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The biosphere at Forsmark. Data, assumptions and models used in the SR-Can assessment

Abstract

This report summarises the method adopted for safety assessment following a radionuclide release into the biosphere. The approach utilises the information about the site as far as possible and presents a way of calculating risk to humans. The parameters are topography, where there is good understanding of the present conditions and the development over time is fairly predictable. The topography affects surface hydrology, sedimentation, size of drainage areas and the characteristics of ecosystems. Other parameters are human nutritional intake, which is assumed to be constant over time, and primary production (photosynthesis), which also is a fairly constant parameter over time. The Landscape Dose Factor approach (LDF) gives an integrated measure for the site and also resolves the issues relating to the size of the group with highest exposure. If this approach is widely accepted as method, still some improvements and refinement are necessary, e.g. collecting missing site data, reanalysing site data, reviewing radionuclide specific data, reformulating ecosystem models and evaluating the results with further sensitivity analysis. The report presents descriptions and estimates not presented elsewhere, as well as summaries of important steps in the biosphere modelling that are presented in more detail in separate reports. The intention is to give  More>>
Authors:
Publication Date:
Oct 15, 2006
Product Type:
Technical Report
Report Number:
SKB-R-06-82
Resource Relation:
Other Information: 160 refs., 36 figs., 26 tabs.
Subject:
12 MANAGEMENT OF RADIOACTIVE WASTES, AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES; RADIOACTIVE WASTE DISPOSAL; UNDERGROUND DISPOSAL; SAFETY ANALYSIS; RADIONUCLIDE MIGRATION; RADIATION DOSES; SITE CHARACTERIZATION; MATHEMATICAL MODELS; FOOD CHAINS; ECOSYSTEMS
OSTI ID:
20833750
Research Organizations:
Swedish Nuclear Fuel and Waste Management Co., Stockholm (Sweden)
Country of Origin:
Sweden
Language:
English
Other Identifying Numbers:
Other: ISSN 1402-3091; TRN: SE0708001
Availability:
Also available from: http://www.skb.se/upload/publications/pdf/R-06-82webb.pdf; Commercial reproduction prohibited; OSTI as DE20833750
Submitting Site:
SWDN
Size:
117 pages
Announcement Date:
Feb 20, 2007

Citation Formats

Karlsson, Sara, Kautsky, Ulrik, Loefgren, Anders, and Soederbaeck, Bjoern. The biosphere at Forsmark. Data, assumptions and models used in the SR-Can assessment. Sweden: N. p., 2006. Web.
Karlsson, Sara, Kautsky, Ulrik, Loefgren, Anders, & Soederbaeck, Bjoern. The biosphere at Forsmark. Data, assumptions and models used in the SR-Can assessment. Sweden.
Karlsson, Sara, Kautsky, Ulrik, Loefgren, Anders, and Soederbaeck, Bjoern. 2006. "The biosphere at Forsmark. Data, assumptions and models used in the SR-Can assessment." Sweden.
@misc{etde_20833750,
title = {The biosphere at Forsmark. Data, assumptions and models used in the SR-Can assessment}
author = {Karlsson, Sara, Kautsky, Ulrik, Loefgren, Anders, and Soederbaeck, Bjoern}
abstractNote = {This report summarises the method adopted for safety assessment following a radionuclide release into the biosphere. The approach utilises the information about the site as far as possible and presents a way of calculating risk to humans. The parameters are topography, where there is good understanding of the present conditions and the development over time is fairly predictable. The topography affects surface hydrology, sedimentation, size of drainage areas and the characteristics of ecosystems. Other parameters are human nutritional intake, which is assumed to be constant over time, and primary production (photosynthesis), which also is a fairly constant parameter over time. The Landscape Dose Factor approach (LDF) gives an integrated measure for the site and also resolves the issues relating to the size of the group with highest exposure. If this approach is widely accepted as method, still some improvements and refinement are necessary, e.g. collecting missing site data, reanalysing site data, reviewing radionuclide specific data, reformulating ecosystem models and evaluating the results with further sensitivity analysis. The report presents descriptions and estimates not presented elsewhere, as well as summaries of important steps in the biosphere modelling that are presented in more detail in separate reports. The intention is to give the reader a coherent description of the steps taken to calculate doses to biota and humans, including a description of the data used, the rationale for a number of assumptions made during parameterisation, and of how the landscape context is applied in the modelling, and also to present the models used and the results obtained.}
place = {Sweden}
year = {2006}
month = {Oct}
}