To date, no thorough study has been conducted of the biological effects of small radiation doses, the combined effect of radiation and other factors and the impact of the current situation on the environment and biota.
迄今，对小剂量辐射造成的生物影响、辐射与其他因素造成的综合影响以及目前情况对环境和生物群系的影响都还没有进行透彻的研究。