Dynamic model for the transfer of CS-137 through the soil-grass-lamb foodchain

• Main Author: Nielsen, S.P.
• Other Authors: Dahlgaard, H.
• Format: Book Part
• Language: English
• Published: Elsevier 1994
• Subjects: Nuklear sikkerhed og strålingsbeskyttelse; Faroe Islands; Norway; Iceland
• Online Access: https://orbit.dtu.dk/en/publications/29901eea-c006-4979-af52-05cfa9ede56d; https://doi.org/10.1016/S0166-1116(08)71712-6

A dynamic radioecological model for the transfer of radiocaesium through the soil-grass-lamb foodchain was constructed on the basis of field data collected in 1990–1993 from the Nordic countries: Denmark, Faroe Islands, Finland, Iceland, Norway and Sweden. The model assumes an initial soil contamination of one kilobecquerel of 137Cs per square metre and simulates the transfer to grass through root uptake in addition to direct contamination from resuspended activity. The model covers two different soil types: clay-loam and organic, with significantly different transfers of radiocaesium to grass. The implementation of the metabolism of the lamb includes an assumption of a biological halflife of three weeks for radiocaesium.