109 年度
海陸域環境輻射調查與國民輻射劑量評估
(2/4)Environmental radioactivity survey of marine and coastal area and population dose assessment of
Taiwan(2/4)
主管單位：行政院原子能委員會
執行單位：行政院原子能委員會輻射偵測中心
李明達 劉任哲 高薇喻 蔡文賢
Ming-Da Lee Ren-Jer Liu Wei-Yu Kao Wen-Hsien Tsai
洪明崎 徐明德
Ming-Chi Horng Ming-Te Hsu
109 年度
摘要
日本福島事件後，民眾對於環境的輻射劑量與輻射對海域的影響更為關注。本計畫 推動台灣海域輻射監測調查與國民輻射劑量評估，透過跨部會合作與參考國際文獻，
先以海水、海生物及累積試樣(岸沙及海底沉積物等)為海洋主要分析樣品，並選擇銫- 137 為調查分析之關鍵核種；另就國民輻射劑量主要來源，規劃重新調查。本計畫為 108 年-111 年為期 4 年的中長期計畫， 109 年延續 108 年規劃內容執行，持續建立 台灣海域輻射背景資料庫並健全台灣海陸域環境輻射數據，進而能掌握日本福島核災 事故及大陸沿岸核能電廠等放射性廢水排放，對台灣海域影響及變化趨勢。 109 年的國 民輻射劑量評估作業，已完成醫療輻射中電腦斷層與乳房攝影之劑量評估、吸菸行為造 成國人輻射劑量評估等，並持續進行職業曝露、；體外輻射劑量與食品體內劑量重新評 估作業。
關鍵詞：海陸域背景、監測、輻射劑量、醫療輻射
Abstract
.
After Fukushima incident, more and more people care about the radiation around our living area and impact of ocean ecosystem. For the health of Taiwanese people, this project promotes Taiwan sea area radiation monitoring and population dose assessment and seeks cross-departmental cooperation.
After evaluation, seawater, marine organisms and cumulative samples (shore sand and seabed sediments) were used as the main analytical samples, and cesium-137 was selected as the key nuclear species for investigation and analysis. Project, stated from 2019, establish and refresh a radiation background database to improve the environmental radiation background of Taiwan's sea and land areas, and then grasp the trend of the impact of radioactive wastewater discharge from the Fukushima nuclear disaster and the nuclear power plant in China on Taiwan sea area to ensure radiation safety.
Population dose assessment confirmed medical dose due to computer tomography and mammography examination, cigarette smoking and ingestion of Cs-137. Other radiation sources like external and internal radiation dose from terrestrial gamma, cosmic ray and foodstuffs are continue reassessed.
Keywords ： Sea area radiation background, monitoring, radiation dose, medical radiation.
