HSE will be inspecting sites that carry out metal fabrication in January to March 2020 to check compliance with the law. The focus will be on control of exposure to welding fume and metalworking fluids. All welding fumes (including mild steel) are now classed as carcinogens. Metalworking fluids can cause occupational asthma, occupational hypersensitivity pneumonitis and dermatitis. Source - Metalworking, Welding and Engineering eBulletin: Dec 2019.