Among the factors that affect the oncological morbidity of the population in the Northern European regions, there are changes in the fluxes of incoming ultraviolet radiation. One of the reasons for these changes is changing distribution of the total ozone content above them. It is hypothesized that changes in the total ozone content and ultraviolet radiation fluxes may be caused by variations in the cosmic ray flux. The purpose of this work is to verify the hypothesis, as well as to identify areas of Northern Europe for which the influence of these factors is significant. It was established that the hypothesis is valid for many parts of Northern Europe. The sites, for which the change in their total areas and the corresponding signs of correlation between the studied processes allows them to be associated with the movement of the North Geomagnetic Pole occurring in the same years, were identified.