Authors:
Pelle Mellin (1), Hanna Nilsson Åhman (1), Tatiana Fedina (1)
1- Swerim, Sweden
Abstract:
Concerns regarding the health implications of fine metal powder handling remain unresolved. Existing regulations such as occupational exposure limits are too blunt and do not guarantee safety in working environments. To better understand the health impact, airborne particles were captured in several PBF – LB workshops. Most 0-10 µm powder particles, which are considered respirable, are typically removed from as-atomized powders before being sold as PBF-LB powders. Yet, airborne 0-10 µm powder particles were found in all workshops. For cytotoxicity tests, we extracted the 0-10 µm powder particles using an AC1000G screenless air classifier from Blue Power. Furthermore, their size and physio-chemical characteristics were correlated with metal release in artificial lysosomal fluid (ALF). Results revealed a notable difference between the whole PBF-LB fraction and extracted 0-10 µm particles. No cytotoxicity was noted.
DOI:
https://doi.org/10.59499/EP246281401
