Mass median aerodynamic diameter | definition of mass median aerodynamic diameter by Medical dictionary
mass median aerodynamic diameter
Also found in: Acronyms
mass me·di·an ae·ro·dy·nam·ic di·am·e·ter (MMAD) (mas mē'dē-ăn ār'ō-dī-nam'ik dī-am'ĕ-tĕr)
The geometric mean of the aerodynamic diameters of a given sample of inhaled particles.
References in periodicals archive
In the present study, we used synthetic 1-[micro]m carbon and carbon/iron particulates, designed to simulate environmental particulates of mass median aerodynamic diameter
[less than or equal to] 2.5 [micro]m (P[M.sub.2.5]) that occur as airborne pollution.
The large particles [3.1 [micro]m mass median aerodynamic diameter
(MMAD)] were collected on the cover slips and showed 13% variability.