Potential Hazard of Accidental Radioactive Discharges into the Calm Atmosphere

A research team from the department of Adaptive Systems of UTIA [L1] has solved the project HARP [L2] which included examination of various release scenarios under worst-case meteorological conditions. Recently, the team has been focused on inspection of the calm situations characterised by stable atmosphere at very low wind speed with possibility of rainfall. Although the probability of such episodes is low, possible radiological impact on the environment can be serious. Developed methodology supports deployment of the sampling-based methods for probabilistic estimation of the radiological impact of radiation accidents.