scholarly journals HYDROTHERMAL MONITORING: SURRY NUCLEAR POWER PLANT

1974 ◽  
Vol 1 (14) ◽  
pp. 143
Author(s):  
C.S. Fang ◽  
G. Parker ◽  
W. Harrison
Keyword(s):  
Power Plant ◽  
Nuclear Power Plant ◽  
Thermal Effects ◽  
Nuclear Power ◽  
Monitoring Program ◽  
First Year ◽  
James River ◽  
Background Data ◽  
Monitoring Effort ◽  
One Year

A hydrothermal monitoring program has been designed and deployed to gather data on the temperature distribution in the tidal James River near the outfall of the Surry Nuclear Power Plant at Surry, Virginia, U.S.A. Monitoring to date has included two years of background data (1971 and 1972) taken prior to plant operation, and one year (19 73) of data with the plant in operation. The results of the first year post operational monitoring effort has been compared with the pre-operation background data and with the thermal effects that were predicted from studies by Carpenter and Pritchard on the James River Hydraulic Model at Vicksburg, Mississippi.

scholarly journals Thermal effects on heterotrophic processes in a coastal ecosystem adjacent to a nuclear power plant

2006 ◽  
Vol 309 ◽  
pp. 55-65 ◽  
Author(s):  
FK Shiah ◽  
TH Wu ◽  
KY Li ◽  
SJ Kao ◽  
YF Tseng ◽  
...  
Keyword(s):  
Power Plant ◽  
Nuclear Power Plant ◽  
Thermal Effects ◽  
Nuclear Power ◽  
Coastal Ecosystem

scholarly journals Cytogenetic effects in the needles intercalar meristem of Japanese red pine in the remote period after the Fukushima NPP accident

2020 ◽  
Vol 18 (4) ◽  
pp. 483-492
Author(s):  
Denis V. Vasiliev ◽  
Stanislav A. Geraskin ◽  
Vasyl I. Yoschenko ◽  
Maria A. Lychenkova ◽  
Kenji Nanba
Keyword(s):  
Power Plant ◽  
Nuclear Power Plant ◽  
Apical Dominance ◽  
Nuclear Power ◽  
Red Pine ◽  
First Year ◽  
Cytogenetic Abnormalities ◽  
Absorbed Doses ◽  
Japanese Red Pine ◽  
Intercalary Meristem

Background. The study of the long-term effects of chronic radiation exposure on plants and animals, which are still the subject of scientific discussion, is necessary to understand the consequences of radiation accidents. After the Fukushima nuclear power plant accident, some of the young pines and spruces showed an increased frequency of apical dominance cancelling. The most probable cause of the observed morphoses is associated with damage to the apical meristem of coniferous plants by radiation in the first year of the accident, when they received the highest absorbed doses. If this hypothesis is true, then even 8 years after the accident it will be possible with high degree of probability to detect an increased level of cytogenetic abnormalities in the intercalary meristem of needles of plants from these populations. The aim of this work was to verify this hypothesis. Materials and methods. Five populations of Japanese red pine from territories contaminated with radionuclides as a result of the accident at the Fukushima nuclear power plant were investigated. The frequency and spectrum of cytogenetic abnormalities in the intercalary meristem of needles were determined by the ana-telophase analysis. Results. The frequency of aberrant cells in the needles intercalary meristem of Japanese red pine from the contaminated with radionuclides territory statistically significantly exceeds the control level in all impact sites and increases along with the dose rate. Although there is no correlation between the frequency of cytogenetic abnormalities in needles and the presence of cancellation of apical dominance in plants, all pine populations from radioactively contaminated territories are characterized by an increased frequency of both cytogenetic abnormalities and morphoses associated with the cancellation of apical dominance. Conclusion. Radiation damage to the apical meristems of conifers in the first year of the accident, when they received the highest absorbed doses, is the most likely cause of the increased frequency of cancellation of apical dominance in the studied populations of Japanese red pine from the zone affected by the accident at the Fukushima nuclear power plant.

scholarly journals Radiocarbon Releases At the Krško Nuclear Power Plant

Radiocarbon ◽  
1997 ◽  
Vol 39 (3) ◽  
pp. 285-292 ◽  
Author(s):  
Barbara Vokal ◽  
Ivan Kobal
Keyword(s):  
Power Plant ◽  
Nuclear Power Plant ◽  
Tree Rings ◽  
Indoor Air ◽  
Nuclear Power ◽  
Monitoring Program ◽  
Pressurized Water Reactor ◽  
Pressurized Water ◽  
Water Reactor ◽  
Radioactivity Monitoring

Since 1991, radiocarbon analyses of exhaust air have been part of the regular radioactivity monitoring program at the Krško Nuclear Power Plant (NPP), a Westinghouse 632 MWe pressurized water reactor (PWR). Activity of CO2 and hydrocarbons has been identified; the former contributes ca. 43%. A normalized release of total 14C of 0.219 TBqGWe−1a−1 was obtained. Indoor air 14C concentrations in selected rooms inside the plant have generally been <5 Bq m−3, although rare peaks of >1000 Bq m−3 may be reached. Tree rings have shown slight enhanced 14C activity due to the operation of the plant.

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