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United States Department of Agriculture

Agricultural Research Service

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AFSRC Picture of the Week, November 12, 2007
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Water samples

AFSRC has developed a great deal of knowledge and understanding of agricultural activity impacts on water quality in karst systems. Tracing of underground water with fluorescent dyes is a common tool for studying the hydrology of karst systems. Three of these sample jars show strong visual evidence of a connection between the point of injection of fluorescein dye and the water collection points.


Further information about karst and water quality research at AFSRC can be obtained from Dr. Douglas Boyer


Photo by Douglas Boyer

AFSRC Picture of the Week Index


Last Modified: 11/16/2007
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