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To support sound decision-making in environmental management, we need rigorous, defensible, and transparent synthesis of scientific evidence. The Association for the Sciences of Limnology and Oceanography (ASLO) and associated aquatic science societies are leaders in applying sci...

The University of Rhode Island’s Watershed Watch Volunteer Monitoring Program has been collecting water quality data on dozens of Rhode Island lakes and ponds for over 25 years, allowing exploration of long-term trends in common water quality parameters. Not all lakes and p...

Graphene is a two-dimensional nanomaterial with unique mechanical, thermal, electrical, and optical properties. With increasing applications of graphene-family nanomaterials (GFNs) in numerous fields such as electronics, biomedicine, and surface coatings, concern for their impact...

This submission is a slide presentation for a conference on PFAS and emerging contaminants by the American Council of Engineering Companies of North Carolina (ACEC/NC) and the Groundwater Professional of NC (GWPNC). The presentation is a case study in detection and identification...

In July 2001, dichlor (anhydrous sodium dichloroisocyanurate or sodium dichloroisocyanurate dihydrate) and trichlor (trichloroisocyanuric acid) use for the routine treatment of drinking water in the United States (US) was first approved. Their use is equivalent to adding free ch...

Populations of cold-water fishes are increasingly faced with warm river temperatures. Cold water refuges (CWR) – areas of cold water in which thermally-stressed individuals may seek temporary shelter – are increasingly invoked as a potentially mitigating feature withi...

This paper presents a greedy optimization algorithm for sensor placement to calibrate a water distribution system (WDS) hydraulic model more efficiently. The proposed approach improves the calibration accuracy by optimizing sensor placement. An optimally located sensor not only o...

A constructed, variable-flow treatment wetland was evaluated for its ability to reduce microbial loads from the Banklick Creek, an impacted recreational waterway in Northern Kentucky. For this study, levels of traditional (Escherichia coli and enterococci measured by culture and ...

Environmental stressors and contaminants can lead to Adverse Outcomes (AOs) in both human health and ecological receptors. Evaluating risk of AOs across multiple organisms in a community is crucial to characterize the cumulative impacts of stressors and contaminants; but is chal...

Agricultural best management practices (BMPs) reduce non-point source pollution from cropland. Goals for BMP adoption and expected pollutant load reductions are often specified in water quality management plans to protect and restore waterbodies; however, estimates of needed load...

The conventional wisdom of lead solubility has been built over the years by geochemical solubility models, experimental studies, and field sampling of drinking water lead levels using differing protocols. These models predict that lead solubility and release would be controlled b...

Previous studies have shown that air pollution exposure primes body systems to heightened responses to everyday activities that stress the cardiovascular (CV) system. The goal of this study was to investigate the impacts of a one-time exposure to eucalyptus smoke (ES) on the post...

Freshwater is a vital resource, however its quantity and quality are under constant pressure. Few methods have incorporated water resource impacts within impact pathways to the Area of Protection (AoP) natural resources, only addressing selected parts of the resource problem, a...

Hexafluoropropylene oxide dimer acid (HFPO-DA, aka GenX) is a member of the per- and polyfluoroalkyl substances (PFAS) chemical class and a high-profile contaminant of emerging concern. Elevated levels of HFPO-DA have been detected in multiple environmental matrices and treated ...

ABSTRACT Background: GenX (CAS: 62037-80-3) is a member of the per- and polyfluoroalkyl substances (PFAS) chemical class and a high-profile contaminant of emerging concern. Recent environmental monitoring efforts have identified elevated levels of GenX in surface water, air, and...

A common intended function of green infrastructure is management of urban ecosystem water cycles. The shape of land, specifically its hillslopes, within watersheds regulates the movement of water from uplands to streams. Thus, managing water cycling within watersheds requires wor...

The US Environmental Protection Agency (EPA) often requires expertise from environmental assessors, hydrologists, economists, and others to analyze the benefits of regional and national policy decisions related to changes in water quality. This led EPA to develop two integral co...

Coral reefs worldwide have degraded during the last five decades. Protection of reefs is challenging because of the many watershed, coastal and oceanic stressors that affect them. There are numerous actions that can be taken to reduce coral reef stressors, but implementation nece...

Social scientists at EPA-ORD-AED conduct a range of different research efforts in southern New England and beyond. This presentation will discuss broadly three of these efforts in terms of their methods and use in the local context. The three projects that we will be discussing a...

Global economic development and an increasing population have dramatically increased demand for water resources. Anthropogenic chemicals released from waste water treatment plants (WWTP), as well as industrial and agricultural operations, often negatively affect the quality of re...

Coastal tidal wetlands are well recognized for the key ecosystem services they provide such as flood protection, water quality improvement, and carbon sequestration. In the southeastern United States, some communities are relying on coastal wetlands for the management of secondar...

Prevalence of end-stage renal disease (ESRD) in the US increased by 74% from 2000 to 2013, with a 5-year survival of 42%. To investigate the role of the broader environment on ESRD survival time, we evaluated both average distance to the nearest hospital by county (as a surrogate...

Assessments of the environmental behavior of highly hydrophobic nonionic organic chemicals have large uncertainties because the models used to predict their behavior were parameterized using training sets of chemicals with much lower hydrophobicities. Bioaccumulation of a few hi...

There are over half a million abandoned mine sites in the U.S. potentially emanating mining-influenced water, contaminating streams and soils in adjacent areas. These sites present major challenges for their remediation, including: seasonal inaccessibility, rough terrain, lack of...

In this presentation, we bring combine the US EPA's indexes of local catchment and watershed integrity (ICI and IWI) with a Biological Condition Gradient (BCG) developed for the Puget Sound, WA. The BCG is an indicator of the ecological condition of streams based on macroinverteb...