CAJ | 학술논문

目的：探讨某地区环境样品中90 Sr的放射性水平，评价该地区成人因90 Sr所致个人年有效剂量。方法根据国家标准采集水体、土壤、生物样品，经前处理后利用放化方法对其进行90 Sr测量分析，进而评价驻地居民所受年有效剂量。结果该地区水样、土壤样、生物样中90 Sr比活度均较低，所致该地区成人的年有效剂量为1μSv，仅为国家标准规定的年剂量限值的1‰。结论该地区90 Sr引起的对公众的照射微乎其微。
목적：탐토모지구배경양품중90 Sr적방사성수평，평개해지구성인인90 Sr소치개인년유효제량。방법근거국가표준채집수체、토양、생물양품，경전처리후이용방화방법대기진행90 Sr측량분석，진이평개주지거민소수년유효제량。결과해지구수양、토양양、생물양중90 Sr비활도균교저，소치해지구성인적년유효제량위1μSv，부위국가표준규정적년제량한치적1‰。결론해지구90 Sr인기적대공음적조사미호기미。
Objective To investigate the 90 Sr radioactivity in a certain environmental sample , and also to evaluate annual in-dividual effective dose in local residents .Methods Water, surface soil and biologic samples were collected in accordance with related national standards, then, after pretreatment, radiochemistry was used to detect and analyze 90Sr radioactivity in the samples, and annual effective dose in local residents was evaluated based on the detected data .Results The 90 Sr specific activity in water , surface soil and biologic samples in the region was relatively low , annual effective dose rate of 90 Sr in local residents was 1 μSv yearly, just 1‰of the annual limit specified by national standards .Conclusion The annual effective dose rate of 90 Sr in the local people could be termed as negligible .