Killed in the line of work duties: we need to fix dangerous loopholes in health and safety laws
- Written by Diana Kelly, Associate Professor, School of History and Politics, University of Wollongong
 Why welding in a confined space is so dangerous: argon gas, used commonly in welding, is 38% denser than air. It can displace oxygen close to the ground. Being undetectable, this can lead to loss of consciousness and asphyxiation.Shutterstock
Why welding in a confined space is so dangerous: argon gas, used commonly in welding, is 38% denser than air. It can displace oxygen close to the ground. Being undetectable, this can lead to loss of consciousness and asphyxiation.ShutterstockDillon Wu died alone inside a metal tank. It is believed he was asphyxiated by argon gas, used in...

