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Oviedo Vargas

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

Study Points to Farmland as Possible Source of PFAS in Fish

 800 600 Stroud Water Research Center

The Stroud Center and the Center for PFAS Solutions have been studying how much biosolids are contaminating farmland and adjacent waters since 2021.

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Quantification of PFAS in soils treated with biosolids in ten northeastern US farms

 350 210 Stroud Water Research Center

Oviedo-Vargas, D., J. Anton, S. Coleman-Kammula, and X. Qin. 2025. Scientific Reports 15: Article 5582.

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Seasonal variation in land cover estimates reveals sensitivities and opportunities for environmental models

 350 210 Stroud Water Research Center

Myers, D.T., D. Jones, D. Oviedo-Vargas, J.P. Schmit, D.L. Ficklin, and X. Zhang. 2024. Hydrology and Earth System Sciences 28(23): 5295–5310.

A community science volunteers stands next to an EnviroDIY Monitoring Station on the banks of a small stream.

Study: Community Science Can Aid Water Resource Monitoring

 800 450 Stroud Water Research Center

After examining water quality data from community scientists, researchers say it has value, but volunteers need support.

Boulder Bridge in the fall at Rock Creek National Park.

Conserving National Park Streams

 800 450 Stroud Water Research Center

The Stroud Center has been collaborating in the National Capital Region to support monitoring and analysis of park stream ecosystems.

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Synergistic water quality and soil organic carbon sequestration benefits of winter cover crops

 350 210 Stroud Water Research Center

Zhang X., Y. Wang, S. Lee, K. Liang, K. Zhao, G.W. McCarty, J.G. Alfieri, G.E. Moglen, W.D. Hively, D.T. Myers, D. Oviedo-Vargas, T.V. Nguyen, A.L. Hinson, L. Du, and X.X. Romeiko. 2024. Journal of Environmental Management 371: 123104.

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Advancing freshwater science with sensor data collected by community scientists

 350 210 Stroud Water Research Center

Oviedo-Vargas, D., M. Peipoch, S.H. Ensign, D. Bressler, D.B. Arscott, and J.K. Jackson. 2024. Frontiers in Ecology and the Environment 22(6): e2748.

Watershed Awareness Using Technology and Environmental Research for Sustainability (WATERS)

 800 532 Stroud Water Research Center

For this project, educators develop and pilot a new national curriculum and extensive learning resources using principles of universal design for learning in California, Pennsylvania, and Virginia, with special attention…

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Agricultural soil microbiomes differentiate in soil profiles with fertility source, tillage, and cover crops

 350 210 Stroud Water Research Center

Bier, R.L., M. Daniels, D. Oviedo-Vargas, M. Peipoch, J.R. Price, E. Omondi, A. Smith, and J. Kan. 2024. Agriculture, Ecosystems & Environment 368: 109002.

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To achieve the Clean Water Act’s goals, prioritize upstream ecology

 350 210 Stroud Water Research Center

Ensign, S.H., D.B. Arscott, M. Daniels, C. Dow, J.K. Jackson, D. Oviedo-Vargas, and M. Peipoch. 2024. Water Resources IMPACT 26(3): 19–21.