Tritium determination in surface water and precipitation samples in the environment of the PC "Nuclear facilities of Serbia"

Tricijum je radionuklid čije se prisustvo u životnoj sredini u okolini nuklearnih postrojenja, posebno teškovodnih, pažljivo prati. Cilj ovog rada je određivanje specifične aktivnosti tricijuma u vodenim uzorcima pomoću niskofonskog tečnog scintilacionog detektora, Quantulus 1220. Analizirani su uzorci površinskih voda sa nekoliko lokacija u blizini JP “Nuklearni objekti Srbije“ iz potoka Mlake i reke Dunava, i uzorci mesečnih padavina prikupljenih na lokaciji JP „Nuklearni objekti Srbije“ u toku 2016. godine. Dobijeni rezultati ispitivanja površinskih voda i padavina pokazuju dobro slaganje sa prosečnim godišnjim vrednostima koje su ispod dozvoljenih granica.Tritium is a radionuclide whose presence in the environment around nuclear facilities has to be carefully monitored. The main aim of this paper was to determine tritium concentrations in water samples using low background liquid scintillation detector, Quantulus 1220. Surface water samples taken from Mlaka stream and Danube River on different locations near PC "Nuclear Facilities of Serbia", and monthly precipitation samples collected during 2016 on PC "Nuclear facilities of Serbia" site, were analyzed. The results obtained for surface water and precipitation samples showed good compliance with average annual values that are below the upper limit for tritium in water