Midwives Awarded Nearly $1 Million in Nitrous Oxide Exposure Case

More than 120 midwives and maternity staff have been awarded nearly £750,000 (approximately $950,000 USD) in compensation after being exposed to high levels of nitrous oxide at Basildon University Hospital. The compound, commonly known as laughing gas, is used for pain relief in labor, but long-term exposure can lead to adverse health effects.

The Royal College of Midwives (RCM) stated that staff at the hospital were exposed to the gas due to poor ventilation in the maternity unit and leaks from gas lines between 2021 and 2023. Affected midwives reported symptoms including fatigue, headaches, brain fog, and anxiety. The RCM represented over 120 workers in legal action, which resulted in the settlement.

Daniel Poet, a solicitor for the RCM, expressed pride in securing the compensation but emphasized that staff should not have been placed at risk. He noted that the trust was aware of the dangers in 2021, yet staff were not informed until the following year, and safety measures were not implemented for another year.

An independent review conducted in 2024 by the Good Governance Institute found an "unacceptable delay" by the Mid and South Essex NHS Foundation Trust. The review concluded that midwives and other staff on the maternity unit were exposed to "unnecessary risk or potential harm." It also stated that high levels of gas on the wards should have been treated as a significant health risk when concerns were first raised in July 2021, but this was not addressed until October 2022.

Gill Walton, head of the RCM, highlighted that midwives were breathing in dangerous levels of nitrous oxide for years while caring for patients. She described the settlement as a "landmark" that should prompt all NHS employers to pay attention to working conditions. Walton clarified that the case was about the workplace environment and not the safety of the gas for patients during labor.

Walton also raised concerns about the state of maternity buildings across the UK, noting that many facilities suffer from failing ventilation, leaking equipment, and outdated infrastructure. She stated that the RCM continues to address recurring problems with ventilation and air quality systems at a local level and called for urgent government investment to upgrade maternity buildings to ensure safe workplaces and, consequently, safe patient care.

Louise Crosby, chief nursing and quality officer for Mid and South Essex NHS Foundation Trust, acknowledged that the trust should have acted more quickly to resolve the issues and apologized to the affected staff. She added that the trust has learned from the incident and has since improved its oversight of medical gas monitoring across the Basildon Hospital maternity unit. A spokesperson for the trust reiterated these points, confirming that lessons have been learned and monitoring has been enhanced.