Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 12 of 12 for “"Freshwater Salinization"”.
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Upstream Population Gradient Drives Freshwater Salinization in the Occoquan Watershed
Increased salinization of inland freshwater resources is present on a global scale, but is pro- gressing rapidly in the densely populated Mid-Atlantic United States. This phenomenon threatens aquatic health, ecosystem services and functionality, and can alter the percep- tion of potable drinking …
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Toward improved assessment of freshwater salinization as a benthic macroinvertebrate stressor
Salinization of freshwaters by human activities is of growing concern globally. Salt pollution can cause adverse effects to aquatic biodiversity, ecosystem function, ecosystem services, and human health. In many regions of the world, and in coal-mining-influenced streams of the temperate forests of …
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Ionic Characterization of Laundry Detergents: Implications for Consumer Choice and Inland Freshwater Salinization
Increased salinity in freshwater systems – also called the Freshwater Salinization Syndrome (FSS) – can have far-ranging implications for the natural and built environment, agriculture, and public health at large. Such risks are clearly on display in the Occoquan Reservoir – a drinking water source …
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Effects of Freshwater Salinization and Associated Base Cations on Bacterial Ecology and Water Quality
Anthropogenic freshwater salinization, which is caused by numerous human activities including agriculture, urbanization, and deicing, impacts an estimated 37% of the contiguous drainage area in the United States. High salt concentrations in brackish and marine environments (~1,500 – 60,000 µS cm-1) …
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Unveiling Causal Links, Temporal Patterns, and System-Level Dynamics of Freshwater Salinization Using Transit Time Distribution Theory
Inland freshwater salinity is rising worldwide and threatens the quality of our water resources, a phenomenon called the freshwater salinization syndrome (FSS). Simultaneously, the practice of indirect potable reuse (IPR) that augments critical water supplies with treated wastewater to enhance …
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Characterizing the Impact of Freshwater Salinization on Engineered Ecosystems: Implications for Performance, Resilience, and Self-Repair Through Phytoremediation
… from road salt application, which contributes to Freshwater Salinization Syndrome (FSS). Since limited research has connected direct measurement of soil and stormwater salinities to biodiversity and phytoremediation potential of salt-tolerant plant species, this thesis aimed to fill this gap. We …
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Using Fuzzy Cognitive Maps to Engage Stakeholders in the Search for Solutions to Emerging Environmental Challenges
Inland freshwater salinization is an emerging environmental problem that threatens freshwater ecosystem health, agricultural productivity, and the sustainability, reliability, and safety of drinking water supplies around the world. This body of work focuses on the Occoquan Reservoir in Northern …
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Evaluating the role of flow and specific conductivity on stream metabolism across a mining-induced salinity gradient in the Appalachian Coalfield
Freshwater salinization is a notable concern for headwater streams in Appalachia with the history of resource extraction in the region. Mountaintop removal/valley fill mining techniques in Appalachia result in the burial of headwater streams and mobilization of ions, specifically SO42-, Ca, and Mg …
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Contextualization and Sodium Diet Implications of Occoquan Reservoir Salinization
Freshwater salinization syndrome is a rising threat globally which results in increased ion concentrations in inland freshwaters. This syndrome threatens healthy aquatic ecosystems and can alter the perception of the potability of finished drinking water. The Occoquan Reservoir, located in Northern …
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Salt in the Wound: Trophic Mismatches Emerge Between Macroinvertebrate Secondary Production and Basal Food Resources Along a Salinity Gradient in Central Appalachian Headwaters
… how functional feeding groups (FFGs) respond to freshwater salinization by measuring macroinvertebrate secondary production across nine streams in the southwestern Virginia and West Virginia portion of the central Appalachian coalfield, with mean annual SC ranges from 16-1,185 μS/cm. Overall, …
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Integrating Taxonomic Meta-Analysis and Mussel Physiology to Assess Secondary Salinization in Appalachian Headwaters and Urban Streams
Secondary salinization from fertilizer application, mining, urbanization, and de-icing salts like sodium chloride (NaCl), is elevating chloride (Cl⁻) and sodium (Na⁺) in streams. While Cl⁻ effects on streams are well-studied, Na⁺ effects are less known. Elevated Cl⁻ levels in the environment can …
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Evaluating the effects of hydrogeologic processes on the fate of salinity and halogens in headwater catchments
… are used to identify sources of salinity to freshwater systems. This approach can broadly distinguish endmember sources of salinity (e.g. road salts from basin brines) from one another, although has proven ineffective in distinguishing saline endmembers originating from the same processes …