Analysis of causes for heterogeneities and time variations of radon field in the landscapes of central black earth region

Abstract

The emanation of radon by the rocks under some conditions is the sufficiently dangerous phenomenon, which it is necessary to consider with the territorial planning and the building. From other side have long ago been they attempted to use this phenomenon in the deep geological mapping for the development of structural heterogeneities in the earth's crust. However, and other direction encounters definite difficulties with the interpretation of results in view of wide variations in the values of the activity of radon and many factors, whose joint action causes the nonlinear nature of dependences. Hence and the different estimations of effectiveness in the application of a radon method. In the article the results of the regime monitoring of the volumetric activity of radon from the near-surface soils in a number of the objects of the Voronyezh province are given. Basic conclusion: each point of radon field in the ground massif is individual, since its special features are caused first of all by geological factors. Geomorphological, meteorological, biological, technogenic and, possibly, space factors have all signs of the superimposed disturbing actions, which confirms the oscillating and matched on the phase nature of variations at the adjacent contiguous points.