Related Topics: Water Research

Water Research Products in the Science Inventory

Records 1 to 25 of 1936

Water Biosensor Challenge to Address Toxicity of Water (PRESENTATION)
An ongoing concern for water treatment systems and resource managers is the need to monitor for the presence of increasing number of pollutants from agricultural, municipal, and industrial outfalls that are present in U.S. source waters. The associated environmental compounds can...
Impact of Growth Conditions and Suspension Time on Toxin Release from M. aeruginosa Upon Exposure to Potassium Permanganate (PRESENTATION)
The objective of this work was to assess the effects of KMnO4 on pure cultures of cyanobacteria (Microcystis aeruginosa) in a jar test. Of particular interest was the impact this oxidant has on the release of intracellular toxin from cells as a function of growth conditions in cu...
Microbial pathogens in source and treated waters from drinking water treatment plants in the US (PRESENTATION)
An occurrence survey was conducted on selected pathogens in source and treated drinking water collected from 25 drinking water treatment plants (DWTPs) in the United States. Water samples were analyzed for the protozoa Giardia and Cryptosporidium (EPA Method 1623); the fungi Asp...
Addressing Toxicity of Water using the Challenge Process (PRESENTATION)
Exposure concerns from an increasing number of pollutants in US waters requires the need for better monitoring. The pollutants are diverse and can include pesticides, heavy metals, personal care products, natural toxins such as cyanobacterial toxins, and a host of other organic ...
Defining the relationship between individuals’ aggregate and maximum source-specific exposures (PRESENTATION)
The concepts of aggregate and source-specific exposures play an important role in chemical risk management. The concepts of aggregate and source-specific exposures play an important role in chemical risk management. Aggregate exposure to a chemical refers to combined exposures fr...
Correlation of Traditional Water Quality Parameters with Metal Concentrations in Permeable Pavement Infiltrate (PRESENTATION)
EPA constructed a 4,000-m2 parking lot for research and demonstration of three permeable pavements [permeable interlocking concrete pavers (PICP), pervious concrete (PC), and porous asphalt (PA)] at the Edison Environmental Center in Edison, NJ in 2009. Infiltrate samples from e...
Water System Adaptation to Hydrological Changes: Module 1, Introduction to Water System Adaptation (PRESENTATION)
Contemporary water management requires resilience, the ability to meet ever increasing water needs, and capacity to adapt to abrupt or transient changes in water quality and availability. For this purpose, effective adaptation to extreme hydrological events (e.g. intense storms, ...
Home Plumbing Simulator for the Study of Copper and Lead Corrosion and Release, Disinfectant Demand, Biofilm Activity and General Water Quality (PRESENTATION)
Presentation at the Ohio AWWA meeting, 2017 September.
Developing Sediment Remediation Goals at Superfund Sites Based on Pore Water for the Protection of Benthic Organisms from Direct Toxicity to Non-ionic Organic Contaminants (PUBLISHED REPORT)
This document contains a methodology for developing interstitial water remediation goals (IWRGs) for nonionic organic pollutants (toxicants) in sediments for the protection of benthic organisms. The document provides the basis for using the final chronic values (FCVs) from EPA’s...
Tillamook Estuary Case Study: Local Drivers Influencing Coastal Acidification (PRESENTATION)
US EPA initiated a study in the Tillamook estuary and watershed focused on the impact of changes in watershed land use, ocean conditions, and weather on estuarine water quality and ecosystem goods and services production within the estuary. This project is a collaboration betwee...
Land Use. (BOOK CHAPTER)
Land use in the Narragansett Bay Watershed (NBW) is subject to conversion, and these changes influence the Watershed’s hydrologic functions. Changes of natural habitat such as wetlands and forests to urban lands have impacted how water is delivered to rivers and lakes, to g...
Population (BOOK CHAPTER)
Population growth influences many stressors on Narragansett Bay and its Watershed, including all landscape and chemical stressors discussed in other chapters of this report. In numerous ways, population growth affects the condition of the Bay ecosystem, Watershed ecosystem, and h...
Building a Potential Wetland Restoration Indicator for the Contiguous United States. (JOURNAL)
Wetlands provide key functions in the landscape from improving water quality, to regulating flows, to providing wildlife habitat. Over half of the wetlands in the contiguous United States (CONUS) have been converted to agricultural and urban land uses. However, over the last seve...
Building a Potential Wetland Restoration Indicator for the Contiguous United States (JOURNAL)
Wetlands provide key functions in the landscape from improving water quality, to regulating flows, to providing wildlife habitat. Over half of the wetlands in the contiguous United States (CONUS) have been converted to agricultural and urban land uses. However, over the last seve...
Influences of Coal Ash Leachates and Emergent Macrophytes on Water Quality in Wetland Microcosms (JOURNAL)
The storage of coal combustion residue (CCR) in surface water impoundments may have an impact on nearby water quality and aquatic ecosystems. CCR contains leachable trace elements that can enter nearby waters through spills and monitored discharge. It is important, therefore, to ...
Developing qualitative ecosystem service relationships with the Driver-Pressure-State-Impact-Response framework: A case study on Cape Cod, Massachusetts (JOURNAL)
Understanding the effects of environmental management strategies on society and the environment is critical for evaluating their effectiveness but is often impeded by limited data availability. In this article, we present a method that can help scientists to support environmental...
Refugia Research Coalition: A regional-scale approach for connecting refugia science to natural and cultural resource management (PRESENTATION)
Background / question / methods Warmer air and water temperatures, changing precipitation patterns, and altered fire regimes associated with climate change threaten many important natural and cultural resources. Climate change refugia are areas relatively buffered from contempora...
Seagrass Epiphytes as a Nutrient Stressor Indicator: Towards Development of Threshold Values (PRESENTATION)
Epiphytes on seagrasses have been studied for more than 50 years, and proposed as an indicator of anthropogenic nutrient enrichment for over 30 years. Epiphytes have been correlated with seagrass declines, causally related to nutrient additions in both field and mesocosm experim...
Environmental Quality Index (EQI) (PRESENTATION)
Presentation on the Environmental Quality Index (EQI) • Developed to explore: - associations with adverse health effects -how vario...
Storm Water Management Model Reference Manual Volume II – Hydraulics (PUBLISHED REPORT)
SWMM is a dynamic rainfall-runoff simulation model used for single event or long-term (continuous) simulation of runoff quantity and quality from primarily urban areas. The runoff component of SWMM operates on a collection of subcatchment areas that receive precipitation and gene...
Analysis and Monitoring of Algal Toxins in Fresh and Coastal/Estuarine Environments (PRESENTATION)
Presentation for 2017 Small Systems Workshop Cincinnati OH
Drinking Water Quality in Hospitals and Other Buildings (PRESENTATION)
Drinking water quality entering large buildings is generally adequately controlled by the water utility, but localized problems may occur within building or “premise” plumbing. Particular concerns are loss of disinfectant residual and temperature variability, which may enhance pa...
Fate and Transport of Hydrophobic and Hydrophilic Cyanotoxins through Granular Activated Carbons (abstract) (PRESENTATION)
Cyanobacteria (also known as “blue-green algae”) are microscopic organisms that are found in most bodies of water, which can multiply to form harmful algal blooms (HABs) under favorable conditions (i.e., rich nutrients, strong sunlight, and high temperature). Many genera of cyano...
The Future of Phosphorus for Food Security: Making Media to Recover the Nutrient from Water (abstract) (PRESENTATION)
The abstract is only allowed to be 500 words maximum and is supposed to represent the theme of the conference so I am focusing my information more on the background of why phosphorus is important to recovery then giving a little less detail on the material I've made for this purp...
When and where to intervene? Coastal nutrient loading, groundwater travel times, and estuary dynamics (PRESENTATION)
There is often a difference between the timing of an intervention in a natural system and the resultant impact. Delays in the transport of pollutants from sources, inertia in the effects of policy on economic actors, and long-term memory in natural systems, turn environmental man...