Nanotechnologies - Assessment of the concentrations of carbon black and amorphous silica in nanoscale in a mixed dust manufacturing environment

This document provides a description of the presence of carbon black and/or amorphous particles in air, based on particle size, in air samples collected in mixed dust industrial manufacturing environments: A guide for quantitative analysis and identification of the number concentration (particles/cm3) of shaped silica particles: This document describes the use of an ELPCI (Charged Low Pressure Cascade Impactor) to collect air samples on a 25 mm diameter polycarbonate membrane: This document is applicable to sampling of air containing various types of particles in manufacturing environments: Aerosols composed of particles with different physical properties or environments with controlled interference factors (such as diesel sources): Although other sampling methods May also be applicable, but this document is limited to describing methods relevant to ELPCI: The particle morphology and elemental composition of the samples collected by ELPCI were analyzed by TEM and EDS to determine the particle type: The information is combined with the size-particle concentration information determined by ELPCI to obtain the concentration of the target material in the air: