Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1739200 | Journal of Environmental Radioactivity | 2008 | 4 Pages |
Abstract
The production and discharge of liquid radioactive wastes as excreta from patients undergoing Nuclear Medicine Diagnostic (NMD) in a hospital were studied. Instantaneous and accumulated activity, discharged from the hospital to the sewage system, has been estimated keeping in mind radionuclide decay. This study would enable estimation of the environmental impact due to NMD procedures. Annual accumulated activities of 2.2Â GBq (131I), 1.847Â GBq (99mTc), 0.743Â GBq (123I), 0.337Â GBq (67Ga), 0.169Â GBq (111In) and 0.033Â GBq (201Tl) result from our model when applied to a European hospital. A comparison is made with calculations by other authors that do not consider the radionuclide decay and who overestimate by two orders of magnitude. Doses to critical people as sewage treatment workers are also significantly reduced. So, our results stress the importance of including the decay in the calculations.
Keywords
Related Topics
Physical Sciences and Engineering
Energy
Nuclear Energy and Engineering
Authors
R. Barquero, M.M. Agulla, A. Ruiz,