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Social and Behavioral Sciences Commons

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Full-Text Articles in Social and Behavioral Sciences

Runoff Water Quality And Crop Growth As Affected By Wastewater-Derived Struvite, Machaela Morrison Aug 2023

Runoff Water Quality And Crop Growth As Affected By Wastewater-Derived Struvite, Machaela Morrison

Graduate Theses and Dissertations

Mined phosphate rock, used to produce phosphorus (P) fertilizers, is a finite resource. Struvite (MgNH4PO4 • 6H2O) that has been synthetically produced from a stock solution of known P and nitrogen (N) concentrations has been shown to be an effective, alternative fertilizer-P source for various crops. However, little is known about the runoff-water-quality implications from and the crop response to soil application of struvite created from an actual municipal wastewater source. This study consisted of two objectives: i) to evaluate the effects of soil [i.e., Creldon (Oxyaquic Fragiudalf), Dapue (Fluventic Hapludoll), Roxana (Typic Udifluvent), and Calloway (Aquic Fraglossudalf) series], fertilizer-P …


Method Development For Quantifying Micropollutants In Water At Trace Levels With Diffusive Gradients In Thin-Films Passive Samplers, Michael Bradford Howland May 2023

Method Development For Quantifying Micropollutants In Water At Trace Levels With Diffusive Gradients In Thin-Films Passive Samplers, Michael Bradford Howland

Graduate Theses and Dissertations

The United States (US) Environmental Protection Agency (EPA) issued a proposed National Primary Drinking Water Regulation in March 2023 for six per- and polyfluoroalkyl substances (PFAS), which included maximum contaminant levels (MCLs) of 4.0 ng•L−1 for perfluorooctanoic acid (PFOA) and perfluorooctane sulfonic acid (PFOS). These MCLs were based on current method detection limits (MDLs) for aqueous-phase grab samples achievable at certified analytical labs throughout the US. In June 2022, the US EPA issued the interim lifetime health advisory levels for PFOA and PFOS of 0.004 ng•L−1 and 0.02 ng•L−1, respectively, which presently cannot be reliably quantified using existing PFAS methods. …


Landowners' Perceptions Of Conservation Easements: Implications For Effective Persuasive Communication, Caitlin Cooper May 2023

Landowners' Perceptions Of Conservation Easements: Implications For Effective Persuasive Communication, Caitlin Cooper

Graduate Theses and Dissertations

Conservation easements are one of the most popular voluntary, legally binding programs that allow individual landowners to use their property to protect the environment. There is a definite need for educational and persuasive messaging targeted towards landowners regarding adopting conservation easements. There is currently little to no existing literature specifically related to the attitudes and behaviors landowners possess towards conservation easements. This study aimed to fill a gap in literature by gathering information from landowners in Northwest Arkansas and Northeast Oklahoma, using a quantitative survey. Respondents were asked to identify their awareness-level knowledge about conservation easements, as well as rank …