The Effects of Thermal Pollution by the Marshall Steam Station on Dissolved Oxygen and Microbiodiversity in Lake Norman Surface Waters.
Coal-burning power plants are known producers of thermal pollution in nearby bodies of water that they use as cooling ponds. This research
focused on the effects that thermal pollution caused by the Marshall
Steam Station had on Lake Norman, North Carolina. It was found that
dissolved oxygen in the steam station's discharge cove was
decreased by approximately four mg/L as compared to a site ten miles
upstream, and was decreased by about three mg/L as compared to a cove
several hundred yards downstream. Temperatures of the surface water in
the discharge cove was, on average, three degrees Celsius higher than
those of the upstream and downstream testing sites. Phytoplankton traps
were placed at these three sites to examine the microbiodiversity of the
surface waters. It was found that this microbiodiversity was
significantly decreased at the discharge site as compared to the
upstream and downstream sites.
South Carolina Governor's School for Science and Mathematics