Impulse character of radionuclide concentration changes in the near ground layer of air
Based on the results of many years of systematic measurements of radioactivity in the near ground layer of air we conclude that radioactivity changes occurred under the influence of monotonous and impulse factors. The model describing the impulse character of radioactivity is presented. The distribution function of radioactivity in respect to impulse amplitude as well as duration Psi(A,tau) is analysed using Fokker-Planck equation. It is shown that radioactivity in the ground layer of air did not explicitly depend upon the state of the atmosphere.