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Assessing ecological effects of radionuclides: data gaps and extrapolation issues
Stockhom University.ORCID iD: 0000-0001-8536-373X
2004 (English)In: Journal of Radiological Protection, ISSN 0952-4746, E-ISSN 1361-6498, Vol. 24, no 4A, A139-A155 p.Article in journal (Refereed) Published
Abstract [en]

By inspection of the FASSET database on radiation effects on non-human biota, one of the major difficulties in the implementation of ecological risk assessments for radioactive pollutants is found to be the lack of data for chronic low-level exposure. A critical review is provided of a number of extrapolation issues that arise in undertaking an ecological risk assessment: acute versus chronic exposure regime; radiation quality including relative biological effectiveness and radiation weighting factors; biological effects from an individual to a population level, including radiosensitivity and lifestyle variations throughout the life cycle; single radionuclide versus multi-contaminants. The specificities of the environmental situations of interest (mainly chronic low-level exposure regimes) emphasise the importance of reproductive parameters governing the demography of the population within a given ecosystem and, as a consequence, the structure and functioning of that ecosystem. As an operational conclusion to keep in mind for any site-specific risk assessment, the present state-of-the-art on extrapolation issues allows us to grade the magnitude of the uncertainties as follows: one species to another > acute to chronic = external to internal = mixture of stressors > individual to population > ecosystem structure to function.

Place, publisher, year, edition, pages
2004. Vol. 24, no 4A, A139-A155 p.
Keyword [sv]
ekotoxikologi, förorening, riskbedömning
National Category
Natural Sciences
URN: urn:nbn:se:sh:diva-5761DOI: 10.1088/0952-4746/24/4A/009ISI: 000226750100010PubMedID: 15700703ScopusID: 2-s2.0-12344331314OAI: diva2:392680
Available from: 2011-01-27 Created: 2011-01-27 Last updated: 2016-10-04Bibliographically approved

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Gilek, Michael
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