A Study of Probability Models in Monitoring Environmental Pollution in Nigeria

Table 1

Carbon monoxide poisoning: signs and symptoms [15].

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, tachycardia, dizziness, and nausea within 20 min; death in less than 2 hours.
3,200 ppm (0.32%)	Headache, dizziness, and nausea in 5 to 10 min. 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.