| | fe -. “ a e / ih oJ C: . a Aypen A T | po ix L C — 3 . Acvagey- June 20 RADIATION PROTECTION GUIDANCE . ~ FOR CONTROL OF EXPOSURES AT ENIWETOK ATOLL INTRODUCTION Standards for protecting man against exposures to ionizing radiation evolved from the use of radium and x-rays. They have been extended during the development of nuclear technology which has given us man-made radioactive elements. National and inter- national groups of authorities have developed approaches for pretec- | ; Any touservetr ee ood tion and established numerical standards which, in their views provide a degree of radiological safety at least as stringent as is achieved for other agents, such as chemicals, explosives and toxic substances, Standards now exist for broad categories of exposure conditions. They are in daily use by governmental agencies and other bodies ‘having responsibilities for health protection. p Standards are prepared so as to jeasily understood and applied by the professionals. is favored. ae eee The use of judgement rather than rigid application There are benefits as well as risks associated with radiation usages, and situations will arise to which standards are not directly applicable. Such cases are handled on a case-by-case basis, with professional judgements made as to exposure levels that are justifiable under the circumstances,