Science Inventory

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The National Aquatic Resource Surveys (NARS) program, a collaboration among United States Environmental Protection Agency (US EPA) Office of Water, Office of Research and Development (ORD), and states and tribes, assesses progress towards the objective of the Clean Water Act thro...

Taxonomic data are the foundation of bioassessment and much basic and applied research. Difficulty in morphological species identification, evolving and varying taxon concepts, and nomenclatural changes can lead to significant inconsistencies in taxonomic datasets across analysts...

U.S. EPA released two free tools to help users visualize their air data. REal TIme Geospatial Data Viewer (RETIGO) is an easy to use, web-based tool which requires no coding skills and can be used with any type of measurement device. Users can visualize their data and compare it ...

Per- and polyfluoroalkyl substances (PFAS) are recognized as an urgent public health and environmental threat across the global community.  In response, the United States Environmental Protection Agency (US EPA) has developed a PFAS Strategic Roadmap documenting commitments ...

Data visualization tools that are quick and easy to use, require no coding skills, and can be used with any type of sensor are in high demand.  In addition to visualizing their own data, users often wish to compare the data they collect with other nearby data sources such as...

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...

It is estimated there are more than 500,000 abandoned mines in the United States, and many of the highly toxic and dangerous mines are listed on the Superfund National Priority List (NPL). In EPA Region 8; mines, smelters, and mills make up more than 50% of the NPL sites, and EPA...

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

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

Data visualization tools that are quick and easy to use, require no coding skills, and can be used with any type of sensor are in high demand.  In addition to visualizing their own data, users often wish to compare the data they collect with other nearby data sources such as...

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

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...

Fine particulate matter (PM2.5) resulting from wildland fire is a significant public health risk in the United States (U.S.). The existing stationary monitoring network and the tools used to alert the public of smoke conditions, such as the Air Quality Index or NowCast, are not o...

Wildfire risk to aquatic ecosystems in the Pacific Northwest is a growing concern, but this risk is not equally distributed across the region. Furthermore, risks vary among valued endpoints and may be perceived differently by drinking water providers, forest managers, and fish bi...

Under the best of circumstances, achieving or sustaining optimum ecological conditions in estuaries is challenging. Persistent information gaps in estuarine data make it difficult to differentiate natural variability from potential regime shifts. Long-term monitoring is key for t...

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

Climate change is projected to impact river, lake, and wetland hydrology, with global implications for the condition and productivity of aquatic ecosystems. We integrated Sentinel-1 and Sentinel-2 based algorithms to track monthly surface water extent (2017–2021) for 32 sit...

To identify U.S. lead exposure risk hotspots, we expanded upon geospatial statistical methods from a published Michigan case study. Evaluation of identified hotspots using six lead indices, based on housing age and sociodemographic data, showed moderate-to-substantial agreement w...

Global shifts in climatic conditions and anthropogenic disturbances are dramatically modifying the Earth’s ecosystem. Ensuring water security, availability, and quality within this context largely depends on how accurately we can map Global Surface Water Extents (GWSE). Map...

Environmental decision-making benefits from considering ecosystem services to ensure that aspects of the environment that people rely upon are fully evaluated. By focusing consideration of ecosystem services on final ecosystem goods and services (FEGS), the aspects of the environ...

The U.S. Environmental Protection Agency (EPA) is conducting a national stated preference study that aims to quantify the total economic value (human use and existence value) of water quality policies across the conterminous US (CONUS). Previous work identified the ratio of obser...

Non-floodplain wetlands – those located outside the floodplains – have emerged as integral components to watershed resilience, contributing hydrologic and biogeochemical functions affecting watershed-scale flooding extent, drought magnitude, and water-quality maintena...

The size, abundance, and hydrological variability of headwater streams make mapping their extent and characterizing their temporal dynamics challenging. Yet this information is critical for understanding and managing the ecosystem functions these vulnerable systems provide. Water...

Anthropogenic impacts on lake and stream water quality are well established but have been much less studied in wetlands.  Here we use data from the 2016 National Wetland Condition Assessment to characterize water quality and its relationship to anthropogenic pressure for inl...

Our presentation to EPA's Region 5 Water Quality Monitoring Managers Meeting describes how we made statewide predictions of total phosphorus concentrations in Indiana rivers and streams. We outline the three datasets needed to make such predictions. The first being the Indiana De...