Gross-α and gross-β activities in airborne particulate samples. Analysis and prediction models

Measurements of gross-α and gross-β activities were made every week during the years 1992–1997 for airborne particulate samples collected using air filters at a clear site. The data are sufficiently numerous to allow the examination of variations in time and by these measurements to establish several features that should be important in understanding any trends of atmospheric radioactivity. Two models were used to predict the gross-α and gross-β activities. A good agreement between the results of these models and the measurements was highlighted.