[en] Knowledge of the way pollutants are deposited on plants and soils and are taken up by the biological systems is important for establishing a radiological analysis of the siutation in the environment of nuclear facilities. One can derive qualitative information about the deposition of the emissions and the distribution of the radiation doses from the type of the emissions and from the analysis of the weather situations and the vegetation conditions in the environment of nuclear facilities. These interrelationships are examined referring to measured data and values taken from literature. (orig./DG)