核化学与放射化学Issue(6)：393-402,10.DOI:10.7538/hhx.2015.37.06.0393
钢铁冶炼的放射性排放及其辐射安全监管
Radiological Emissions and Radiation Safety Supervision of Iron and Steel Production
摘要
Abstract
Iron and steel industry in China developed fast with a crude steel production of 49.5% in the world in 2014.The raw materials used in iron and steel production are iron ore,coal and limestone,which all contain low levels of naturally occurring radioactive materials (NORM)in the U and Th decay chains and 40 K.Due to high temperature in the process of sintering,coking,iron and steel making,2 1 0 Pb and 2 1 0 Po in 238 U series volatile after reaching their melting points and boiling points,and then condense on the atmospheric particles and release with other air pollutants so as to increase the public exposure.This paper demonstrated the recent research progress of NORM emissions from iron and steel making in Germany,Italy,the United Kingdom,the Netherlands,Australia and Egypt,as well as the reports from European Commission and IAEA.Sintering and iron making are the main processes that release naturally occurring radioactive materials.Some countries and organizations have developed management policies on NORM radiation.Measurements and radiological impact assessment of 222 Rn,2 1 0 Pb and 2 1 0 Po in stack effluents should be inten-sively studied.关键词
钢铁冶炼/天然放射性物质/辐射影响/辐射安全/监管Key words
iron and steel production/naturally occurring radioactive materials/radiological impact/radiation safety/supervision分类
资源环境引用本文复制引用
李金凤,姜子英,李晓芸,陈凌..钢铁冶炼的放射性排放及其辐射安全监管[J].核化学与放射化学,2015,(6):393-402,10.基金项目
湖南、湖北和江西三省长江沿岸非核工业辐射水平调查(JC201303) （JC201303）
