Carbon Monoxide Headquarters

Chronic CO Poisoning:

Lethargy, headache, etc. of long duration

Long-standing "illness" intractable to medical solutions

Multiple cases of similar illness at one location

"Illness" that may suddenly improve when leaving site

"Illness" that improves when combustion device(s) is turned off or taken away

Morbidity / mortality of pets

CO alarm sounding, once or repeatedly

Presence of malfunctioning furnace, water heater, etc.

Measurement of CO by fireman, service personnel, etc. at the presumed site of poisoning.