The uranium processing plant MAPE Mydlovary in South Bohemia, Czech Republic,
was in operation for about 30 years, from 1962 until 1991. Extensive
remediation and reclamation work has been done in the area. In the study
presented here we measured mass and volume activities of certain
radionuclides in soil and water samples from the surroundings and measured
gamma equivalent dose rates at the same locations. The average activity
concentrations of 40K, 226Ra, and 238U in soil were 307.3 ? 4.4 Bq/kg, 133.4
? 0.8 Bq/kg, and 113.2 ?3.8 Bq/kg, respectively, whereas in water they were
5.7 ? 0.3 Bq/L, 0.30 ? 0.03 Bq/L, and 1.8 ? 0.16 Bq/L, respectively. The
gamma equivalent dose rate at 5 cm and 1 m height above ground was 0.15 ? ?
0.04 ?Sv/h and 0.15 ? 0.03 ?Sv/h, respectively. As shown by comparison with
the findings for similar sites elsewhere in the world, as well as with the
results of measurements at uncontaminated locations, these values are
compatible with regulation limits and there is no reason for concern
regarding the radiation protection for workers involved with further
remediation and reclamation, or carrying out other activities in the area.
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