appear to be turning around. the person may have trouble thinking clearly.
carbon monoxide is measured in parts per million in a normal atmosphere. breathing in two hundred parts per million of carbon monoxide will cause the first signs of poisoning. it will result in head pain, stomach problems and a feeling of tiredness after two to three hours.
carbon monoxide does not always cause death. but it can cause many medical problems. breathing low amounts of the gas for long periods of time can lead to permanent damage in the heart, lungs or brain.
medical experts say small amounts of carbon monoxide over a long period of time can greatly harm an 