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Oviedo Vargas

Diana Oviedo Vargas, Ph.D., collects biosolid samples to test for PFAS.

Evaluating the Risk for PFAS Contamination of Surface and Groundwater Through Application of Biosolids in Agroecosystems

 800 450 Stroud Water Research Center

Per- and polyfluoroalkyl substances (PFASs) are a group of thousands of chemicals that are used in a wide range of industrial applications and represent a risk to human health. They…

Evaluating the Effects of Watershed-Scale Agricultural Best Management Practices on Water Quality

 800 532 Stroud Water Research Center

In early 2020, stream bank fencing, forested buffers, and barnyard improvements were installed on Amish farms in Lancaster County, Pa. The farms are nested in a small watershed drained by…

Evaluating and Updating Data Collection Protocols in National Parks of the National Capital Region

 800 532 Stroud Water Research Center

The National Park Service has monitored stream water quality and quantity for more than 15 years in shallow streams located in 10 parks of the National Capital Region Network. This…

Evaluating How Conventional, Conservation, and Organic Farming Management Practices Enhance Soil Health and Improve Water Quality

 800 532 Stroud Water Research Center

This project investigates how different agricultural management practices influence water quality and soil health. Using Rodale Institute’s 37-year-old Farming Systems Trial and a recent transition to organic farming at the…

NASA DEVELOP logo and team member headshots.

Stroud Center and NASA Examine National Park Streams From Space

 820 462 Stroud Water Research Center

Two science powerhouses are joining forces to discover water quality trends
in some of America’s favorite national parks.

Six Stroud Center staff members at a conference.

Sharing Our Science at the National Monitoring Conference

 800 450 Stroud Water Research Center

Along with networking and learning state-of-the-art water quality monitoring techniques, we presented our research to hundreds of water quality specialists.

Diana Oviedo-Vargas downloading data from a sensor located in White Clay Creek to a field laptop.

Stroud Center Scientist to Serve as Nature Conservancy Trustee

 800 450 Stroud Water Research Center

Diana Oviedo Vargas, Ph.D., is to serve as a trustee of the Nature Conservancy in Pennsylvania and Delaware, the conservancy recently announced.

Publication title with image of a mayfly

Respiration regimes in rivers: partitioning source-specific respiration from metabolism time series

 350 210 Stroud Water Research Center

Bertuzzo, E., E.R. Hotchkiss, A. Argerich, J.S. Kominoski, D. Oviedo-Vargas, P. Savoy, R. Scarlett, D. von Schiller, and J.B. Heffernan. 2022. Limnology and Oceanography 67(11): 2374–2388.

Daniel Myers and his dog get a closeup.

Adventures in Geographic Space: Postdoc Daniel Myers Recalls the Wild as He Solves Water Challenges

 800 450 Stroud Water Research Center

On a fateful backcountry internship some years ago, the Stroud Center’s new postdoc, Dan Myers, Ph.D., heard the call of the wild and something more: his life’s mission.

Phytoplankton Dynamics at the Brandywine River

 800 532 Stroud Water Research Center

High-frequency temperature, oxygen, and chlorophyll sensors, canoe float trips, and nutrient monitoring are the tools being used to study how much and how fast algae grow while they travel down…