Radiological risk assessment for the population of Vietnam from an exposure to natural and technogenic radionuclides

Abstract

For the generalized population of Vietnam and the cities of Dalat and Hanoi, a risk assessment is carried out for exposure to radioactive substances present in the environment. The impact of radionuclides of both natural and man-made origin, as well as various routes of their impact, are considered. The assessed results show the values of the radiological risk for the population of Vietnam, Dalat and Hanoi amount to 1.58·10−6, 1.96·10−6 and 7.19·10−5, respectively. The greatest contribution to radiological risk is made by the consumption of foods that contain natural radionuclides. The radiological risk in Vietnam from technogenic radionuclides doesn’t exceed acceptable value (5·10−5) and is much lower (14-1125 times) than that from natural radionuclides.