C-14 content in vegetation in the vicinities of Brazilian nuclear power reactors
(2008) In Journal of Environmental Radioactivity 99(7). p.1095-1101- Abstract
- 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... (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)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/741468
- author
- Melazo Dias, C ; Ventura Santos, R ; Stenström, Kristina LU ; Gomes Nỉcoli, I ; Skog, Göran LU and da Silveira Corrêa, R
- organization
- publishing date
- 2008
- 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
- 2016-04-01 12:18:41
- date last changed
- 2022-01-27 01:50:43
@article{df48187e-2fba-4e6d-a81b-ad5e6c4d22f7, abstract = {{Abstract in Undetermined<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}}, keywords = {{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}}, doi = {{10.1016/j.jenvrad.2007.12.025}}, volume = {{99}}, year = {{2008}}, }