Related Topics: Health Research

Health Research Products in the Science Inventory

Records 1 to 25 of 25

Nitrogen input inventory in the Nooksack-Abbotsford-Sumas Transboundary Region: Key component of an international nitrogen management study. (PRESENTATION)
Background/Question/Methods: Nitrogen (N) is an essential biological element, so optimizing N use for food production while minimizing the release of N and co-pollutants to the environment is an important challenge. The Nooksack-lower Fraser Valley, spanning a portion of the w...
Nitrogen input inventory in the Nooksack-Abbotsford-Sumas Transboundary Region: Key component of an international nitrogen management study (PRESENTATION)
Nitrogen (N) is an essential biological element, so optimizing N use for food production while minimizing the release of N and co-pollutants to the environment is an important challenge. The Nooksack-Abbotsford-Sumas Transboundary (NAS) Region, spanning a portion of the western...
Canadian-US Demonstration Project Towards an International Nitrogen Assessment System (PRESENTATION)
Bellingham Bay will provide the test case for an international nitrogen (N) management system for North America. Spanning a portion of the western interface of the U.S. and Canada, the region supports intensive agriculture, freshwater and estuarine fisheries, diverse wildlife, ci...
Ecosystem services impacts associated with environmental reactive nitrogen release in the United States (PRESENTATION)
Nitrogen release to the environment from human activities can have important and costly impacts on human health, recreation, transportation, fisheries, and ecosystem health. Recent efforts to quantify these damage costs have identified annual damages associated with reactive nit...
Economic Tools for Managing Nitrogen in Coastal Watersheds (PUBLISHED REPORT)
Watershed managers are interested in using economics to communicate the value of estuarine resources to the wider community, determine the most cost-effective means to reduce nitrogen pollution, and evaluate the benefits of taking action to improve coastal ecosystems. We spoke to...
Is it working? A look at the changing nutrient practices in the Southern Willamette Valley's Groundwater Management Area (PRESENTATION)
Groundwater nitrate contamination affects thousands of households in the southern Willamette Valley and many more across the Pacific Northwest. The southern Willamette Valley Groundwater Management Area (SWV GWMA) was established in 2004 due to nitrate levels in the groundwater ...
N-Sink: A Tool to Identify Nitrogen Sources and Sinks within aWatershed Framework (COMMUNICATION PRODUCT)
N-Sink is a customized ArcMap© program that provides maps of N sourcesand sinks within a watershed, and estimates the delivery efficiency of N movement from sources to the watershed outlet. The primary objective of N-Sink is to assist land use planners, watershed managers, and la...
How to Calculate Your Institution's Nitrogen Footprint (EXTRAMURAL DOCUMENT)
The Nitrogen Footprint Tool (NFT) allows institutions to estimate and manage their nitrogen footprint, and EPA’s Sustainable and Healthy Communities program is supporting an effort to test and expand this approach at multiple colleges, universities and institutions across t...
Effects of stormwater management and stream restoration on watershed nitrogen retention (JOURNAL)
Restoring urban infrastructure and managing the nitrogen cycle represent emerging challenges for urban water quality. We investigated whether stormwater control measures (SCMs), a form of green infrastructure, integrated into restored and degraded urban stream networks can influ...
Is it working? A look at the changing nutrient practices in the Southern Willamette Valley’s Groundwater Management Area (PRESENTATION)
Groundwater nitrate contamination affects thousands of households in the southern Willamette Valley and many more across the Pacific Northwest. The southern Willamette Valley Groundwater Management Area (SWV GWMA) was established in 2004 to address the occurrence of high groundw...
Tracking the fate of watershed nitrogen: The “N-Sink” Web Tool and Two Case Studies (PUBLISHED REPORT)
This product describes the application of a web-based decision support tool, N-Sink, in two case study watersheds. N-Sink is a customized ArcMap© program that provides maps of N sourcesand sinks within a watershed, and estimates the delivery efficiency of N movement from sou...
Adaptation of a Weighted Regression Approach to Evaluate Water Quality Trends in Tampa Bay, Florida (PRESENTATION)
The increasing availability of long-term monitoring data can improve resolution of temporal and spatial changes in water quality. In many cases, the fact that changes have occurred is no longer a matter of debate. However, the relatively simple methods that have been used to ev...
A Decision Support Tool to Evaluate Sources and Sinks of Nitrogen within a Watershed Framework (PRESENTATION)
Human transformation of the nitrogen (N) cycle is causing a number of environmental and human health problems. Federal, state and local authorities focusing on management of N loadings face both technical and non-technical challenges. One technical issue is that we need a bette...
Lessons Learned from the Bay Region Atmospheric Chemistry Experiment (BRACE) and Implications for Nitrogen Management of Tampa Bay (JOURNAL)
Results from air quality modeling and field measurements made as part of the Bay Region Atmospheric Chemistry Experiment (BRACE) along with related scientific literature were reviewed to provide an improved estimate of atmospheric reactive nitrogen (N) deposition to Tampa Bay, to...
Utilizing Physical Input-Output Model to Inform Nitrogen related Ecosystem Services (PRESENTATION)
Here we describe the development of nitrogen PIOTs for the midwestern US state of Illinois with large inputs of nitrogen from agriculture and industry. The PIOTs are used to analyze the relationship between regional economic activities and ecosystem services in order to identify...
Impacts of drainage water management on subsurface drain flow, nitrate concentration, and nitrate loads in Indiana (JOURNAL)
Drainage water management is a conservation practice that has the potential to reduce drainage outflow and nitrate (NO3) loss from agricultural fields while maintaining or improving crop yields. The goal of this study was to quantify the impact of drainage water management on dra...
OPPORTUNITIES IN NITROGEN MANAGEMENT RESEARCH; IMPROVING APPLICATIONS FOR PROVEN TECHNOLOGIES AND IDENTIFYING NEW TOOLS FOR MANAGING NITROGEN FLUX AND INPUT IN ECOSYSTEMS (PUBLISHED REPORT)
The presence and distribution of undesirable quantities of bioavailable nitrogenous compounds in the environment are issues of long-standing concern. Importantly for us today, deleterious effects associated with high levels of nitrogen in the ecosystem are becoming everyday news...
DENITRIFICATION AND NITROGEN DYNAMICS IN SEDIMENTS OF A MID-ATLANTIC INCISED STREAM DEPOSITED WITH DEEP LEGACY SEDIMENTS. (PRESENTATION)
Excess legacy sediments deposited in former impounded streams frequently bury Holocene pre-settlement wetlands, decrease in-situ nitrogen removal, and increase nitrogen transport downstream, particularly where deep incised channels limit sediment-water interactions. This has prom...
Evaluating Ecosystem Services Provided by the Albemarle-Pamlico (NC) Estuary System in Response to Watershed Nitrogen Management (PRESENTATION)
The Albemarle-Pamlico Watershed and Estuary Study (APWES) is part of the USEPA Ecosystem Services Research Program. The mission of the APWES is to develop ecosystem services science to inform watershed and coastal management decisions in the Albemarle-Pamlico watershed and estuar...
Macrophyte presence is an indicator of enhanced denitrification and nitrification in sediments of a temperate restored agricultural stream (JOURNAL)
Stream macrophytes are often removed with their sediments to deepen stream channels, stabilize channel banks, or provide habitat for target species. These sediments may support enhanced nitrogen processing. To evaluate sediment nitrogen processing, identify seasonal patterns, and...
U.S. ENVIRONMENTAL PROTECTION AGENCY RESEARCH AND TECHNICAL SUPPORT NEEDS RELATED TO CONCEPTUAL MODEL DEVELOPMENT FOR SUBSURFACE REACTIVE TRANSPORT MODELING OF INORGANIC CONTAMINANTS, RADIONUCLIDES, AND NUTRIENTS (PRESENTATION)
EPA's Office of Research and Development is responsible to EPA's Office of Solid Waste to provide research and technical support for waste site closures and the development of technical guidance in support of environmental regulations and programmatic policies. ORD is also respo...
BAY REGION ATMOSPHERIC CHEMISTRY EXPERIMENT (BRACE) (PRESENTATION)
The Tampa Bay Estuary Program (TBEP) was formed in 1991 to assist the community in developing a comprehensive plan to restore and protect Tampa Bay. The ecological indicator of the health of the Bay is the coverage of seagrasses, historically in decline, which are important to...
A CASE STUDY OF THE REFERENCE CONDITION APPROACH TO NITROGEN MANAGEMENT IN ESTUARIES (PRESENTATION)
One way to estimate estuarine response to changes in nitrogen loading in coastal systems is by using a reference approach. This talk details the application of paleoecological analysis and use of historical data to estimate reference loads of nitrogen to New Bedford Harbor (NBH),...
DEVELOPING AN INTEGRATED ASSESSMENT OF HYPOXIA IN THE NORTHERN GULF OF MEXICO (PRESENTATION)
Hypoxia is the condition in which dissolved oxygen levels are below that necessary to sustain most animal life. The largest zone of oxygen depletion in the US coastal waters is found in the northern Gulf of Mexico (NGOM) on the LA/TX continental shelf. In response to growing publ...
HYPOXIA IN THE GULF OF MEXICO: ASSESSING AND MANAGING RISKS FROM NONPOINT SOURCE POLLUTANTS IN THE MISSISSIPPI RIVER BASIN (PRESENTATION)
. Hypoxia is the condition in which dissolved oxygen levels are below that necessary to sustain most animal life. The largest zone of oxygen depletion in U.S. coastal waters is found in the northern Gulf of Mexico (NGOM) on the Louisiana/Texas continental shelf. In response to...