Reconstruction of 137Cs signal in Cuba using 7Be as tracer of vertical transport processes in the atmosphere.
Levels of 137Cs and 7Be in aerosols have been measured in the region of Cienfuegos (Cuba) during the period 1994-1998. 137Cs showed the same seasonal trend as 7Be and the monthly regimes of precipitation seemed to be responsible for the observed pattern. The 137Cs/7Be ratio obtained in Cienfuegos and Miami (FL) in this period was used to calibrate the long-term database of 137Cs concentrations recorded in Miami (250 km from Cienfuegos). The database was then employed to reconstruct the 137Cs monthly concentrations in Cienfuegos since 1957.
Hernández
C M Alonso
CM
Centro de Estudios Ambientales de Cienfuegos, AP 5. Ciudad Nuclear, Cienfuegos, Cuba. carlos@ceac.perla.inf.cu
Aguila
H Cartas
HC
Asencio
M Díaz
MD
Caravaca
A Muñoz
AM
D000392:Air Movements; D000396:Air Pollutants, Radioactive / Q000032:analysis*; D001272:Atmosphere / Q000032:analysis*; D001608:Beryllium / Q000032:analysis*; D002587:Cesium Isotopes / Q000032:analysis*; D003462:Cuba; D004784:Environmental Monitoring / Q000379:methods; D005431:Florida; D011868:Radioisotopes / Q000032:analysis*; D011891:Rain; D012621:Seasons; D013997:Time Factors
D000396:Air Pollutants, Radioactive; D002587:Cesium Isotopes; D011868:Radioisotopes; D001608:Beryllium