摘要
自1992年,浙江省辐射环境监测站对秦山核电基地外围环境辐射水平进行了连续的监督性监测。1992~2005年,秦山核电基地外围20 km范围内环境陆地土壤、附近海岸潮间带土、湖塘泥、海域海底泥等4种土壤介质中放射性水平的监测结果表明：天然放射性核素238U平均含量分别为38、32、39和25 Bq/kg（干重）;人工放射性核素137Cs平均含量分别为3.3、2.4、1.9和1.1 Bq/kg（干重）。与基地运行前本底值和对照点监测值相比,土壤介质样品中放射性核素含量均在正常范围内。
Since 1992, Environmental Radiation Monitoring Center of Zhejiang Province has been conducting a continued monitoring of environmental radiation around the QNPP Base. This paper introduced the specific activity of radiormuclides in the soil matrix of four different types, i.e. land soil, lake mud, littoral area soil and seabed mud within 20 km of Qinshan NPP Base in 1992 ~ 2005. The monitoring results show that the specific activity of 137 Cs in land soil, lake mud, littoral area soil and the seabed mud around Qinshan NPP base is 3.4, 2.1, 2.4 and 1.1 Bq/kg （dry）, respectively. The specific activity of ^238U in the four solid media samples is 38, 32, 39 and 25 Bq/kg （dry）, respectively.
出处
《辐射防护通讯》
2007年第3期32-35,共4页
Radiation Protection Bulletin
