摘要
2008年底完成了对重庆市伴生放射性水平的调查,调查结果显示调查对象(废渣、原料、产品)表面1m处γ辐射空气吸收剂量率范围90-1083nGy/h。按照《国民经济行业分类》办法,重点对煤炭开采和洗选业、无机盐制造业、火力发电业、铝冶炼业和化学采矿业等行业进行调查,结果表明,烟煤和无烟煤的开采洗选业的调查对象表面1m处γ辐射空气吸收剂量率范围最大,有118-1083nGy/h,应采取防护措施、加强辐射管理。
By the end of 2008, the investigation of associated with radioactive sources radiation level in Chongqing was completed. The results showed that,the range values of 7 radiation air absorbed dose rate at 1 meter from the survey object（waste residue,raw materials, products）surface was 90 1083 nGy/h. In accordance with the＂Industrial Classification of the national economy＂, carried on the major investigation of Bituminous coal and anthracite coal mining and washing industry, Inorganic salt manufacturing, Power industry, Aluminum smelting industry, Chemical mining industry and so on. It was found that,the range values of 7 radiation air absorbed dose rate at 1 meter from the survey object of Bituminous coal and anthracite coal mining and washing industry was the largest, about 118- 1083 nGy/h. Protective measures should be taken and radiation management should be strengthen.
出处
《三峡环境与生态》
2009年第6期6-8,共3页
Environment and Ecology in the Three Gorges
关键词
重庆市
伴生放射性
水平调查
Chongqing
associated radioactivity
level investigation
