Retrospective estimation of the concentration of 241Pu in air sampled at a Belgrade site following the Chernobyl accident.
The surface air activity concentration of 241Pu for the period May 01-15, 1986, for a monitoring site in Vinca, Belgrade was retrospectively estimated. The results were obtained by re-measurement of plutonium fraction alpha-spectrometric sources, with 236Pu as a tracer, used almost 13 years earlier for the determination of (239,240)Pu concentration in surface air immediately after the Chernobyl accident. The estimated 241Pu concentration, based on the 241Am in-growth method for air samples, ranged from 240 to 7800 microBq/m3. The average activity ratio 241Pu/(239,240)Pu originating from the Chernobyl accident at Belgrade site was approximately 100 at the collection time.
Vukanac
I
I
Institute for Nuclear Sciences Vinca, P.O. B 522, Belgrade, Serbia and Montenegro. vukanac@vin.bg.ac.yu
Paligorić
D
D
Novković
D
D
Djurasević
M
M
Obradović
Z
Z
Milosević
Z
Z
Manić
S
S
D000396:Air Pollutants, Radioactive / Q000032:analysis*; D047852:Chernobyl Nuclear Accident; D004784:Environmental Monitoring; D007554:Isotopes; D011005:Plutonium / Q000032:analysis*; D011210:Power Plants; D011834:Radiation Monitoring; D018788:Radioactive Hazard Release; D012189:Retrospective Studies; D014455:Ukraine; D015022:Yugoslavia
D000396:Air Pollutants, Radioactive; D007554:Isotopes; D011005:Plutonium