In FIRE SMOKE
“Where there is smoke,
there may be cyanide”2
Around 154 000 fires between April 2019 and March 2020 in England with 243 fire-related-fatalities3
Smoke inhalation is a well-established cause of injury and death in victims of fires.4
Hydrogen Cyanide (HCN) is a silent killer present in fire smoke5
- HCN and Carbon Monoxide (CO) are two of the main noxious gases involved in a fire smoke.4
- HCN is about 35 times more toxic than CO.6
- HCN gas is a by-product of thermal degradation of various nitrogen-containing natural and synthetic materials.4,5
- Example of material:4,5
Synthetic materials
Plastic
Resins
Other Polymers
Natural materials
Wool
Silk
Cotton
Paper
*CBRN: Chemical Biological Radiological Nuclear
Bibliography
1 - Reade M. et al; Review article: management of cyanide poisoning
2 - Koschel MJ. Where there’s smoke, there may be cyanide. Am J Nurs. 2002; 102:39-42
3 - Fire statistics: England. April 2019 to March 2020. Home Office Statistical Bulletin 22/20
4 - Grabowska T. et al., Prevalence of hydrogen cyanide and carboxyhaemoglobin in victims of smoke inhalation during enclosed-space fires: a combined toxicological risk. Clinical Toxicology; 2012;50(8):759-763
5 - Alcorta R., Smoke inhalation & acute cyanide poisoning, JEMS communications 2004; 6-16
6 - Tuovinen H, Blomqvist P. Modelling of Hydrogen Cyanide Formation in Room Fires. Brandforsk project 321011. SP Report. 2003:10. SP SwedishNational Testing Research Institute: Borås, Sweden.