2. Carbon Monoxide Ð The Silent Killer
2.1 What is Carbon Monoxide ?
Many people are killed each year, and many more suffer ill health from
Carbon Monoxide (CO) poisoning. CO is an invisible, odourless, tasteless and
extremely toxic gas. It is produced by appliances and vehicles burning fuels,
such as coal, oil, natural/bottled gas, paraffin, wood, petrol, diesel, charcoal
etc. CO is absorbed by red blood cells in the lungs in preference to oxygen
- this results in rapid damage to the heart and brain from oxygen starvation.
High levels of CO in a house can be caused by:
• Incorrectly or poorly installed fuel-burning appliances.
• Blocked or cracked chimneys/flues.
• Blocked vents or draught-proofing which makes areas with fuel burning
appliances or fireplaces airtight.
• Engines of cars, lawnmowers etc. left running in confined spaces.
• Portable paraffin or gas heaters in badly ventilated rooms.
2.2 Symptoms of Carbon Monoxide Poisoning
Most people know that high levels of CO are harmful; however the period of
exposure is also important.
The following symptoms are related to Carbon Monoxide poisoning and
should be discussed with all members of the household.
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Carbon Monoxide Ð The Silent Killer
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