Contribution to analysis of time courses of soil radon concentration (years 1997–1998)

Abstract

The article is devoted to the evaluation of the dependence between measured values of ²²²Rn and ²²⁰Rn activity concentration in soil air and some meteorological parameters (temperature, humidity and pressure of atmospheric air) in an annual cycle from 5.3.1997 to 14.12.1998. In addition to year-around assessment of observed dependencies by means of linear regression (Table 1) a more detailed statistical analysis of the variability of daily (weekly) measurements is also presented. Based on these results several shorter time periods (seasons) are detached within a year, which differ from each other by weather character, and during which single meteorological parameters get determining influence on measured concentrations of ²²²Rn and ²²⁰Rn (Table 2). The results document a tight dependence between radon content in pore space of soil cover and meteorological parameters of atmospheric environment in dependence on weather changes in a year cycle.