Characteristics of nanoparticle formation and hazardous air pollutants emitted by 3D printer operations: from emission to inhalation.

ABSTRACT: This study examined the emissions of nanoparticles and hazardous air pollutants (HAPs) by 3D printer operations and evaluated nanoparticle deposition behavior using a prediction model. Nanoparticles and HAPs were sampled at the Inha University 3D printing center with five fused filament fabrication (FFF)-type 3D printers. The number size distribution of the nanoparticles exhibited a bimodal distribution with dominant peaks over a large size range between 70 and 100 nm and a smaller size range between 10 and 20 nm. With increasing 3D printer operation, the number concentration of 10 nm particles increased, and the final number concentration was 3.6 times higher than that of the background concentration. Nanoparticle formation and agglomeration were characterized by transmission electron mic

SUBMITTER: Youn JS 

PROVIDER: S-EPMC9065366 | biostudies-literature | 2019 Jun

REPOSITORIES: biostudies-literature