Field results from the SCAPS laser-induced fluorescence (LIF) sensor for in-situ subsurface detection of petroleum hydrocarbons

David S. Knowles; Stephen H. Lieberman

doi:10.1117/12.224113

9 October 1995 Field results from the SCAPS laser-induced fluorescence (LIF) sensor for in-situ subsurface detection of petroleum hydrocarbons

David S. Knowles, Stephen H. Lieberman

Author Affiliations +

Proceedings Volume 2504, Environmental Monitoring and Hazardous Waste Site Remediation; (1995) https://doi.org/10.1117/12.224113
Event: European Symposium on Optics for Environmental and Public Safety, 1995, Munich, Germany

Abstract

Laser induced fluorescence (LIF) is a powerful technique for in-situ detection of subsurface contamination due to petroleum products. This paper describes the Site Characterization and Analysis Penetrometer System (SCAPS) LIF sensor which combines an LIF spectroscopic system with a cone penetrometer truck, and presents field results from a recent site characterization of a diesel fuel contaminated site. In addition to the LIF sensor measurements performed at the site, 130 soil samples were collected by hollow stem auger with split-spoon sampling and analyzed by EPA approved laboratory methods to validate the fluorescence sensor. The LIF sensor showed 96% agreement with the laboratory analysis on a detect/non- detect basis. Quantitative comparison of the fluorescence and analytical data show a strong correlation, suggesting that the fluorescence sensor may be capable of quantifying the contaminant concentration given a small number of soil samples for calibration.

Citation Download Citation

David S. Knowles and Stephen H. Lieberman "Field results from the SCAPS laser-induced fluorescence (LIF) sensor for in-situ subsurface detection of petroleum hydrocarbons", Proc. SPIE 2504, Environmental Monitoring and Hazardous Waste Site Remediation, (9 October 1995); https://doi.org/10.1117/12.224113

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