|Appears in Collections:||Biological and Environmental Sciences Journal Articles|
|Peer Review Status:||Refereed|
|Title:||Quantifying Cs-137 aggregated transfer coefficients in a semi-natural woodland ecosystem adjacent to a nuclear reprocessing facility|
|Authors:||Toal, Mark E|
Johnson, Michael S
Jones, Steve R
transfer factors dose
|Citation:||Toal ME, Copplestone D, Johnson MS, Jackson D & Jones SR (2002) Quantifying Cs- 137 aggregated transfer coefficients in a semi-natural woodland ecosystem adjacent to a nuclear reprocessing facility, Journal of Environmental Radioactivity, 63 (1), pp. 85-103.|
|Abstract:||Radiocaesium (137Cs) activity concentrations and aggregated transfer factors (Tag values) were calculated for vascular plants, fungal fruiting bodies and invertebrates in a semi-natural Picea sitchensis woodland (Lady Wood) adjacent to the British Nuclear Fuels plc. reprocessing facility at Sellafield, Cumbria, UK. The Tag values for vascular plants ranged from 7.1×10−4–1.9×10−2 m2 kg−1, the maximum value being for Pteridium aquilinum. Fungal fruiting bodies had higher Tag values (1.9×10−3–1.8×10−1 m2 kg−1) than vascular plants, with a maximum value for Mycena galericulata. None of the activity concentrations for edible foodstuffs collected within this study (fungi and berries) exceeded the EC recommended limits of 137Cs in foodstuffs grown within the UK. The invertebrate community sampled during the study had Tag values ranging from 3.4×10−4 to 1.3×10−2 m2 kg−1. There were no systematic differences in 137Cs activity concentration between invertebrate guilds, or between seasonal cohorts within guilds. The invertebrates in Lady Wood were exposed to a dose from 137Cs (internal gamma + beta and external gamma) ranging between 4.37×10−4 and 6.40×10−4 mGy day−1. Including dose from radionuclides other than 137Cs and accounting for uncertainties due to the relative biological effectiveness of differing radionuclides could increase total dose by approximately an order of magnitude. These dose rates are at least three orders of magnitude lower than the 1 mGy d−1 level at which harm may be caused to terrestrial biota, hence the risk to the invertebrate community from the effects of i|
|Rights:||The publisher does not allow this work to be made publicly available in this Repository. Please use the Request a Copy feature at the foot of the Repository record to request a copy directly from the author. You can only request a copy if you wish to use this work for your own research or private study.|
|copplestone_environmentalradioactivity_2002.pdf||316.09 kB||Adobe PDF||Under Embargo until 31/12/2999 Request a copy|
Note: If any of the files in this item are currently embargoed, you can request a copy directly from the author by clicking the padlock icon above. However, this facility is dependent on the depositor still being contactable at their original email address.
This item is protected by original copyright
Items in the Repository are protected by copyright, with all rights reserved, unless otherwise indicated.
If you believe that any material held in STORRE infringes copyright, please contact firstname.lastname@example.org providing details and we will remove the Work from public display in STORRE and investigate your claim.