While studying zebrafish embryos researchers at the University of California Riverside discovered that the zebrafish embryos quickly died after being exposed to 3D printed tools. They decided to test the level of toxicity present in 3D printed parts from the Stratasys Dimension Elite 3D printer and a Formlabs Form 1+ stereolithography 3D printers regularly used by the lab. They published their findings in a paper titled “Assessing and Reducing the Toxicity of 3D-Printed Parts,” online in the Environmental Science and Technology Letters journal, where they documented dramatically increased levels of dead or developmentally damaged embryos exposed to the 3D printed materials. You can read more about this study at 3DPrint.com: http://3dprint.com/103953/uc-riverside-study-toxicity/