Journal
JOURNAL OF ENVIRONMENTAL RADIOACTIVITY
Volume 100, Issue 12, Pages 1100-1108Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.jenvrad.2009.05.010
Keywords
Screening values; Predicted no-effect dose rate; Species sensitivity distribution; Ecological risk assessment; Radiation protection; Ionising radiation
Categories
Funding
- EC [036425]
- Natural Environment Research Council [ceh010023] Funding Source: researchfish
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Criteria are needed to be able to judge the level of risk associated with dose rates estimated for non-human biota. In this paper, European guidance on the derivation of predicted no-effect chemical concentrations has been applied to appropriate radiation sensitivity data. A species sensitivity distribution fitted to the data for all species resulted in a generic predicted no-effect dose rate of 10 mu Gy h(-1). Currently, data are inadequate to derive screening values for separate organism groups. A second, higher, benchmark could aid in decision making by putting results into context on the scale of no effect to a risk of 'serious' effect. The need for, meaning and use of such a value needs to be debated by the wider community. This paper explores potential approaches of deriving scientific input to this debate. The concepts proposed in this paper are broadly consistent with the framework for human protection. (C) 2009 Elsevier Ltd. All rights reserved.
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