Altitude-dependent distribution of 137Cs in the environment:a case study of Aragats massif, Armenia

作     者：Konstantin Pyuskyulyan Stephen P.LaMont Vovik Atoyan Olga Belyaeva Nona Movsisyan Armen Saghatelyan Konstantin Pyuskyulyan;Stephen P.LaMont;Vovik Atoyan;Olga Belyaeva;Nona Movsisyan;Armen Saghatelyan

作者机构：Armenian Nuclear Power PlantMetsamorArmenia Nuclear and RadiochemistryLos Alamos National LaboratoryLos AlamosUSA Radioecology DepartmentCenter for Ecological-Noosphere StudiesNAS RA.YerevanArmenia 

出 版 物：《Acta Geochimica》 (地球化学学报（英文）)

年 卷 期：2020年第39卷第1期

页      面：127-138页

核心收录：

学科分类：12[管理学] 083002[工学-环境工程] 1204[管理学-公共管理] 0830[工学-环境科学与工程（可授工学、理学、农学学位）] 082803[工学-农业生物环境与能源工程] 07[理学] 08[工学] 0828[工学-农业工程] 09[农学] 0903[农学-农业资源与环境] 120405[管理学-土地资源管理] 0713[理学-生态学] 

基　　金：a Grant No. 15T-1E061 ‘‘Radioecological Monitoring in the Area of the Republic of Armenia’’ 2015–2017  under support of State Committee of Science to the Ministry of Education and Science RA 

主　　题：137Cs Distribution by altitude Naturally occurring radionuclides Topsoil Dry atmospheric depositions Gamma radiation Mountain regions 

摘      要：This paper considers the distribution of technogenic 137Cs and naturally occurring radionuclides:238 U,232 Th and40 R concentrations in soils and 137Cs in atmospheric dry depositions by altitudinal belts of the Aragats mountain massif,Republic of *** soil samples were collected at altitudes from 1000 to 3200 *** the determination of geochemical variability,two soil sampling campaigns were *** dry depositions were sampled from five stations at1100-3200 m collected onto organic fiber filters between June and December 2016.137Cs activity was measured using a high-purity Germanium detector coupled to a multichannel analyzer(Canberra).Results indicated that specific activity of 137Cs in soils at 1000 m is495-528 Bq m^-2,andat3200 mis10,500-11,470 Bq m^-*** correlation observed for 137Cs versus naturally occurring radionuclides,which varies in distribution by *** activities of 137Cs in dry atmospheric depositions varies from 1.06 at 846 m to2.37 Bq m^-2 per quarter at 3200 m and increases as the altitude *** of 137Cs in soil and dry atmospheric deposition correlated significantly,and 137Cs activity in soils and atmospheric dry depositions decrease as the absolute altitude *** 50-year effective dose from exposure to 137Cs fallout varies with altitude from 0.007 to 1.42 m Sv.