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JCCES Successes – The Chlorophyll Fluorometer
Although the application of the chlorophyll fluorometer has been limited to remediation of inorganic contaminants, the IETU/DOE team is investigating its applicability to proposed phytoremediation projects involving TCE/PCE plumes in groundwater. For additional information regarding the chlorophyll fluorometer, contact:
Dr. Peter Richter,
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Chlorophyll fluorescence can be used to measure plant stress and can provide real-time data
concerning the effects of stressors (including the phytoremediation process) on plants. This
instrument and related software measure the plant’s ability to initiate photosynthesis. This
response is an accepted measure of plant “stress” and has been shown, in this project, to
correlate well with heavy metal uptake. The portability and real-time data delivery of this
instrument make it cost-effective for evaluating the status of plants in contaminated environments.
The design of the instrument makes it both powerful and easy to use. By optimizing the
phytoremediation process, this technology can be made more efficient and cost-effective. In June
1997, a progress report entitled, “Development of Field Measurement Program, IETU Training and
Evaluation of Field Performance of Prototype Instrument,” included information about placing
the system into operation, finalizing the measurement program, training of an IETU technician,
and performance of the instrument in the field. This report assisted the IETU/DOE team in the
application of a chlorophyll fluorometer to their inorganic phytoremediation project.