupled Community Multiscale Air Quality Bidirect...

We evaluated the impacts of domestic and agricultural rainwater harvesting (RWH) systems in three watersheds within the Albemarle-Pamlico river basin (southeastern U.S.) using life cycle assessment (LCA) and life cycle cost assessment. Life cycle impact assessment (LCIA) categori...

Rural Ghanaian communities continue using microbiologically contaminated surface water sources due in part to undesirable organoleptic characteristics of groundwater from boreholes. Our objective was to identify thresholds of physical and chemical parameters associated with consu...

The supply of safe drinking and clean water is becoming increasingly challenging proposition throughout the world. The deployment of environmentally sustainable nanomaterials with unique advantages namely high efficiency and selectivity, earth-abundance, recyclability, low-cost o...

For decades, the focus of drinking water providers has been on fecal pathogens like E. coli, Giardia, and Crytosporidium. In recent years, drinking water professionals and building operators have begun to recognize the importance of so-called opportunistic pathogens like Legionel...

In June 2017, the Pennsylvania Department of Health (PADOH) was notified of multiple norovirus outbreaks associated with 179 ill individuals who attended separate events held at an outdoor venue and campground over a month period. Epidemiologic investigations were unable to ident...

Per- and polyfluoroalkyl substances (PFAS) make up a widespread, environmentally persistent class of anthropogenic chemicals that are widely used in industrial and consumer products and frequently detected in environmental media. Concerns over potential human health impacts from ...

Per- and polyfluoro alkyl substances (PFAS) are an environmentally persistent and high interest class of chemical pollutants with a rapidly expanding roster. High resolution mass spectrometry (HRMS) has been a workhorse technique supporting non-targeted approaches to sample analy...

The supply of safe drinking and clean water is becoming increasingly challenging proposition throughout the world. The deployment of environmentally sustainable nanomaterials with unique advantages namely high efficiency and selectivity, earth-abundance, recyclability, low-cost o...

Public water systems (PWSs) implement ultraviolet (UV) disinfection for the inactivation of regulated pathogens in accordance with the requirements of the Long Term 2 Enhanced Surface Water Treatment Rule (LT2ESWTR) and the Ground Water Rule (GWR), and the guidance provided by th...

Sharing the latest state-of-the-science and integrating technological advances helps to foster success in the cleanup of hazardous waste sites. This information also helps to inform and improve the decision-making process at Comprehensive Environmental Response, Compensation, and...

Under the U.S. Environmental Protection Agency Arsenic Demonstration Program, an iron removal (IR) process consisting of permanganate oxidation followed by GreensandPlus™ filtration was shown to be effective in removing soluble As(III) (24.1 μg/L on average) from Waynesville, IL ...

Tidal freshwater marshes (TFMs) can protect downstream ecosystems from eutrophication by intercepting excess nutrient loads; however, recent studies in saltmarshes suggest that long-term nutrient loading compromises the structural and functional integrity of tidal wetlands. Here ...

The rapid development of unconventional gas resources has been accompanied by an increase in public awareness regarding the potential effects of drilling operations on drinking water sources. Incidents have been reported involving blowouts (e.g., Converse County, WY; Lawrence Tow...

Private domestic wells are not subject to the testing requirements of the Safe Drinking Water Act and are susceptible to contamination by natural and anthropogenic contaminants. For public health and planning purposes, the locations of high density of private domestic well (PDW) ...

The interest in using Flue Gas Desulfurization Gypsum(FGDG) has increased recently. This study evaluates the leaching characteristics of trace elements in "modern" FGDG (produced after fly ash removal) and FGDG-mixed soil (SF) under different environmental conditions using rece...

Assessing Potential for Ground and Surface Water Impacts from Hormones in CAFOs.