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Welding fumes are a complex mix of fine particles and gases; in 2017, IARC classified all welding fumes as a Group 1 carcinogen. Australia’s WES for welding fumes (not otherwise classified) is now 1 mg/m³ (8‑hr TWA), with additional limits for metals like chromium (VI) and nickel. We assess exposures and design practical controls that welders will actually use.
• Our welding fume assessments start with task observation to identify process variables (e.g., welding method, consumable type, shielding gas) that influence fume generation.
• Personal sampling pumps with filter cassettes are used to collect respirable particulates, which are then analysed for metals such as manganese, chromium and nickel.
• We compare results to workplace exposure standards and recommend controls.
Recent Australian research shows many welders face high exposures, especially in confined or restricted spaces without adequate mechanical ventilation. We prioritise at‑source capture, airflow verification and real‑world PPE adoption to hit the new limits.
A practical action plan: LEV specification and positioning, ventilation checks, RPE selection/fit testing, and process improvements mapped to code‑of‑practice guidance.
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