hyperbaric welding

TIL.

The hazards of underwater welding include the risk of electric shock for the welder. To prevent this, the welding equipment must be adaptable to a marine environment, properly insulated and the welding current must be controlled. Commercial divers must also consider the occupational safety issues that divers face, most notably the risk of decompression sickness due to the increased pressure of breathing gases.[9] Many divers have reported a metallic taste that is related to the galvanic breakdown of dental amalgam.[10][11][12] There may also be long term cognitive and possibly musculoskeletal effects associated with underwater welding.[13]