Role and Activities of NCRP in Risk Assessement

The National Coimdl on Radiation Protection and Measurements (NCRP) has been concerned from its inception with assessment of the risks of low-level irradiation. In recent years, this concern has prompted increasingly detailed efforts to quantify the influence of dose, dose rate, and linear energy transfer (LET) on the biomedical effects of radiation, with particular reference to the carcinogenic risks of low-level exposure (NCRP, 1980) and the work-in-progress of NCRP Sdentific Committee 40 on LET and relative biological effectiveness. 

In addition to ionizing radiation, other forms of radiation and other physical and chemical agents have also been evaluated by NCRP with respect to their potential health impacts, comparative risks, and protection criteria. Furthermore, because radiation in combination with other physical and chemical agents may exert additive, synergistic, or even antagonistic effects, NCRP has concerned itself increasingly with 

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