Gas Safety Trust report explores new ways to detect carbon monoxide poisoning

For immediate release – Tuesday 29 May 2018

Diagnosing carbon monoxide (CO) poisoning is notoriously difficult, as it produces common, non-specific symptoms such as headaches and nausea and mimics other, more common ailments such as flu and food poisoning. Accidental CO poisoning is considered rare, but it is likely not to be as rare as people think and it is preventable.

CO is a poisonous gas that you cannot see, smell or taste. This makes it difficult for those exposed to know a) that they have been poisoned and b) what they have been poisoned by. A healthcare professional is likely to be one of, if not, the first person to be approached by someone suffering from CO poisoning and making an accurate diagnosis is important to prevent further exposure.

The most commonly used biomarker associated with the identification of exposure to CO, carboxyhaemoglobin, is now considered less useful than previously thought and cases of exposure are being missed. The need to identify new biomarkers has been suggested: biomarkers that will ultimately assist clinicians in making a diagnosis of CO poisoning and help them in their assessment of patient outcome and referral decisions.

In response to this, today (29 May 2018) the Gas Safety Trust  has published a report which considers current research into new biomarkers, what lessons could be learnt from similar areas of study and how we might explore and challenge thinking, to answer questions relating to the neurological effects associated with CO exposure. This report, which follows on from a workshop held in September 2017, can be found on the CO Portal here.

At this event the implications of exposure to CO on health were closely examined and the broad findings, in the report show that:

  • There are gaps in the evidence base.
  • Little is known about the effects of low level chronic exposure to CO.
  • Incorporating knowledge from translational areas of research into the development of work on CO is important.
  • A combination of approaches is required to develop novel biomarkers.
  • The needs of the clinician have to be considered.
  • Developing a dedicated funding programme of research work is critical.

Chris Bielby, GST Chair said:

“The Gas Safety Trust is committed to supporting the improved diagnosis and treatment of CO poisoning. We were pleased to be able to convene this group of experts to discuss this important issue and how we improve diagnosis.

What is emerging from other research we are funding is that incidents are being missed and that people may be being poisoned at lower levels for extended periods of time without knowing it. I am optimistic that improved biomarkers will ensure those people are identified sooner.”


Notes to editors

About Carbon Monoxide
Carbon monoxide is a gas formed during the incomplete combustion of any carbon-based or fossil fuel (e.g. gas, coal, oil, wood, charcoal etc) which happens when there is insufficient oxygen caused by poor ventilation.

About the Gas Safety Trust
The Gas Safety Trust, established in 2005 as a registered charitable body, has become the UK’s leading fuel safety charity with the key objectives of further improving fuel safety for the public and industry throughout the United Kingdom and reducing the incidents of death and serious injury from carbon monoxide exposure. The Gas Safety Trust is generously funded by the gift aided profits of CORGI Services Limited.

For further information, visit:;

About the GST CO Portal
The Gas Safety Trust (GST) has created an online carbon monoxide (CO) portal, which is the central repository for data and information relating to CO in the UK. The portal was launched in January 2015. The Portal has three main sections Legislation and Standards, which include information on Regulations, Standards, Guidance and Codes of Practice, Academic References, which is a searchable reference library of academic papers relating to CO and Data and Documents, which contains reports and other general information on CO,

For further information please contact:

Adrian McConnell                   
Trust Manager
Gas Safety Trust

T: 020 7706 5111
M: 07792 219649
Follow us: @GasSafetyTrust

Visit GST’s CO Portal: