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Sensors 2002, 2(1), 23-34; doi:10.3390/s20100023

In-Situ Chemiresistor Sensor Package for Real-Time Detection of Volatile Organic Compounds in Soil and Groundwater

*  and
Sandia National Laboratories, P.O. Box 5800, Albuquerque, NM 87185, USA
* Author to whom correspondence should be addressed.
Received: 14 December 2001 / Accepted: 10 January 2002 / Published: 30 January 2002
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This paper presents the development of a real-time microsensor-based monitoring system that can be used to detect and characterize volatile organic compounds in soil and groundwater. The system employs an array of polymer-based microsensors (chemiresistors) packaged in a waterproof housing that is designed to protect the sensor from harsh subsurface environments, including completely water-saturated conditions. The sensors and packaging have been tested in field and laboratory environments, and characterization methods are being developed that utilize contaminant-transport models and time-dependent, in-situ sensor data to identify the location of the contaminant source.
Keywords: In-situ; hydrocarbon; real-time; polymer; contaminant In-situ; hydrocarbon; real-time; polymer; contaminant
This is an open access article distributed under the Creative Commons Attribution License (CC BY) which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Ho, C.K.; Hughes, R.C. In-Situ Chemiresistor Sensor Package for Real-Time Detection of Volatile Organic Compounds in Soil and Groundwater. Sensors 2002, 2, 23-34.

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