Correlation of radiation parameters and rainfall during environmental radiation monitoring around nuclear facilities

Deo monitoringa radioaktivnosti u životnoj sredini u okolini nuklearnih objekata u Javnom preduzeću “Nuklearni objekti Srbije” obuhvata ispitivanje nivoa radioaktivne kontaminacije vazduha, kao i relevantna meteorološka merenja na mikrolokaciji. U radu je prikazana korelacija promene jačine ambijentalnog ekvivalenta doze gama zračenja u vazduhu i količine padavina usled spiranja atmosfere. Merenja su vršena na lokaciji meteorološkog stuba na 114 metara nadmorske visine. Za prikaz odnosa između izmerenih radijacionih parametara i dnevnih količina padavina korišćena je varijacija ovih vrednosti tokom 2015. godine. Analizom ovog odnosa jasno se vidi uticaj intenzivne kiše na jačinu ambijentalnog ekvivalenta doze, što opravdava izmerene povećane vrednosti do kojih, u ovom slučaju, nije došlo usled eventualnog akcidentalnog ispuštanja radioaktivnih efluenata usled rada nuklearnih objekata.Part of the environmental radiation monitoring around nuclear facilities in the Public Company "Nuclear Facilities of Serbia" includes the examination of radioactive contamination levels of air, as well as relevant meteorological measurements on the micro-location. This paper presents a correlation between change of ambient gamma dose rate in the air and precipitation due to atmosphere leaching. Measurements were taken at the site of a meteorological tower on 114 meters above sea level. To show the relationship between measured radiation parameters and daily precipitation, the variations of these values during 2015 were used. The analysis of this relation clearly shows the impact of the intense rain on the ambient gamma dose rate, which justifies increased measured values, which in this case were not caused due to potential accidental releases of radioactive effluents during nuclear facilities operation