Welding may need to be performed within a confined space during bridge, ship or other construction project.
Some concerns of welding in a confined space:
(1) carbon monoxide
(2) oxygen depletion
(3) carbon dioxide
(4) leakage of welding gases
(5) toxic gas byproducts (welding fumes)
(6) ozone
(7) heat dissipation
Ventilation needs to be adequate to provide oxygen and to reduce concentration of toxic gases. It can also help to control the temperature in the space.
The welder needs to have respiratory protection against inhalation of welding fumes.
A welder who develops neurological or pulmonary complaints needs to be questioned about exposures and checked for exposure to toxic fumes.
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