RNSH Green Matters Issue#5

DECOMMISSIONING PIPED GAS FOR A GREENER TOMORROW

In a major stride towards creating a greener hospital environment, Royal North Shore has successfully decommissioned piped nitrous oxide in the Douglas building. This is a

significant step in reducing the facility’s carbon footprint. The initiative was a part of a broader review of medical gases led by the Net Zero Lead for Anesthetics, Dr Andrew Lindberg. The assessment identified the infrequent use of piped nitrous oxide in the Douglas Building. Smaller portable cylinders were identified as a safer option to supply the gas instead of the ageing piped infrastructure. “Leaks from Nitrous Oxide pipes can go unnoticed and contribute significantly to greenhouse gas emissions.” explained Dr. Lindberg. “By transitioning to portable cylinders, we eliminate these risks, reduce costs, and ensure there is no impact to clinical care”

Nitrous oxide is a potent greenhouse gas with a global warming potential (GWP) of 298, and an atmospheric lifetime of more than 100 years. Therefore, reducing nitrous oxide emissions can make a meaningful difference in lowering the hospital’s environmental impact. Decommissioning the old infrastructure not only reduces emissions but also lowers operational costs and supports the hospital’s vision for a more sustainable future. Looking ahead, the Hospital plans to evaluate and phase out piped nitrous oxide in other areas where it is not clinically required, continuing its journey towards a more environmentally responsible healthcare facility.

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