Index Catalog // ScholarsArchive@OSU

Creator:: Tran, Danielle N.
Abstract:: In the past fifty years, per- and polyfluoroalkyl substances (PFASs) have become alarming global pollutants. In 2019, the United States (U.S.) Environmental Protection Agency (EPA) ultimately classified them as emerging contaminants and established an action plan to address PFAS and protect public health through developing, identifying, monitoring, and remediating current...
Resource Type:: Capstone Project

Creator:: Pape, Timothy
Abstract:: The objective of this dissertation is to examine federally administered soil conservation policy within the United States and the broadly defined Columbia River Basin in the US Northwest. I accomplish this in five chapters. In the first chapter I provide background information for the study. In the second chapter I...
Resource Type:: Dissertation

Creator:: Demaree, David E.
Abstract:: Onsite wastewater treatment systems (OWTS; septic systems, compost toilets, etc.) used to treat wastewater in rural areas have the potential to contaminate groundwater (that is used as a water source) with nitrate. There have been decades of scientific and political conflicts concerning the issue of nitrate from OWTS (NOWTS, pronounced...
Resource Type:: Dissertation

Creator:: Robinson, Kathleen S.
Abstract:: The High Plains Aquifer, a natural resource critical to the United States economic, energy and food security, faces significant sustainability challenges in the coming years. This case study aims to identify the main causes and consequences of unsustainable use of the High Plains Aquifer. The agriculture industry plays the largest...
Resource Type:: Capstone Project

Creator:: Goddard, Amanda L.
Abstract:: Due to threats of secondary salinization caused by increased saltwater intrusion upstream associated with climate change, this thesis examines how salinity affects the development and oviposition site selection habits of three Oregon coastal breeding amphibians, the Roughskin Newt (Taricha granulosa), the Northern Red-legged Frog (Rana aurora) and the Pacific Treefrog...
Resource Type:: Masters Thesis

Creator:: Upton, Tullia L.
Abstract:: Environmental magnetic techniques have been used to discriminate sources of sediments from a variety of natural and anthropogenic sources. In many studies, magnetic properties such as susceptibility, have served as a proxy for heavy metal concentrations. In these cases, there tends to be enhancement of magnetic minerals. The study presented...
Resource Type:: Masters Thesis

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