Objective: to assess the effects of radioactive emissions from the EU Joint Research Centre (JRC) (nuclear) at Ispra, the Local Health Authority (ASL) of Varese carried out an ecological study to measure any excess incidence of cancer in the surrounding population.
Design And Setting: after estimation of historical exposure levels in the surrounding population, the incidence rates of leukaemia and other exposure-related tumours were calculated from data in the population based Lombardy Cancer Registry (Varese Province). By indirect standardization, the expected cases (based on incidence rate in the Province) were compared with observed cases in the close-by municipality of Ispra, in municipalities within a 5 km radius of the JRC (5kmArea) and in the area covered by the District of Sesto Calende (DistrictArea).