Pulmonary Oxygen Toxicity (PO) and Central Nervous System Toxicity (CNS)

Abnormally slow breathing is a symptom of oxygen toxicity

Pulmonary oxygen toxicity is caused by divers exposing themselves to elevated partial pressures of oxygen for long periods of time, and is primarily a concern for technical divers who decompress on oxygen. Pulmonary oxygen toxicity causes a burning sensation in the trachea, coughing, shortness of breath, and eventually lung failure.

Cells resist oxygen toxicity because of the semi permeable membrane. This controls the amount of molecules and what molecules enter the cell.

Oxygen toxicity.