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Rapid, Subsurface, In Situ Field Screening of Petroleum Hydrocarbon Contamination using Laser Induced Fluorescence over Optical Fibers.

Lieberman-SH; Theriault-GA; Cooper-SS; Malone-PG; Olsen-RS; Lurk-PW
NIOSH 1991 Feb:57-63
An optical based sensor which can be used for the direct in-situ screening of subsurface chemical contaminants was developed. The system used optical fibers to make remote laser induced fluorescence measurements through a window in the probe tip. The system was able to characterize contaminant plumes that contain compounds which fluoresce when exposed to ultraviolet light. Coupling the optical fiber sensor with the cone penetrometer provided a capability for direct real time sensing of petroleum hydrocarbon compounds in soils. Field tests were conducted at a hazardous waste site contaminated with petroleum oil lubricant. Results indicated that a fiber optic based fluorometer system, in conjunction with a cone penetrometer may be useful for rapid delineation of subsurface petroleum hydrocarbon contamination at hazardous waste sites. The fluorometer system was quantitative for direct determination of fuel products in soil for concentrations ranging from 100 to 10,000 parts per million.
Soil-analysis; Analytical-methods; Screening-methods; Chemical-analysis; Organic-vapors; Environmental-pollution; Fluorescence-spectrometry; Hazardous-materials;
Publication Date
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Conference/Symposia Proceedings;
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NTIS Accession No.
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Field Screening Methods for Hazardous Wastes and Toxic Chemicals. Second International Symposium, February 12-14, 1991. Sponsored by U.S. EPA; U.S. DOE; U.S. Army Toxic and Hazardous Materials Agency; U.S. Army Chemical Research Development and Engineering Center; U.S.A.F.; Florida State Univ.; National Environmental Technology Applications Corp.; and NIOSH