Measuring TiO₂N and AgHEC Airborne Particle Density during a Spray Coating Process.

ABSTRACT: Effective particle density is a key parameter for assessing inhalation exposure of engineered NPs in occupational environments. In this paper, particle density measurements were carried out using two different techniques: one based on the ratio between mass and volumetric particle concentrations; the other one based on the ratio between aerodynamic and geometric particle diameter. These different approaches were applied to both field- and laboratory-scale atomization processes where the two target NPs (N-doped TiO₂, TiO₂N and AgNPs capped with a quaternized hydroxyethylcellulose, AgHEC) were generated. Spray tests using TiO₂N were observed to release more and bigger particles than tests with AgHEC, as indicated by the measured particle mass concentrations a

SUBMITTER: Trabucco S 

PROVIDER: S-EPMC9503037 | biostudies-literature | 2022 Aug

REPOSITORIES: biostudies-literature