Optical properties of chromophoric dissolved organic matter (CDOM) in surface and pore waters adjacent to an oil well in a southern California salt marsh
Biodegradation
; Biogeochemistry
; Biological materials
; Fluorescence
; Oil well flooding
; Oil wells
; Organic compounds
; Surface waters
; Water
; Wetlands
; CDOM
; Chromophoric dissolved organic matter
; EEMS
; Fluorescence indices
; Fluorescence spectra
; Microbial activities
; Microbial degradation
; Salt marshes
; Optical properties
; chromophoric dissolved organic matter
; dissolved organic matter
; ferrous ion
; soil water
; surface water
; unclassified drug
; organic compound
; sodium chloride
; water
; water pollutant
; dissolved organic matter
; microbial activity
; oil well
; optical property
; porewater
; saltmarsh
; surface water
; aroma
; Article
; California
; concentration (parameters)
; controlled study
; decomposition
; fluorescence analysis
; geographic distribution
; microbial activity
; microbial degradation
; molecular weight
; oil field
; salt marsh
; water analysis
; water quality
; analysis
; chemistry
; environmental monitoring
; fluorescence
; oil and gas field
; procedures
; spectrofluorometry
; water pollutant
; wetland
; California
; United States
; California
; Environmental Monitoring
; Fluorescence
; Oil and Gas Fields
; Organic Chemicals
; Sodium Chloride
; Spectrometry, Fluorescence
; Water
; Water Pollutants, Chemical
; Wetlands
Scopus学科分类:
Agricultural and Biological Sciences: Aquatic Science
; Earth and Planetary Sciences: Oceanography
; Environmental Science: Pollution
英文摘要:
Chromophoric dissolved organic matter (CDOM) optical properties were measured in surface and pore waters as a function of depth and distance from an oil well in a southern California salt marsh. Higher fluorescence and absorbances in pore vs. surface waters suggest soil pore water is a reservoir of CDOM in the marsh. Protein-like fluorophores in pore waters at distinct depths corresponded to variations in sulfate depletion and Fe(II) concentrations from anaerobic microbial activity. These variations were supported by fluorescence indexes and are consistent with differences in optical molecular weight and aromaticity indicators. Fluorescence indices were consistent with autochthonous material of aquatic origin in surface waters, with more terrestrial, humified allochthonous material in deeper pore waters. CDOM optical properties were consistent with significantly enhanced microbial activity in regions closest to the oil well, along with a three-dimensional excitation/emission matrix fluorescence spectrum peak attributable to oil, suggesting anaerobic microbial degradation of oil. � 2016 Elsevier Ltd
Schmid College of Science and Technology, Chapman University, One University Drive, Orange, CA, United States
Recommended Citation:
Bowen J.C.,Clark C.D.,Keller J.K.,et al. Optical properties of chromophoric dissolved organic matter (CDOM) in surface and pore waters adjacent to an oil well in a southern California salt marsh[J]. Marine Pollution Bulletin,2017-01-01,114(1)