南通市2019—2022年食品及环境介质总α和总β放射水平调查  

Investigation on grossαandβradioactivity in food and environmental media in Nantong City from 2019 to 2022

作　　者：侯沙沙 顾俊[1] 何智敏[1] 顾心逸 黎源 许滋宁[1] HOU Sha-sha;GU JUN;HE Zhi-min;GU Xin-yi;LI Yuan;XU Zi-ning(Nantong Municipal Center for Disease Control and Prevention,Nantong Jiangsu 226007,China)

机构地区：[1]南通市疾病预防控制中心,江苏南通226007

出　　处：《江苏预防医学》2024年第2期227-229,共3页Jiangsu Journal of Preventive Medicine

基　　金：南通市卫健委科研课题(QNZ2023082)。

摘　　要：目的了解南通市近年来食品及环境介质总α、总β放射水平。方法2019—2022年,采集南通市生活饮用水、沉降灰和气溶胶3种环境样品以及9种食品样品,采用相关国标方法检测总α和总β放射性水平。结果2019—2022年,食品样品中总α放射性水平在0.42~5.94 Bq/kg,总β放射性水平在44.23~124.50 Bq/kg。总α放射性水平生活饮用水在0.02~0.03 Bq/L,气溶胶在0.21~0.30 mBq/m3,沉降灰在16.93~31.00 Bq/m2;总β放射性水平生活饮用水在0.08~0.11 Bq/L,气溶胶在1.18~1.30 mBq/m3,沉降灰在40.95~63.85 Bq/m2。结论近年来南通市食品及环境介质中总α、总β放射水平基本平稳,处于环境本底状态。Objective To investigate the grossαandβradioactivity in food and environmental media in Nantong City during re-cent years.Methods Three environmental samples(daily drinking water,fallout and aerosols)and nine food samples were collected in Nanjing City from 2019 to 2022,and the grossαandβradioactivity was tested using international methods.Results The grossαandβradioactivity was 0.42 to 5.94 Bq/kg and 44.23 to 124.50 Bq/kg in food samples from 2019 to 2022.The grossαradioactivity was 0.02 to 0.03 Bq/L in daily drinking water,0.21 to 0.30 mBq/m3 in aerosols,and 16.93 to 31.00 Bq/m2 in fallouts,and the grossβradioactivity was 0.08 to 0.11 Bq/L in daily drinking water,1.18 to 1.30 mBq/m3 in aerosols,and 40.95 to 63.85 Bq/m2 in fall-outs.Conclusions The grossαandβradioactivity was almost stable in food and environmental media in Nantong City during recent years,which remained at environmental background status.

关 键 词：食品 环境介质 总α 总β 放射水平 

分 类 号：R144[医药卫生—公共卫生与预防医学]