Los Angeles Harbor Field Investigation of Oil and Background Luminescence Signatures.
Abstract
A field investigation of UV laser (pulsed and CW) induced luminescence signatures of site water at five scattered sites in Los Angeles Harbor and one in its principal source of inland inflow, Dominguez Channel, was achieved. The signatures are similar, indicating dominance by one or more common constituents. The peak at about 4500A and shape of the signature suggest dominance by heavier aromatics, probably by oil and grease, among the principal pollutants. Gas chromatograph-mass spectrometer analyses of site samples show light and heavy constituents, some of which are aromatics. Further work is necessary to relate luminescence signatures to composition. Luminescence signatures of light, medium and heavy oils were established as measurable against the strong water luminescence background. Reflectance signatures of oil films on water indicate a luminescent component due to sky scattered daylight and direct sun UV irradiation. Multispectral photography provided a few examples of site supportive information.
Document Details
- Document Type
- Technical Report
- Publication Date
- May 01, 1975
- Accession Number
- ADA016466
Entities
People
- H. Gerald Gross