An electrostatic discharge between postdoctoral researcher Thea Ekins-Coward and a gas storage tank containing hydrogen, oxygen, and carbon dioxide likely caused an explosion at the University of Hawaii, Mānoa, in which Ekins-Coward lost one of her arms, according to a report by the University of California Center for Laboratory Safety (UCCLS).
UH hired UCCLS to conduct an independent investigation of the March 16 accident and released the report on July 1. Another investigation by the Honolulu Fire Department, released in April, concluded that the cause was a spark from the pressure gauge. UCCLS dug deeper than the fire department and contracted with an outside laboratory to recreate and test the experimental setup. Those tests ruled out all causes other than a static discharge...I have much more to say on this, but I wanted to note that the report has been released, and that the cause of the explosion was not the digital pressure gauge, as originally suspected by the Honolulu Fire Department.
UPDATE: Changed headline, adding bolding.