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C-14 content in vegetation in the vicinities of Brazilian nuclear power reactors

Melazo Dias, C; Ventura Santos, R; Stenström, Kristina LU ; Gomes Nỉcoli, I; Skog, Göran LU and da Silveira Corrêa, R (2008) In Journal of Environmental Radioactivity 99(7). p.1095-1101
Abstract (Swedish)
Abstract in Undetermined

C-14 specific activities were measured in grass samples collected around Brazilian nuclear power reactors. The specific activity values varied between 227 and 299 Bq/kg C. Except for two samples which showed C-14 specific activities 22% above background values, half of the samples showed background specific activities, and the other half had a C-14 excess of 1-18%. The highest specific activities were found close to the nuclear power plants and along the main wind directions (NE and NNE). The activity values were found to decrease with increasing distance from the reactors. The unexpectedly high C-14 excess values found in two samples were related to the local topography, which favors C-14... (More)
Abstract in Undetermined

C-14 specific activities were measured in grass samples collected around Brazilian nuclear power reactors. The specific activity values varied between 227 and 299 Bq/kg C. Except for two samples which showed C-14 specific activities 22% above background values, half of the samples showed background specific activities, and the other half had a C-14 excess of 1-18%. The highest specific activities were found close to the nuclear power plants and along the main wind directions (NE and NNE). The activity values were found to decrease with increasing distance from the reactors. The unexpectedly high C-14 excess values found in two samples were related to the local topography, which favors C-14 accumulation and limits the dispersion of the plume. The results indicate a clear C-14 anthropogenic signal within 5 km around the nuclear power plants which is most prominent along northeastwards, the prevailing wind direction. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
carbon-14, Pressurized Water Reactor (PWR), vegetation, Brazil, environmental monitoring
in
Journal of Environmental Radioactivity
volume
99
issue
7
pages
1095 - 1101
publisher
Elsevier
external identifiers
  • wos:000257008200012
  • scopus:44149111327
ISSN
1879-1700
DOI
10.1016/j.jenvrad.2007.12.025
language
English
LU publication?
yes
id
df48187e-2fba-4e6d-a81b-ad5e6c4d22f7 (old id 741468)
date added to LUP
2007-12-13 12:11:22
date last changed
2017-07-02 03:41:42
@article{df48187e-2fba-4e6d-a81b-ad5e6c4d22f7,
  abstract     = {<b>Abstract in Undetermined</b><br/><br>
C-14 specific activities were measured in grass samples collected around Brazilian nuclear power reactors. The specific activity values varied between 227 and 299 Bq/kg C. Except for two samples which showed C-14 specific activities 22% above background values, half of the samples showed background specific activities, and the other half had a C-14 excess of 1-18%. The highest specific activities were found close to the nuclear power plants and along the main wind directions (NE and NNE). The activity values were found to decrease with increasing distance from the reactors. The unexpectedly high C-14 excess values found in two samples were related to the local topography, which favors C-14 accumulation and limits the dispersion of the plume. The results indicate a clear C-14 anthropogenic signal within 5 km around the nuclear power plants which is most prominent along northeastwards, the prevailing wind direction.},
  author       = {Melazo Dias, C and Ventura Santos, R and Stenström, Kristina and Gomes Nỉcoli, I and Skog, Göran and da Silveira Corrêa, R},
  issn         = {1879-1700},
  keyword      = {carbon-14,Pressurized Water Reactor (PWR),vegetation,Brazil,environmental monitoring},
  language     = {eng},
  number       = {7},
  pages        = {1095--1101},
  publisher    = {Elsevier},
  series       = {Journal of Environmental Radioactivity},
  title        = {C-14 content in vegetation in the vicinities of Brazilian nuclear power reactors},
  url          = {http://dx.doi.org/10.1016/j.jenvrad.2007.12.025},
  volume       = {99},
  year         = {2008},
}