Water Quality

Local reservoirs provide most of the drinking water for North Texas. The quality of water in these lakes can be greatly affected by the many chemicals and pollutants that enter local watersheds and wash into the lake everyday.

Though many variables can be measured individually, only living organisms that can respond to the totality of their environment can truly indicate the toxicity of the environment as a whole.

Scientists at UNT have developed biomonitors using clams to warn of possible excess of toxins entering Lake Lewisville. When the clams respond negatively to their environment, water samplers are activated. These samples can be analyzed in a manner that breaks their components down so that the toxic constituents can be identified.

Once a problem is known, and given the position of the biomonitors in the watershed, it may be possible to take corrective measures to reduce the particular toxins entering the lake.

Biological, physical and chemical data are continuously measured at Lake Lewisville and telemetered to UNT for analysis and display in near real-time on the website.

Log onto ECOPLEX and see what the clams are up to!
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Water Quality Primer Biomonitoring Primer
  Links to Water Quality Information


December 16, 2018, 11:06 am chengyang@unt.edu