top of page

ICRP International

Conference on Recovery After Nuclear Accidents

Radiological Protection Lessons
from Fukushima and Beyond

December 1 - 18, 2020

C.L. Rääf, R. Finck, J. Martinsson, M. Isaksson

Updated: Dec 11, 2020

Radiological Benefit of Decontamination of Urban Settlements After a Radioactive Fallout: A Model Study

C.L. Rääf, R. Finck, J. Martinsson, M. Isaksson (Lund University, Sweden; Gothenburg University, Sweden)

Given that experience from Japan after the Fukushima fallout shows that decontamination measures of residential areas may take up to several years to achieve, we have estimated the added averted detriment for newborn children by decontamination measures for areas that have been evacuated as a function of return time. Estimations predict that the cumulative life-time attributable risk averted by decontamination decreases with a half-time of 2-3 y for a Fukushima type release. If the return time of the residents is more than 5 y after the fallout, decontamination contributes with 10-35% of the averted cumulative risk compared with performing only evacuation, assuming optimistic values for decontamination efficiency (90% dose reduction). The estimates are highly dependent on the effective ecological half-time of cesium (ranging from 3 to 20 y). If considered for the radiological benefits alone, our conclusion is that future decontamination programs be kept within a timeframe of 5 y.



C.L. Rääf, R. Finck, J. Martinsson, M. Isaksson (Lund University, Sweden; Gothenburg University, Sweden)




Related Posts

See All

L. Rozdyalouskaya

Regulatory Approach to Management of Radioactive Waste Generated During Remediation Activities in the Chernobyl Contaminated Areas L. Rozdyalouskaya (Ministry of Health, Belarus) It is known, that rem

Y. Takeuchi

Machinery System for Radioactivity Measurement of Container Bag Including Removed Soil and Its Deals in Off-site Decontamination Y. Takeuchi (Hitachi Construction Machinery Japan Co., Ltd.) Towards th


Organised by


Hosted by

© 2020 ICRP, International Commission on Radiological Protection

  • White Twitter Icon
  • White YouTube Icon
  • White Facebook Icon
  • White Instagram Icon
bottom of page