I.C.Castledine Limited

The concentration levels of Carbon Monoxide.

 

 

Concentration Symptoms 35 ppm (0.0035%);

Headache and dizziness within six to eight hours of constant exposure.

100 ppm (0.01%);

Slight headache in two to three hours.

200 ppm (0.02%);

Slight headache within two to three hours; loss of judgment.

400 ppm(0.04%);

Frontal headache within one to two hours.

800 ppm (0.08%);

Dizziness, nausea, and convulsions within 45 min; insensible within 2 hours.

1,600 ppm (0.16%);

Headache, increased heart rate, dizziness, and nausea within 20 min; death in less than 2 hours.

3,200 ppm (0.32%);

Headache, dizziness and nausea in five to ten minutes. Death within 30 minutes.

6,400 ppm (0.64%);

Headache and dizziness in one to two minutes. Convulsions, respiratory arrest, and death in less than 20 minutes.

12,800 ppm (1.28%);

Unconsciousness after 2–3 breaths. Death in less than three minutes.

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