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ICRP International

Conference on Recovery After Nuclear Accidents

Radiological Protection Lessons
from Fukushima and Beyond

December 1 - 18, 2020

A.N.C. Silva, R.S. Amaral, J.A. Santos Júnior, J.W. Vieira

Updated: Dec 11, 2020

The Fukushima Soil Project - A Propose

A.N.C. Silva, R.S. Amaral, J.A. Santos Júnior, J.W. Vieira (Federal University of Pernambuco, Brazil)


The natural environmental ionizing radiation affects the surface of the earth since the formation of the planet. In 2011, the Dai-ich Nuclear Power Plant accident in Fukushima added a charge of artificial radioisotopes to the soil. From soil, the main sources of natural radioactivity are 40K and the series of 238U and 232Th. After the accident, 137Cs and 90Sr emerged as artificial radioisotopes of great impact for biota. To qualify and quantify these radionuclides, analysis of soil, the elemen