Individual:
http://rdf.iit.demokritos.gr/2014/iaeaSafetyGlossary/id138
Annotations (2)
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nreo:canonicalLabel "contamination" (en)
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skos:definition "1.' Radioactive substances' on surfaces, or within solids, liquids or gases <br/>
(including the human body), where their presence is unintended or <br/>undesirable, or the 'process' giving rise to their presence in such places.<br/>
Also used less formally to refer to a quantity, namely the 'activity' on a surface <br/>(or on a unit area of a surface).<br/>'Contamination' does not include residual 'radioactive material' remaining at a <br/>site after the completion of 'decommissioning'.<br/>
<b>!</b> The <br/>
term <br/>
'contamination' may have a connotation that is not intended. The <br/>
term 'contamination' refers only to the presence of 'radioactivity', and gives no <br/>indication of the magnitude of the hazard involved. <br/>
2. The presence of a 'radioactive substance' on a surface in quantities in <br/>
excess of 0.4 Bq/cm2 for beta and gamma emitters and <i>low toxicity alpha <br/>emitters</i>, or 0.04 Bq/cm2 for all other alpha emitters. (From Ref. [2].)<br/>
This is a regulatory definition of 'contamination', specific to the Transport <br/>Regulations. Levels below 0.4 <br/>
Bq/cm2 or 0.04 <br/>
Bq/cm2 would still be <br/>
considered 'contamination' according to the scientific definition (1).<br/>
<i><b>fixed contamination.</b></i> 'Contamination' other than 'non-fixed contamination'. <br/>(From Ref. [2].)<br/>
<i><b>non-fixed contamination.</b></i> 'Contamination' that can be removed from a <br/>surface during routine conditions of 'transport'. (From Ref. [2].)<br/>" (en)
Types (1)
Usage (27)