Author(s)

U. Facchini & L. Sesana

Abstract

Atmospheric Radon 222 detector was installed at ground level in Milan and two others at height of 800-1000 in the Lombard Prealps. From the behaviour of the concentrations of this radioactive tracer it was possible to get data on the turbulence of the low troposphere and the structure of the Mixed Layer. The changes in daily and weekly atmospheric Radon levels are interesting to study since they are generally related to the stability or turbulence of the atmosphere. The analysis of sunny day data from the Milan station indicated growth and dissolution of the inversion layer. Radon levels in the upland overlooking the plain are constant, whereas inversion and local turbulence phenomena characterize the Prealp Basin. Radon data can be used as the basis for the development of polluta

Keywords