Official web site for City of Corpus Christi, Texas
Stages of Carbon Monoxide Poisoning
|
*PPM |
Warning Signs |
Time |
|
50 |
No effect |
8 hours |
|
200 |
Possible mild frontal headache |
2 to 3 hours |
|
400 |
Frontal headache and nausea |
1 to 2 hours |
|
400 |
Occipital headache and nausea |
2.5 to 3.5 hours |
|
800 |
Headache, dizziness and nausea |
20 minutes |
|
1600 |
Collapse, possible death |
2 hours |
|
3200 |
Headache, dizziness |
5 to 10 minutes |
|
3200 |
Unconscious and in danger |
10 to 15 minutes |
|
128,000 |
Unconscious almost instantly, death imminent |
1 to 3 minutes |
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These values are approximate and vary as to the individual's state of health and physical activities.
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*ppm - parts per million - Gas concentration volume measurement
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