dust

A term which, when used to describe dispersions of small solid particles in air or other gases, refers to those particles which are smaller than 76 micrometers. In construction work, the term generally applies to -3mm rock product after crushing.

[img_assist|nid=14491|title=Dust|desc=Area around a secondary crusher without dust suppression|link=none|align=left|width=266|height=200]