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Previous by Date: Subject: Re: [DCHAS-L] near-miss reporting form Date: Tuesday, January 12, 2016 2:34:47 PM Author: "Alnajjar, Mikhail S" <ms.alnajjar**At_Symbol_Here**PNNL.GOV> |
Next by Date: Subject: Re: [DCHAS-L] near-miss reporting form Date: Tue, 12 Jan 2016 15:12:22 -0500 Author: Charles Corey |
I suspect that many of us are not surprised by this...
- Ralph
ABSTRACT: 3D printing is gaining popularity by providing a tool for fast, cost-effective, and highly customizable fabrication. However, little is known about the toxicity of 3D-printed objects. In this work, we assess the toxicity of printed parts from two main classes of commercial 3D printers, fused deposition modeling and stereo- lithography. We assessed the toxicity of these 3D-printed parts using zebrafish (Danio rerio), a widely used model organism in aquatic toxicology. Zebrafish embryos were exposed to 3D-printed parts and monitored for rates of survival, hatching, and developmental abnormalities. We found that parts from both types of printers were measurably toxic to zebrafish embryos, with STL-printed parts significantly more toxic than FDM-printed parts. We also developed a simple post-printing treatment (exposure to ultraviolet light) that largely mitigates the toxicity of the STL-printed parts. Our results call attention to the need for strategies for the safe !
disposal of 3D-printed parts and printer waste materials.
Ralph Stuart, CIH, CCHO
Chemical Hygiene Officer
Keene State College
ralph.stuart**At_Symbol_Here**keene.edu
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