Radon Exposure Risk at Nine UK Prisons Prompts Legal Action and Safety Concerns
Published on 08/05/2026 at 17:17 | Redaktion boerse-global.de
Reports confirmed this week that hundreds of inmates and staff across the UK prison estate face potential exposure to cancer-causing radon gas, with the number of facilities recording levels above the legal limit rising sharply in recent months.
Nine Prisons Exceed Actionable Radon Levels
Current monitoring has identified nine prisons where radon levels are classified as above actionable: HMP Dartmoor, East Sutton Park, Exeter, Leeds, Lincoln, Maidstone, Parc, Portland, and The Verne.
The Ministry of Justice has responded by implementing mitigation strategies, including specialised ventilation systems and the appointment of Radiation Protection Advisors. However, the scale of the issue is expanding. While 16 prisons exceeded legal limits in February, that figure has now grown to 24 facilities that have hit such levels at some point.
The Prison Officers Association (POA) has expressed significant concern over the health risks to staff. Radon is a colourless, odourless gas and a leading cause of lung cancer.
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HMP Dartmoor at Centre of Legal Action
The situation at HMP Dartmoor has become a focal point. High radon levels were first identified at the site in 2020, leading to its closure in 2024. Despite being unused, the facility continues to cost the government approximately £4 million annually.
Hundreds of former inmates and staff stationed at Dartmoor are pursuing group legal action against the government, following years of potential exposure before the facility was shuttered.
Prison Estate Under Growing Operational Pressure
The discovery of environmental hazards comes at a time of extreme operational strain for the Ministry of Justice. As of June, the prison population reached 85,858, nearing the system's total capacity of 89,120. Currently, 51 out of 120 prisons in England and Wales are classified as overcrowded.
Justice Secretary Alex Norris has warned of a capacity crisis, noting the government is exploring early release schemes to prevent the system from reaching breaking point. Approximately 5,000 prisoners are expected to be eligible for early release starting in October, though those convicted of murder, rape, and serious child sex offences are excluded.
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To address long-term capacity issues, Prime Minister Andy Burnham has pledged to launch the largest prison-building programme since the Victorian era. The government aims to deliver 14,000 new prison places by 2031 while reviewing sentencing options, including the status of prisoners held on Imprisonment for Public Protection (IPP) sentences.
