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Physiological Effects of Carbon Monoxide (CO)
Parts per Million------------ Time of exposure------------Response
50 ----------------------------------------------------Threshold limit, no apparent toxic symptoms
100 ------------------------Several hours------------- No symptoms for long periods
200 -------------------------2-3 hours ----------------Possible headache
400 --------------------------1-2 hours -----------------Frontal headache and nausea
800 --------------------------45 minutes--------------- Headache, dizziness and nausea
800 ---------------------------2 hours ------------------ Collapse and possible unconsciousness
1600 --------------------------20 minutes ----------------Headache, dizziness and nausea
1600 ---------------------------2 hours -------------------Collapse, unconsciousness, possible death
3200 ---------------------------5-10 minutes ------------- Headache and dizziness
3200 ---------------------------10-15 minutes --------------Unconsciousness and possible death
6400 ----------------------------1-2 minutes ----------------Headache and dizziness
6400 ----------------------------0-15 minutes ---------------Unconsciousness and possible death
12800 --------------------------------------------------------Immediate Unconsciousness
12800 ----------------------------1-3 minutes --------------Danger of death
Carbon Monoxide - Carbon Monoxide Poisoning
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