Related Topics: Water Research

Water Research Products in the Science Inventory

Records 1 to 25 of 4692

Using Side-scan Sonar to Characterize and Map Physical Habitat and Anthropogenic Underwater Features in the St. Louis River. (poster) (PRESENTATION)
Characterizing underwater habitat and other features is difficult and costly, especially in large river systems. The St. Louis River is the largest US tributary to Lake Superior and the lower portion consists of a 48.5 km2 complex of wetlands, tributaries, and bays. We surveyed 8...
Chloramination of Concentrated Drinking Water for Disinfection Byproduct Mixtures Creation- Indianapolis (PAPER IN NON-EPA PROCEEDINGS)
Complex mixtures of disinfection by-products (DBPs) are formed when the disinfectant oxidizes constituents (e.g., natural organic matter (NOM) and organic pollutants) found in the source water. Since 1974, over 600 DBPs have been identified in drinking water. Despite intense iden...
The Challenges of PFAS Remediation (JOURNAL)
Many military bases and their surrounding communities are impacted by contamination with per- and polyfluoroalkyl substances (PFAS) from Aqueous Film-Forming Foams (AFFFs). Soil sorption technologies provide a promising solution to immobilize PFAS in the soil and prevent groundwa...
Environmental effects of ozone depletion, UV radiation and interactions with climate change: UNEP Environmental Effects Assessment Panel, update 2017 (JOURNAL)
The Environmental Effects Assessment Panel (EEAP) is one of three Panels of experts that inform the Parties to the Montreal Protocol. The EEAP focuses on the effects of UV radiation on human health, terrestrial and aquatic ecosystems, air quality, and materials, as well as on the...
Short term exposure to elevated pCO2 and hypoxia affects the cellular homeostasis of grass shrimp, Palaemonetes pugio (PRESENTATION)
Estuarine organisms are adapted to frequent changes in temperature, salinity, pH, and dissolved oxygen (DO) levels. The high productivity of an estuary contributes to large changes in environmental conditions, with organismal respiration enhancing hypoxic zones, and elevating pCO...
Attributes of Successful Nutrient Management? - Implications for Recovery of Indian River Lagoon (PRESENTATION)
This presentation was an invited keynote address, which was based on a published paper: Gross, C. and J. D. Hagy, 3rd (2017). "Attributes of successful actions to restore lakes and estuaries degraded by nutrient pollution." J Environ Manage 187: 122-136. As more succes...
Combined effects of acidification and hypoxia on the estuarine ctenophore, Mnemiopsis leidyi (PRESENTATION)
Estuaries are transitive zones which experience large fluctuations in environmental parameters (temperature, dissolved oxygen, pH, etc.). The interactive effects of reduced dissolved oxygen (DO) and elevated pCO2 on estuarine organisms is not currently well understood. Ctenophore...
OHIO RIVER BASIN CC PILOT STUDY FORMULATING CLIMATE CHANGE (CC) MITIGATION/ADAPTATION STRATEGIES THROUGH REGIONAL COLLABORATION WITH THE OHIO RIVER BASIN ALLIANCE, TASK 4 - Corps of Engineers report - CWTS 2017-01 (PUBLISHED REPORT)
As part of a Study Team, Elly Best was invited to provide expert technical opinion on aquatic and terrestrial ecosystem ecology for USACE Climate Change Pilot project ‘Formulating Climate Change Mitigation/Adaptation Strategies through Regional Collaboration with the Ohio R...
Homogenization of vegetation structure across residential neighborhoods: effects of climate, urban morphology, and socio-economics (PRESENTATION)
Climate is a key driver regulating vegetation structure across rural ecosystems. In urban ecosystems, multiple interactions between humans and the environment can have homogenizing influences, confounding the relationship between vegetation structure and climate. In fact, vegetat...
IRIS Assessment Plan for Uranium (Scoping and Problem Formulation Materials) (IRIS ASSESSMENT)
In January 2018, EPA released the <em>IRIS Assessment Plan for Uranium (Oral Reference Dose) (Scoping and Problem Formulation Materials)</em>. An IRIS Assessment Plan , or IAP communicates to the public the plan for assessing each individual chemical and includes summary informat...
Water quality trends following anomalous phosphorus inputs to Grand Bay, Mississippi, USA (JOURNAL)
Grand Bay National Estuarine Research Reserve (GBNERR) is a 7500 ha protected area in Jackson County, MS. In 2005, a levee breach at a fertilizer manufacturing facility released highly acidic and phosphate—rich wastewater into the reserve. A second spill occurred in September 201...
Better Water Demand and Pipe Description Improve the Distribution Network Better Water Demand and Pipe Description Improve the Distribution Network Modeling Results (PAPER IN NON-EPA PROCEEDINGS)
Distribution system modeling simplifies pipe network in skeletonization and simulates the flow and water quality by using generalized water demand patterns. While widely used, the approach has not been examined fully on how it impacts the modeling fidelity. This study intends to ...
Does the study fit? Matching economic analyses to coastal management questions and communication needs (PRESENTATION)
In managing U.S. estuaries, as well as throughout ocean and coastal governance, there is an increasing call for economic research to inform decisions and to communicate the values of environmental resources to local communities, policy makers, and other stakeholders. Watershed ma...
Human Dimensions of Water Quality: Aligning Human Use and Perceptions with Biophysical Measurements (PRESENTATION)
Nutrient overenrichment is a significant problem in coastal waterbodies, particularly estuaries, across the United States. At the Atlantic Ecology Division of the U.S. EPA, we are working on an interdisciplinary project to understand the impacts of nutrient overenrichment on Cape...
An Assessment of Potential Mining Impacts on Salmon Ecosystems of Bristol Bay, Alaska (Final Report) (PUBLISHED REPORT)
The Bristol Bay watershed in southwestern Alaska supports the largest sockeye salmon fishery in the world, is home to 25 federally recognized tribal governments, and contains large mineral resources. The potential for large-scale mining activities in the watershed has raised conc...
Hydrologic Landscape Classification to Estimate Bristol Bay Watershed Hydrology (PRESENTATION)
The use of hydrologic landscapes has proven to be a useful tool for broad scale assessment and classification of landscapes across the United States. These classification systems help organize larger geographical areas into areas of similar hydrologic characteristics based on cl...
An Assessment of Potential Mining Impacts on Salmon Ecosystems of Bristol Bay, Alaska (Second External Review Draft) (PUBLISHED REPORT)
<strong>[UPDATE]</strong> In March 2014, EPA released a response to public comments on the second draft document, "An Assessment of the Potential Mining Impacts on Salmon Ecosystems of Bristol Bay, Alaska" (see downloads). In Jan 2014, EPA released a response to peer review comme...
An Assessment of Potential Mining Impacts on Salmon Ecosystems of Bristol Bay, Alaska (First External Review Draft) (PUBLISHED REPORT)
<strong>[UPDATE]</strong> In March 2014, EPA released a response to public comments on the draft document, "An Assessment of the Potential Mining Impacts on Salmon Ecosystems of Bristol Bay, Alaska" (see downloads). In Jan 2014, EPA released a response to peer review comments on ...
Metrics for assessing freshwater fish in Narragansett Bay (PRESENTATION)
Freshwater fish are ecologically important in stream ecosystems, and they provide significant value to humans. Historically, the streams and rivers of southern New England supported moderately diverse and abundant assemblages of native fishes. Currently, these habitats are impact...
Establishing Design Storm Values from Climate Models in Coastal Regions: Challenges and Opportunities (PAPER IN NON-EPA PROCEEDINGS)
Dynamic interactions of atmospheric and hydrological processes result in large spatiotemporal changes of precipitation and wind speed in coastal storm events under both current and future climates. This variability can impact the design and sustainability of water infrastructure ...
Study of Disinfectant Penetration in a Drinking Water Storage Tank Sediment Using Microelectrodes- Indianapolis (PAPER IN NON-EPA PROCEEDINGS)
Sediment accumulation in water storage facilities causes water quality degradation issues, including enhanced biological growth and more rapid disinfectant decay. For chloramine systems, sediment may harbor nitrifying bacteria, feeding on ammonia from monochloramine decay and dem...
Carbon Stable Isotope Values in Plankton and Mussels Reflect Changes in Carbonate Chemistry Associated with Nutrient Enhanced Net Production (JOURNAL)
Coastal ecosystems are inherently complex and potentially adaptive as they respond to changes in nutrient loads and climate. We documented the role that carbon stable isotope (&delta;13C) measurements could play in understanding that adaptation with a series of three Ecostat (i.e...
A field observation of rotational feeding by Neogobius melanostomus (JOURNAL)
Video documentation was obtained of the invasive benthic fish, Neogobius melanostomus, the round goby, feeding on crushed dreissenid mussels at a depth of 12 m in Georgian Bay of Lake Huron, Canada. Gobies used rotational or twist feeding to tear away particles from crushed musse...
The effect of a loss of model structural detail due to network skeletonization on contamination warning system design: case studies (JOURNAL)
Journal article
Watershed Management Optimization Support Tool (WMOST) v3: Theoretical Documentation (PUBLISHED REPORT)
The Watershed Management Optimization Support Tool (WMOST) is a decision support tool that facilitates integrated water management at the local or small watershed scale. WMOST models the environmental effects and costs of management decisions in a watershed context, accounting fo...