辽宁省公众所受电离辐射照射的基本估计

Ionizing radiation exposure of population in Liaoning Province

作者报告了辽宁省公众所受电离辐射照射剂量的综合结果，对其结果进行分析认为：各种主要电离辐射对公众所致的人均年有效剂量当量分别为：宇宙辐射电离成分２５１μＳｖ；地表γ辐射５３７μＳｖ；食品和水中放射性核素３１０μＳｖ；空气中氡及其子体１１６０μＳｖ；医用Ｘ射线９１．１μＳｖ；核医学１６μＳｖ；职业照射０．３９μＳｖ；放射性落下灰４６μＳｖ；燃煤放射性排出物及灰份１００μＳｖ，总计２５１１μＳｖ．各类辐射所占份额是天然辐射８９．９％（２２５８μＳｖ），医疗照射４．３％（１０７．１μＳｖ），职业照射０．０１６％（０．３９μＳｖ），放射性落下灰１．８％（４６μＳｖ），燃煤４．０％（１００μＳｖ）．

This paper reports the resultsof estimation of annual individualaverage effective dose equivalents tothe popalation in Liagning Provincefrom ionizing radiatioa exposure.The results of survey showedthat the annual average effectivedose equivalents were estimated tobe 251 μSv from cosmic ionizationgradiation, 537 μSv from terrestrial radiation. 3 10 μSv from radionuclides in food and drinking water, 1160uSv from radon and radon daughters,91. 1 μSv from medical diagnostic X-rays. 1 6 μSv from nuclear medicine, 0. 39 μSv from occupational radiation, 46 μSv fron radioactive fallout. and 100μSv from coal-fire radioactive effluent and content,and the sum total was 2511 μSv.