Plutonium in locations of local sources and its involvement in global circulation

Throughout the considered period, the volumetric activity of plutonium isotopes in all of the locations of interest was not exceeding the permissible volumetric activity in the inhaled air for the population, as specified in Radiation Safety Regulations NRB-99/2009, which is equal to 2.5 × 10-3 Bq/m3.