Vol. 12, issue 07, article # 15

pdf Borodulin A. I., Desyatkov B. M., Lapteva N. A. Determination of the time when the concentration of an atmospheric pollutant exceeds a preset level. // Atmospheric and oceanic optics. 1999. V. 12. No. 07. P. 630-633.
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Based on the probability density function obtained earlier for concentration of a pollutant spread in the atmosphere, we consider the problem of determining mathematical expectations of the frequency of occurrence of concentration to be above a given threshold level and the duration of such emissions. Calculations by the deduced formulas well agree with the experimental data from Refs. 1 and 2. It is shown that the "transient" and "equilibrium" regimes of concentration pulsation obtained by the formulas correspond to different values of pollutant concentration intermittence.