Science Inventory

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With increasing concerns about freshwater cyanobacteria blooms, there is a need to identify which waterbodies are at risk for developing these blooms, especially those that produce cyanotoxins. To address this concern, we developed spatial statistical models using the US National...

This presentation will review the latest research on inputs, budgets, effects, legacies and management related to non-point source nutrient pollution.  Using examples of nitrogen and phosphorus budgets at the national, regional and local scales, Jana Compton from EPA’s...

Wetland restoration and construction are important land management options for retaining nitrogen and phosphorus and thereby improving water quality at local scales (i.e., at nearby streams). However, limited information exists regarding the cumulative influence of wetlands outsi...

Thoughtful science communication is essential for the success of collaborative, transdisciplinary environmental research. We present an innovative evaluation of a four-year pilot project that took a highly engaged and collaborative approach to managing excess nutrients in the Cap...

This is a public presentation on the potential effects of nutrients in smoke on downwind cyanobacteria blooms. Wildfire activity is increasing in the continental U.S. and can be linked to climate change effects, including rising temperatures and more frequent drought conditions. ...

Anthropogenic disturbances have increased the frequency, area, and intensity of eutrophic events in coastal ecosystems, harming seagrass and macrofauna. The Pawcatuck River and Little Narragansett Bay (CT/RI) is a small, shallow estuary with zones of hypoxia due to algal growth. ...

Impervious surface cover increases peak flows and degrades stream health, contributing to a variety of hydrologic, water quality, and ecological symptoms, collectively known as the urban stream syndrome. Strategies to combat the urban stream syndrome often employ engineering appr...

Plastic pollution is ubiquitous worldwide. Smaller pieces of plastic (<5 mm) denominated as microplastics (MPs) are of particular concern because they can be easily transported throughout the environment. As they travel, MPs can adsorb chemicals or nutrients, and develop a biofil...

Reduced tillage management conservation practices (No-till and Reduced-till) are widely adopted in agriculture; however, understanding their overall effectiveness for water quality protection is challenging. A meta-analysis was conducted to understand and quantify the effectivene...

Despite converting to green and electric sources of power, motorized transportation remains dependent upon conventional synthetic rubber tires for operation. Global dependence upon tires produced from natural rubber and petroleum-based compounds, including plastics, represents a ...

Cyanobacterial harmful algal blooms (CyanoHABs) produce excessive amounts of cyanotoxins, mainly microcystins (MCs) and anatoxins (ATXs), significantly threatening aquatic ecosystems and public health. Accurately predicting CyanoHABs is essential to develop effective CyanoHAB pre...

This is a requested presentation for the Association of Clean Water Administrators (ACWA) that discusses how ORD is the research arm of the EPA and provides the scientific foundation for EPA to execute its mandate to protect human health and the environment. An overview of the 6 ...

This presentation will review the latest research on inputs, budgets, effects, legacies and management related to non-point source nutrient pollution.&nbsp; Using examples of phosphorus budgets at the national, regional and local scales, Jana Compton from EPA&rsquo;s Pacific Ecol...

This presentation will provide an overview of the latest research on inputs, budgets, effects, and management related to nutrient pollution.&nbsp; Using examples of nitrogen and phosphorus budgets at the national, regional and local scales, Jana Compton from EPA&rsquo;s Pacific E...

This presentation will review the latest research on inputs, budgets, effects, legacies and management related to non-point source nutrient pollution.&nbsp; Using examples of nutgrient budgets at the national, regional and local scales, Jana Compton from EPA&rsquo;s Pacific Ecolo...

This presentation will review the latest research on inputs, budgets, effects and management related to non-point source nutrient pollution at the EPA&rsquo;s Office of Research and Development.&nbsp; Using examples of nutrient budgets at the national, regional and local scale, J...

The water chemistry of blackwater rivers and streams under natural conditions can be very different from that regularly observed in non-blackwater systems. In the literature, they are generally described as being rather clear (low turbidity), but stained (i.e., tannic water), and...

Nutrient export from agricultural areas has been an environmental concern. Nutrient management practices have been studied/implemented to reduce nutrient losses from agricultural fields. Nutrients are managed based on the 4Rs of nutrient stewardship: apply the right nutrient sour...

The Pawcatuck River Estuary (PRE), composed of the Pawcatuck River and Little Narragansett Bay (CT/RI, USA), is a coastal plain estuary subject to environmental stress. Anthropogenic nutrient loading, watershed land-use changes, and urbanization have contributed to eutrophication...

If a water body in the United States is not as healthy as we&rsquo;ve decided it should be, the most likely cause is nutrient pollution &lt;span style='mso-element:field-begin'&gt;&lt;span style='mso-spacerun:yes'&gt;&nbsp;ADDIN EN.CITE &lt;EndNote&gt;&lt;Cite&gt;&lt;Author&gt;US...

Although nitrogen (N) deposition has decreased in Europe and the United States for decades, &nbsp;considerable areas of the world &nbsp;will likely continue to receive high levels of N deposition in the future. Some soil chemical variables can respond quickly to declining N depos...

Peer review of nutrient assessment approach used in NRSA and other NARS.

In urban systems, a wide variety of processes, including increasing impervious surface cover, road salt application, sewage leaks, and weathering of the built environment, contribute to novel chemical cocktails that are comprised of metals, salts, nutrients, and organic matter. D...

This overview is designed for a general audience without expertise in satellite remote sensing and forecasting. It is meant to highlight how the Cyanobacteria Assessment Network, CyAN , might provide useful real-time data, software, training, annual summary metrics, and 1-week fo...

Data and analysis of water chemistry and lower food web for collaborative report