Question to the Department for Work and Pensions:

To ask the Secretary of State for Work and Pensions, if she will make it his policy to collect data on the number of workers who work (a) directly and (b) indirectly with welding fume who have received diagnosis of (i) nasal, (ii) septum, (iii) throat, (iv) stomach, (v) bowel, (vi) kidney, (vii) liver, (viii) lung and (ix) bladder cancer.

The Health and Safety Executive (HSE) is responsible for collection of data of workplace injury and illness. The Reporting of Injuries, Diseases and Dangerous Occurrences Regulations 2013 (RIDDOR) provides the national reporting framework for responsible persons (usually employers, the self-employed and people in control of work premises) to report certain cases of injury, diseases and specified dangerous occurrences to the relevant Enforcing Authority (HSE or Local Authority). Regulation 9 of RIDDOR requires the responsible person to report a diagnosis of any cancer attributed to an occupational exposure to a known human carcinogen in their current job.

When reporting, the responsible person must provide details on the affected person's occupation or job title and a description of the work that led to the disease. This would capture whether the person is a welder and/or carries out welding as part of their job. There is also the option to report the specific type of cancer being diagnosed.

HSE also collects data on occupational cancers through the Health and Occupational Reporting (THOR) network. This includes:

• Lung cancer and mesothelioma data from chest physicians (THOR-SWORD) and
• Skin cancer data from dermatologists (THOR-EPIDERM)

Where available, occupational information such as job title may be recorded, potentially identifying welders.

However, welders may also be exposed to other carcinogens, such as asbestos, during their work so it is difficult to directly link a diagnosis of cancer specifically to exposure to welding fumes.