Influence of atmospheric precipitation and lunisolar gravitational forces on radon concentrations in the air in the dispersive soil pores

In the present study, the obtained data on the previously unknown behaviors of radon migration in the near-surface atmospheric and soil layers were validated experimentally. The experiment finds two earth origins of radon concentrations occurred in the air in the pores of the near-surface dispersive soil, intragenic and hypogenic, with a considerable atmospheric impact of the liquid forms of precipitation transporting radon from the atmosphere to the ground. The equations were used to establish the mathematical relation between the amounts of precipitation and atmospheric radon. We also assessed a relative contribution of the atmospheric and earth sources to the total radon concentration in the air in the soil pores. The atmospheric source was found to have a sporadically higher impact on the radon levels in the air in the soil pores as against the earth source, depending on the amounts of precipitation and radon concentrations in them. A close correlation was established between the radon concentrations in the soil and the effect of lunisolar gravitational forces on the earth’s crust. The findings of the radon levels in near-surface soils are expected to be applied as one of the criteria for environmental assessment of radon concentrations and associated threats.

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