how does this toxicity affect the human lung?
An inflammation that starts in the airways leading to the lungs and then spreads into the lungs (tracheobronchial tree). The symptoms appear in the upper chest region (substernal and carinal regions).
Oxygen toxicity
 an inflammation that starts in the airways leading to the lungs and then spreads into the lungs (tracheobronchial tree). The symptoms appear in the upper chest region (substernal and carinal regions). This begins as a mild tickle on inhalation and progresses to frequent coughing.
what happens when you have to much oxygen The result of breathing increased partial pressures of oxygen is hyperoxia, an excess of oxygen in body tissues how does oxygen become toxic? It results rom the harmful effects of breathing molecular oxygen at increased partial pressures. Oxygen toxicity is a concern for underwater divers, those on high concentrations of supplemental oxygen (particularly premature babies), and those undergoing hyperbaric oxygen therapy.
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Oxygen toxicity [SEP] Lungs
Pulmonary toxicity symptoms result from an inflammation that starts in the airways leading to the lungs and then spreads into the lungs (tracheobronchial tree). The symptoms appear in the upper chest region (substernal and carinal regions). This begins as a mild tickle on inhalation and progresses to frequent coughing. If breathing increased partial pressures of oxygen continues, patients experience a mild burning on inhalation along with uncontrollable coughing and occasional shortness of breath (dyspnoea). Physical findings related to pulmonary toxicity have included bubbling sounds heard through a stethoscope (bubbling rales), fever, and increased blood flow to the lining of the nose (hyperaemia of the nasal mucosa).