Effect of the Duration Time of a Nuclear Accident on Radiological Health Consequences

International Journal of Environmental Research and Public Health

Hyojoon Jeong¹  Misun Park²  Haesun Jeong²  Wontae Hwang²  Eunhan Kim² 

[1] Nuclear Environment and Safety Division, Korea Atomic Energy Research Institute, 989-111, Daedeok-daero, Yuseong, Daejeon 305-353, Korea;

关键词: nuclear accident;    radiological health consequences;    Gaussian plume model;    public health;    emission characteristics;   

DOI  :  10.3390/ijerph110302865

来源: mdpi

【 摘 要 】

This study aimed to quantify the effect of duration time of a nuclear accident on the radiation dose of a densely populated area and the resulting acute health effects. In the case of nuclear accidents, the total emissions of radioactive materials can be classified into several categories. Therefore, the release information is very important for the assessment of risk to the public. We confirmed that when the duration time of the emissions are prolonged to 7 hours, the concentrations of radioactive substances in the ambient air are reduced by 50% compared to that when the duration time of emission is one hour. This means that the risk evaluation using only the first wind direction of an accident is very conservative, so it has to be used as a screening level for the risk assessment. Furthermore, it is judged that the proper control of the emission time of a nuclear accident can minimize the health effects on residents.

【 授权许可】

CC BY   
© 2014 by the authors; licensee MDPI, Basel, Switzerland.