GIS supported calculations of 137Cs deposition in Sweden based on precipitation data

Almgren, Sara; Nilsson, Elisabeth; Erlandsson, B.; Isaksson, Mats

doi:10.1016/j.scitotenv.2006.03.020

Cited by 19 publications

(12 citation statements)

References 15 publications

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“…It is now well established that 137 Cs from Chernobyl accident was deposited on soils mainly during raining events at the beginning of May 1986 (Almgren et al, 2006;Mitchell et al, 1990;Renaud et al, 2003). In Montagne Noire and Savoie, no precipitation occurred between 1 and 5 May 1986 and our hypothesis was that the artificial radionuclides were mainly coming from nuclear weapon tests (NWT) global fallout.…”

Section: Contributions Of Surface Air To Aerosol Deposited In Mountaimentioning

confidence: 79%

“…In addition, they were more or less affected by Chernobyl-derived artificial radionuclides. Indeed the deposition of Chernobyl-derived 137 Cs in soils depends largely on the plume trajectory and on the rainfall amount from the 1 to 5 May 1986 (Almgren et al, 2006;Renaud et al, 2003). Whereas large precipitations occurred at that time over Eastern Corsica, Jura and Vosges (up to 140 mm) and induced local deposition, very low depositions of Chernobyl-derived 137 Cs are assumed over Montagne Noire and Savoie mountains because no precipitation was recorded in May by Me´te´o-France.…”

Section: Site Descriptionmentioning

confidence: 99%

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Aerosol deposition and origin in French mountains estimated with soil inventories of 210Pb and artificial radionuclides

Roux¹,

Pourcelot²,

Duffa³

et al. 2008

Atmospheric Environment

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Radionuclide inventories were measured in soils from different French mountainous areas: Chaıˆne des Puys (Massif Central), Eastern Corsica, Jura, Montagne Noire, Savoie, Vosges and Rhine Valley. 210 Pb soil inventories were used to estimate long-term (475 yr) deposition of submicron aerosols. Whereas 210 Pb total deposition is explained partly by wet deposition, as demonstrated by increase of 210 Pb inventory with annual rainfall; a part of 210 Pb in the soils of higher altitude is caused by orographic depositions. Using measurements of radionuclides coming from nuclear aerial weapon tests ( 137 Cs and Pu isotopes), we were able to estimate the origin of aerosols deposited in high-altitude sites and to confirm the importance of occult deposition and feeder-seeder mechanism. Using a simple mass balance model, we estimate that occult deposition and feeder-seeder mechanisms account to more than 50% of total deposition of 210 Pb and associated submicron aerosols in French altitude sites.

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Section: Contributions Of Surface Air To Aerosol Deposited In Mountaimentioning

confidence: 79%

Section: Site Descriptionmentioning

confidence: 99%

Aerosol deposition and origin in French mountains estimated with soil inventories of 210Pb and artificial radionuclides

Roux¹,

Pourcelot²,

Duffa³

et al. 2008

Atmospheric Environment

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“…Such factors might give an unexpected appearance of the depth distribution of radionuclides (Forsberg, 2000;Isaksson, 1997;Keith-Roach and Livens, 2002;MullerLemans and vanDorp, 1996;Van der Stricht and Kirchmann, 2001). The deposition from the two sources has been determined from the precipitation in another study by the authors (Almgren et al, 2005), and as a first approximation these values were used as fixed parameters only by varying v and D in the fitting procedure. However, the curves were often not successfully fitted to the measured data using the predicted deposition densities, which may be due to the fact that the inventory in the soil today does not represent the original deposition because of redistribution processes.…”

Section: Discussionmentioning

confidence: 99%

Vertical migration studies of 137Cs from nuclear weapons fallout and the Chernobyl accident

Almgren

Isaksson

2006

Journal of Environmental Radioactivity

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“…The procedure includes testing the possible existence of spatial autocorrelation in data followed by visualizing and quantifying, then applying a proper model to experimental Variogram and finally incorporating the results into an interpolation process to predict dose rate values (Khoshbinfar 2010). Among different geostatistical interpolation methods, it is suggested that the Kriging is reliable enough for environmental radioactivity interpretations which produces visually appealing maps from irregularly spaced data (Almgren et al 2006;Mabit and Bernard 2007;Szegvary et al 2007 …”

Section: Geostatistical Treatmentmentioning

confidence: 99%

Spatial variability of soil 137Cs in the South Caspian region

Khoshbinfar

Moghaddam

2011

Environ Monit Assess

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In a comprehensive program of environmental radioactivity survey in South Caspian region, (137)Cs inventories in soil has been measured at more than 50 sites in the Iranian northern province of Guilan. This has been the first wide-range survey of soil radionuclide inventories in the narrow band sensitive ecosystem of south Caspian shore. Radioactivity measurements were carried out using HPGe gamma-spectrometry system. The activity concentration of (137)Cs in surface soil exhibits a mean value of 17.6 ± 9.4 Bq kg(-1), with a range of 2.3-41.7 Bq kg(-1). In many sites, split-level sampling method has been applied down to a depth of 20 cm. There were found generally two profiles. Most profiles exhibit a negative exponential distribution, while others revealed a clear subsurface peak in 5-10-cm layer. Cesium deposition in the study area has been estimated to be in the range of 0.38-2.9 kBq m(-2) with a mean value of 1.7 kBq m(-2). Distribution patterns of (137)Cs concentration levels and deposition values have been estimated using Kriging interpolation method. Observed hotspots in deposition pattern coincide with areas of higher precipitation.

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GIS supported calculations of 137Cs deposition in Sweden based on precipitation data

Cited by 19 publications

References 15 publications

Aerosol deposition and origin in French mountains estimated with soil inventories of 210Pb and artificial radionuclides

Aerosol deposition and origin in French mountains estimated with soil inventories of 210Pb and artificial radionuclides

Vertical migration studies of 137Cs from nuclear weapons fallout and the Chernobyl accident

Spatial variability of soil 137Cs in the South Caspian region

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