Identifier

etd-10272016-125258

Degree

Master of Science (MS)

Department

Chemistry

Document Type

Access to Thesis Restricted to LSU Campus

Abstract

The Mississippi River high water levels in 2011 and 2016 resulted in the opening of the Bonnet Carré Spillway (BCS), introducing nutrients and terrestrial sourced dissolved organic matter (DOM) into Lake Pontchartrain Estuary. The resulting dynamic change in concentration and composition of the DOM was measured using ultraviolet visible (A254, A350, SUVA254, and S275-295) and fluorescence spectroscopy (excitation emission matrices and fluorescence and biological indices). Additionally, the analysis was enhanced and individual fluorophores of DOM were determined using multi-way parallel factor analysis (PARAFAC). Through comparing the results of the 2011 dataset and 2016 dataset, similarities in the DOM composition during diversions were determined and variations of the overall DOM composition were identified and predicted to be the result in variations of temperature, sunlight, and rain fall.

Date

2016

Document Availability at the Time of Submission

Student has submitted appropriate documentation to restrict access to LSU for 365 days after which the document will be released for worldwide access.

Committee Chair

Cook, Robert L.

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