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Radiat Prot Dosimetry. 2007;124(3):274-9. Epub 2007 Aug 27.

Characterisation of workplaces with risks of internal exposures: air sampling.

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NUKEM Ltd, 351 Harwell, Didcot, OXON, OX11 0RA, UK.


The measurement of air samples may be used to assess risks of internal exposures, either by the use of workplace static air samplers (SAS) or personal air samplers (PAS). These measurements need to incorporate information on the physical and chemical nature of the aerosol, and the relationship between the sampled and potentially breathed aerosol. This paper provides an overview of methods, which are typically used in occupational dosimetry to determine these characteristics. A specific practical example is provided to illustrate how SAS are used to determine that potential personal doses are less than 1 mSv per year, and therefore do not require individual monitoring. The paper also discusses the nature and potential impact of the uncertainties associated with PAS monitoring, and how this is managed in practice.

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