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Evaluating Changes in Fluorescence EEM and Size Spectra During the Degradation of Crude Oil and Dispersant in Seawater

Implementing Organization

University of Southern Mississippi


DWH Project Funding


Known Leveraged Funding


Funding Organization

Gulf of Mexico Research Initiative (GoMRI)

Funding Program

Gulf of Mexico Research Initiative GoMRI Grant Program


Project Category


Project Actions

Physical Aspects Research

Targeted Resources

Human and/or Institutional Capacity

Project Description

Crude oil could be dissolved, oxidized, evaporated, degraded (including microbial and photochemical degradation), and fractionated into hydrocarbon fractions in the marine environment, changing its original optical, chemical and isotopic signatures such as fluorescence excitation-emission characteristics and spectral slope as well as molecular size distribution. However, the quantitative changes in hydrocarbon speciation and thus the chemical and optical properties of seawater during the degradation of oil and dispersant are poorly understood, which makes interpretation of field data challenging.


Laodong Guo
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