Abstract
The paper summarizes results of investigation of the current state of radioactive contamination on site being under consideration for planned nuclear power plant in northern Poland. Thanks to use of sequential procedure it was possible to determine activity concentrations for radioisotopes of nine elements, both natural and artificial. Results show that observed levels of radioactive contamination are rather typical for central Europe and global fallout is dominant factor of presence of artificial radionuclides. The total deposition for artificial radionuclides revealed maxima equal to 1747 ± 121 Bq/m2 for 137Cs, 3854 ± 158 Bq/m2 for 90Sr, 101 ± 23 mBq/m2 for 237Np, 57.7 ± 6.0 Bq/m2 for 241Am, 3.27 ± 0.80 Bq/m2 for 238Pu and 68.5 ± 5.0 Bq/m2 for 239+240Pu.
Highlights
Poland is approaching to join the countries possessing nuclear power plants (NPPs)
The paper summarizes results of investigation of the current state of radioactive contamination on site being under consideration for planned nuclear power plant in northern Poland
Present state of environmental monitoring in Poland is mostly affected by lesson learnt from Chernobyl accident, where the most important radionuclides in the fallout were caesium isotopes: 137Cs and 134Cs
Summary
Poland is approaching to join the countries possessing nuclear power plants (NPPs) This opens new challenges to environmental radioactivity studies. For many years in our laboratory we have been developing sequential measurement procedure, which allows us to measure activity concentrations of many radionuclides in a single environmental sample [1, 2]. Dissolution of the sample often requires massive efforts and man power All this supports concept of developing a single, sequential radiochemical procedure, which applied to a single environmental sample, after single mineralization, can give information on many radionuclides. It happens that using the sequential method results in lowering radiochemical recovery for one or more elements. The knowledge about radioactive pollution of this region of northern Poland is limited, especially this work is the first Polish one, which gives data on 237Np activity concentration and deposition in soil profiles
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