Radiological dose assessment by using RESRAD code : a case study, fukushima accident for soil and public

Abstract EN

Estimation of radionuclides fallout as a result of routine atmosphere emission from Fukushima accident as estimate of the radionuclides doses of exposure human is one of parameter for a safety analysis to assess the doses received by an individual or population group by using theoretical model.

A tremendous amount of radionuclides discharged because of the damage to cooling systems of nuclear reactors in the Fukushima No.

1 in March 2011.

Fukushima and its adjacent prefectures were contaminated with fission products from the accident.

The present study is estimates radiological doses and health risk to general public from deposition of radionuclides such as (110mAg, 129mTe, 134Cs, and 137Cs) on soil surface in south, north and central Miyagi Prefecture due to Fukushima accident by using RESRSD (version 6.5) computer code.

In this assessment the exposure source parameters were adjusted over period of 100 years over an area of 7285 Km2 and depth of 0.01 m.

The predicted maximum total effective dose equivalent received by general public from deposited radionuclides on soil surface in south, north and central Miyagi Prefecture were found to be (3.36, 0.79 and 0.21 mSv/yr).

Also the annual total cancer risk for public were estimated to be(2.25 x10-4, 1.0 x10-4, 4.0 x10-5) respectively.