Individual:
http://rdf.iit.demokritos.gr/2014/iaeaSafetyGlossary/id22
Annotations (2)
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nreo:canonicalLabel "activity median aerodynamic diameter (AMAD)" (en)
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skos:definition "The value of aerodynamic diameter5 such that 50% of the airborne <br/>
'activity' in a specified aerosol is associated with particles smaller than the <br/>'AMAD', and 50% of the 'activity' is associated with particles larger than the <br/>'AMAD'.<br/>
Used in internal dosimetry for simplification as a single ‘average’ value of <br/>aerodynamic diameter representative of the aerosol as a whole.<br/>The 'AMAD' is used for particle sizes for which deposition depends principally <br/>on inertial impaction and sedimentation (i.e. typically those greater than <br/>about 0.5 μm). For smaller particles, deposition typically depends primarily on <br/>'diffusion', and the <i><b>activity median thermodynamic diameter (AMTD)</b></i> — <br/>defined in an analogous way to the 'AMAD', but with reference to the <br/>thermodynamic diameter5 of the particles — is used.<br/>" (en)
Types (1)
Usage (5)