Author(s)

L. Sesana, L. Barbieri, U. Facchini and G. Lanzani

Abstract

Radon 222 as a Tracer of Atmospheric Motions: Research in Lombardy A contribution to subproject LOOP L Sesana*, L Barbieri*, U. Facchini* and G. LanzanP ^Istituto diFisica Generate Applicata, Via G. Celoria 16, 20133 Milano, Italy ^Amministrazione Provinciale di Como, ViaBorgovico 148, 22100 Como, Italy Introduction Measurements of atmospheric concentrations of radon 222 supply an index of atmospheric stability, of the formation of thermal inversions, of convective turbulence, and of the movement of air masses, and hence are extremely relevant to the understanding of the diffusion of atmospheric pollutants. In 1996 our Institute set up three stations for radon 222 concentration measurements in the town of Milan and in the prealps area (Facchini and Sesana, 1996; Facchini and Sesana, 1997; Sesana et al., in press). A map showing the sites of the radon stations is given in Fig. 1. O

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