Journal article
Methodology for determining action levels for clean-up of contaminated urban and agricultural environments
A methodology for determining justified action levels for clean-up of contaminated environments has been elaborated based upon dose reductions and monetary costs associated with the clean-up or remedial measures. Action levels can be expressed as dose or contamination levels above which clean-up is justified and below which it is not.
This paper discusses the factors needed to determine such action levels. The most important of these factors are the efficiency of the clean-up and the monetary costs of the clean-up operation. Examples of justified action levels for clean-up of urban and agricultural environments have been determined from uncertainty analyses.
With selected parameter distributions for clean-up of urban and semi-urban environments, justified action levels for clean-up are found to be in the range of about 1-10 mSv y(-1). With selected parameter distributions for agricultural countermeasures, action levels for reduction of activity content in milk have been determined to be from less than 100 Bq L(-1) up to a few thousand Bq L(-1), corresponding to residual individual ingestion doses of about 0.1-0.5 mSv y(-1).
The presented methodology, which can be extended to include more complex environments, can in a simple way give the decision maker an indication of when it is justified to clean a contaminated environment.
Language: | English |
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Year: | 1998 |
Pages: | 120-129 |
ISSN: | 15385159 and 00179078 |
Types: | Journal article |
DOI: | 10.1097/00004032-199808000-00001 |