Search - Number 10 - RADIONUCLIDE AEROSOL MONITORING INTO LOCAL ZONE OF THE “UKRYTTYA” OBJECT OF THE CHERNOBYL NPP

RADIONUCLIDE AEROSOL MONITORING INTO LOCAL ZONE OF THE “UKRYTTYA” OBJECT OF THE CHERNOBYL NPP
Cover not present RADIONUCLIDE AEROSOL MONITORING INTO LOCAL ZONE OF THE “UKRYTTYA” OBJECT OF THE CHERNOBYL NPP
Category: Number 10
Publication: 10
Summary

Concentrations of radioactive aerosols-products of block-4 accident of the ChNPP near the "Ukryttya" object are presented. During 1986 - 2008 air pollution sistematicaly was decreased. Aerosols sampled all day and night by means of three aspiration installations are placed at distance 300 - 400 m from centre of the "Ukryttya" object. It is shown, that aerosol concentration depends from character of work and dustlifting around aspiration installations. During 2000 - 2008 aerosol concentration of 137Cs in the local zone was constant about 3 mBq/m3. During 1993 - 2007 the relations of 137Cs/241Am aerosol concentrations were in range 50 - 70. That corresponds to calculated quantity of nuclear fuel burnup 11 MWt·day/kg U.