Annual radiological environmental operating report, Sequoyah Nuclear Plant, 1986
The Sequoyah Nuclear Plant (SQN) is located in Hamilton County, Tennessee, bounded on the east by Chickamauga Reservoir. This report describes the environmental radiological monitoring conducted in 1986. The preoperational environmental radiological monitoring program established a baseline of data on the distribution of natural and manmade radioactivity in the environment near the plant site. However, seasonal, yearly, and random variations in the data were observed. In order to determine the potential increases in environmental radioactivity levels caused by the plant, comparisons were made between data for indicator stations (those near the plant) and control stations (those remote from the plant) in conjunction with comparisons with preoperational data. Dose estimates were made from concentrations of radioactivity found in samples of environmental media such as air, milk, drinking water, and fish. Doses estimated for persons at the indicator locations were similar to those determined for persons at control locations. Greater than 95 percent of those doses were contributed by the naturally occurring radionuclide K-40, and by Sr-90, and Cs-137 which are long-lived radioisotopes found in fallout from nuclear weapons testing. Increased levels of I-131 were reported in samples of air, milk, and rainwater following the Chernobyl nuclear power station accident. In addition, Ru-103, Cs-137, and Cs-134 were identified in air particulate filters.
- Research Organization:
- Tennessee Valley Authority, Chattanooga (USA). Radiological Control
- OSTI ID:
- 6479586
- Report Number(s):
- TVA/PUB-87/17; ON: DE87900846
- Country of Publication:
- United States
- Language:
- English
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54 ENVIRONMENTAL SCIENCES
AIR
ANIMALS
AQUATIC ORGANISMS
BIOLOGICAL MATERIALS
BODY FLUIDS
DOSES
DRINKING WATER
ENRICHED URANIUM REACTORS
FISHES
FLUIDS
FOOD
GASES
HYDROGEN COMPOUNDS
MATERIALS
MILK
MONITORING
NUCLEAR FACILITIES
NUCLEAR POWER PLANTS
OXYGEN COMPOUNDS
POWER PLANTS
POWER REACTORS
PWR TYPE REACTORS
RADIATION DOSES
RADIATION MONITORING
RADIOACTIVITY
REACTORS
SEQUOYAH-1 REACTOR
SEQUOYAH-2 REACTOR
THERMAL POWER PLANTS
THERMAL REACTORS
VERTEBRATES
WATER
WATER COOLED REACTORS
WATER MODERATED REACTORS