Reconstruction of 137Cs signal in Cuba using 7Be as tracer of vertical transport processes in the atmosphere

Hernández, Carlos; Águila, Héctor Cartas; Asencio, Misael Díaz; Caravaca, Alain Muñoz

doi:10.1016/j.jenvrad.2003.11.007

Cited by 25 publications

(6 citation statements)

References 21 publications

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“…During these episodes, the 137 Cs was dominantly of a water-soluble/exchangeable form ( Fig. 12) 46) observed 7 Be and low levels of 137 Cs in air in Cuba during 1994-1998. The 137 Cs exhibited a seasonal pattern with a spring peak and an average concentration range of 0.6-1.9 Bq/m 3 .…”

Section: Northern and Eastern Europe Including Russia (Boreal Forestmentioning

confidence: 92%

Anthropogenic Radioactivity in Aerosol

Igarashi

2009

Jpn. J. Health Phys.

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Large-scale injection of huge amounts of any pollutant into the atmosphere has health and environmental impacts, but also provides an opportunity for understanding associated bio-geochemical cycles. Radiologically important, long-lived radionuclides emitted by atmospheric nuclear tests, such as 90 Sr, 137 Cs, and plutonium isotopes, are good examples. These radionuclides remain in the biosphere, although dilution and radioactive decay have mitigated their radiation impact, which is at present negligible compared with natural radiation. Nevertheless, the study of their redistribution over the Earth , s surface can enhance understanding of various environmental processes. In this review, available up-to-date information on the source, transport, and deposition of these radionuclides in the atmosphere is collected and these aspects of radionuclides in various global regions are reviewed. In regions adjacent to arid or semi-arid lands, aeolian dust is likely the dominant source of these radionuclides, whereas in northern regions adjacent to contaminated boreal forests, forest res are a more important source, especially of 137 Cs in air. Understanding of the atmospheric processes responsible for the redistribution of these radionuclides can improve forecast models in various environmental research elds. Future tasks include continued long-term monitoring and data integration with global data consistency and data analysis with modern chemical transport models. YASUHITO IGARASHIYasuhito IGARASHI is a Senior Researcher at Atmospheric Environment and Applied M e t e o r o l o g y R e s e a r c h D e p a r t m e n t , Meteorological Research Institute, Japan Meteorological Agency. He obtained his Ph.D. degree in chemistry from University of Tsukuba in 1987. Although he has worked on various research elds so far, radioactivity has constantly been the most important element of his concerns. His current interests are atmospheric aerosols and the precursors, and their possible influences on climate as well as general environmental change, etc.

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Section: Northern and Eastern Europe Including Russia (Boreal Forestmentioning

confidence: 92%

Anthropogenic Radioactivity in Aerosol

Igarashi

2009

Jpn. J. Health Phys.

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“…Cesium-137 concentrations at other PBL stations ranged from 0.36 to 2.23 mBq m À3 in Denmark (Fogh et al, 1999); from 0.14 to 84 mBq m À3 in Monaco (Lee et al, 2002); from 5 to 85 mBq m À3 in Belgrade (Todorovic et al,1999) and from 0.18 to 3.24 mBq m À3 in Cuba (Alonso Hernández et al, 2004). However, to the authors knowledge only one study has carried out measurements of 137 Cs at a high-altitude site in Jungfraujoch (Switzerland) during July 2006 showing concentrations of up to 23 mBq m À3 (Flury and Völkle, 2007).…”

Section: Artificial: 137 Csmentioning

confidence: 98%

Comparative trends and seasonal variation of 7Be, 210Pb and 137Cs at two altitude sites in the central part of France

Bourcier

Masson

Laj

et al. 2011

Journal of Environmental Radioactivity

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“…This can be seen in Figure 6. This graph is obtained from an empirical equation of the extrapolated values of 137 Cs concentrations from 7 Be as a tracer in regions of relatively latitudes near to 30°north (Hernández et al, 2003;Escudero, 2007).…”

Section: Concentration Of Radioisotopes In Filters and Siltsmentioning

confidence: 99%