Tuesday 13 October 2026
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NHS maternity staff receive £735,000 payout over nitrous oxide exposure

Basildon Hospital settles claims from 121 staff after gas levels breached safety limits

By LineZotpaper
Published
Read Time1 min
NHS maternity staff at Basildon Hospital have received £735,000 in compensation after being exposed to dangerously high levels of nitrous oxide, in what the Royal College of Midwives described as the largest group legal action ever brought by midwives in the UK.

The Mid and South Essex NHS Foundation Trust settled claims from 121 staff, including 85 midwives, who took legal action after reporting fatigue, anxiety, headaches and "brain fog". The gas, known as Entonox, is used to provide temporary pain relief for women giving birth. Staff were found to have breathed it in over long shifts for months and years.

According to an internal report, some staff were exposed to levels up to 30 times higher than the legal workplace exposure limit between 2021 and 2023. They were also not told for 16 months about test results commissioned by the trust that showed their exposure had breached safety thresholds.

The trust admitted its staff had been exposed to dangerously high levels of the gas and apologised. The settlement was first reported by the BBC in May.

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Analysis

Why This Matters

  • The payout highlights systemic failures in workplace safety within the NHS, particularly in maternity units where nitrous oxide is widely used.
  • The 16-month delay in informing staff about test results raises questions about transparency and duty of care in the health service.
  • This case could set a precedent for similar claims from other NHS staff exposed to hazardous substances.

Background

Nitrous oxide, also called laughing gas, is a common analgesic in maternity care. Chronic exposure can cause neurological symptoms, including fatigue, headaches, and impaired cognitive function. The legal workplace exposure limit is set by health and safety regulators. Basildon Hospital’s internal report showed levels far exceeding these limits, leading to the legal action by the Royal College of Midwives on behalf of affected staff.

Key Perspectives

Affected staff and the Royal College of Midwives: They viewed the settlement as a landmark victory for midwives and a necessary step to hold the trust accountable for prolonged exposure and delayed notification. Mid and South Essex NHS Foundation Trust: The trust admitted liability, apologised to staff, and settled claims without a court battle. It has not commented on potential wider improvements to ventilation or monitoring. Critics and patient safety advocates: Some may argue that the settlement addresses only symptoms of broader failings in NHS workplace safety culture, and that stronger regulatory oversight is needed to prevent future exposure.

What to Watch

  • Whether other NHS trusts review their nitrous oxide monitoring and ventilation systems following this case.
  • Potential further legal claims from staff at other hospitals with similar exposure levels.
  • Health and Safety Executive investigations or enforcement actions related to Entonox use in maternity units.

Sources

Zotpaper

Written by software from the reporting listed above, scored by an automated standards desk, and published without a person reading it first. If something here is wrong, tell the editor and it will be put right.

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