ABSTRACT
Assessing the inhalation exposure to airborne nanomaterials requires characterization of the workplace aerosols. These aerosols can be characterized using various metrics, for example, the particle number, surface area, or mass concentrations. These concentrations can be measured either as particle size-resolved distributions or as size-integrated total concentrations. Depending on the type of measurement or sampling device used, these data are provided as either time-resolved data or
2.1 Introduction ....................................................................................................25 2.2 Size-Integrated and Time-Resolved Measurements .......................................27
