respirable dust

Mass fraction of dust (particles) that penetrates to the unciliated airways of the lung (the alveolar region): it is represented by a cummulative log-normal curve having a median aerodynamic diameter of 4.25 Ám and a standard deviation of 1.5 (values for humans).

The term "respirable dust" was found in the following pages:

Link database: HSE: MDHS10/2 Cadmium and inorganic compounds of cadmium