The workplace exposure standard (WES) for Aluminium (welding fumes) has been reduced from 5 mg/m³ to 1 mg/m³ (measured over an 8-hour time weighted average).
Following WHS ministers’ agreement, Safe Work Australia has now published an updated WES list to include the reduced workplace exposure standard.
Aluminium welding is widely used in boat building and repair. Like other welding processes, it produces hazardous fumes that can harm workers’ health.
This reduction brings the WES for aluminium welding fumes in line with the existing WES for welding fumes (not otherwise classified) to better protect workers from harmful effects of welding fumes.
Next steps for employers
- Review and update your welding fume controls to make sure exposure stays below the 1 mg/m³ limit. Take all reasonably practicable steps to eliminate and minimise risks.
- Use the model Code of Practice: Welding Processes for guidance. It provides advice and control measures for welding hazards, such as ventilation and personal protective equipment, and outlines other WHS duties.
- Properly worn respiratory protective equipment can be taken into account when determining compliance with the new limit, if all other reasonably practicable higher control measures in the hierarchy of controls have been implemented.
- Get expert advice (such as from an occupational hygienist) if you are not sure you are meeting the new limit and to find out if your control measures are appropriate.
- Stay informed of updates from the WHS regulator in your jurisdiction to know when the new limit becomes legally enforceable in your jurisdiction.
For more information see the Aluminium (welding fumes) information sheet or for guidance check the model Code of Practice: Welding Processes.