Fire/Arson Investigations : Fire/Arson Investigations
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Re: Kristine Bunch
Posted by: John J. Lentini, CFEI (IP Logged)
Date: August 13, 2012 06:38PM
Pat:
Oftentimes, being a leader in a profession requires being out front and alone. Surely you can identify with that. Anyone can lead from behind.
Nothing worthwhile happens until someone makes it happen. The fact that Doug and his group are exploring this cutting-edge issue should be a reason to congratulate them, not vilify them.
It is not much of a logical leap to read the following paragraph in NFPA 921 and believe that toxicology may well be related to origin.
23.2.1.7* Studies have shown that 60 percent or more fire victims
die from carbon monoxide poisoning. Because of the
transport of CO, most of these people are found outside the
room of origin. Most fires do not produce lethal levels of CO
until the fire becomes ventilation controlled (the exception is
smoldering fires). Thus, victims of carbon monoxide inhalation
are typically found outside the room of origin unless the
fire resulted from a locally under-ventilated or smoldering ignition.
However, during flashover, thermal injury and lack of
oxygen can cause death before substantial concentrations of
COHb are developed. The same can occur if the victim is involved
in a flash fire involving fuel gases or vapors.
John Lentini, CFI, D-ABC
Fire Investigation Consultant
Florida Keys
[www.firescientist.com]
Oftentimes, being a leader in a profession requires being out front and alone. Surely you can identify with that. Anyone can lead from behind.
Nothing worthwhile happens until someone makes it happen. The fact that Doug and his group are exploring this cutting-edge issue should be a reason to congratulate them, not vilify them.
It is not much of a logical leap to read the following paragraph in NFPA 921 and believe that toxicology may well be related to origin.
23.2.1.7* Studies have shown that 60 percent or more fire victims
die from carbon monoxide poisoning. Because of the
transport of CO, most of these people are found outside the
room of origin. Most fires do not produce lethal levels of CO
until the fire becomes ventilation controlled (the exception is
smoldering fires). Thus, victims of carbon monoxide inhalation
are typically found outside the room of origin unless the
fire resulted from a locally under-ventilated or smoldering ignition.
However, during flashover, thermal injury and lack of
oxygen can cause death before substantial concentrations of
COHb are developed. The same can occur if the victim is involved
in a flash fire involving fuel gases or vapors.
John Lentini, CFI, D-ABC
Fire Investigation Consultant
Florida Keys
[www.firescientist.com]
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