[en] The radiological impact of Hanford operations during 1980 was calculated based upon the quantity of radionuclides measured in effluents from operating facilities. The first-year dose to the hypothetical maximum-exposed individual was calculated to be 0.72 mrem to the thyroid, 0.5% of the applicable DOE Radiation Protection Standard. The 50-yr whole-body dose commitment to the population within an 80-km (50-mile) radius of the Hanford Site was calculated to be 0.60 man-rem. A comparison of the estimated potential impact from 1980 Hanford operations with the impact from other sources of radiation exposure routinely encountered demonstrates the comparatively small impact of current operations