雾霾天气下气溶胶总α、总β放射性水平分析  

Analysis of the total α and total βactivity in airborne aerosols in haze weather

作　　者：庄家毅[1] 姚志扬[1] 陶易[1] 倪海平[1] ZHUANG Jiayi;YAO Zhiyang;TAO Yi;NI Haiping(Lianyungang Center for Disease Control and Prevention,Lianyungang 222003 China)

机构地区：[1]连云港市疾病预防控制中心,江苏连云港222003

出　　处：《中国辐射卫生》2018年第5期490-491,495,共3页Chinese Journal of Radiological Health

基　　金：江苏省卫生和计划生育委员会科研项目(Y2015031)

摘　　要：目的掌握和分析连云港市雾霾天气和常规天气下大气气溶胶中的放射性水平。方法分别在雾霾天气和常规天气采集大气气溶胶样品进行总α、总β放射性水平监测,全年共采集44份气溶胶样品。结果年平均的气溶胶总α、总β放射性比活度在雾霾天气和常规天气下无明显差异(P> 0. 05);春季、冬季和秋季的气溶胶总α放射性比活度有显著差异(P <0. 05)。结论雾霾天气下气溶胶总α、总β放射性比活度与常规天气下无显著变化,但春季和冬季的气溶胶总α放射性比活度均高于秋季。Objective To understand and analyze aerosol radiation levels under hazy weather and normal weather in Lianyungang City. Methods The total α and β activity levels of airborne aerosol samples were monitored in haze days and non-haze days. A total of 44 samples were collected in the whole year. Results There was no statistically significant difference of the annual averages of total α or β activity between the haze days and non-haze days( P > 0. 05). In the spring and winter,the total α activity in the aerosol was higher than that of the autumn,and the difference was statistically significant( P <0. 05). Conclusion On averages,there was no significant change of the total α or β activity in aerosols throughout a year,but the total α activity in the spring and winter seems higher than that in autumn. The radioactivity level in airborne aerosols in Lianyungang area was not abnormal.

关 键 词：雾霾天气 总α 总β 气溶胶 

分 类 号：X591[环境科学与工程—环境工程]