What is a potential consequence of exposure to nitrogen dioxide (NO2)?

Exposure to nitrogen dioxide (NO2) can lead to various serious health issues, especially affecting the respiratory system. The correct answer highlights two significant consequences: suffocation and pulmonary edema.

Suffocation refers to the lack of adequate oxygen in the body, which can occur due to the damaging effects of NO2 on the airways and lung tissues. This gas irritates the respiratory tract, making it difficult for lungs to function properly and for oxygen to be absorbed effectively, potentially leading to respiratory failure.

Pulmonary edema is a condition where fluid accumulates in the lungs, often as a result of inflammation caused by exposure to harmful substances like NO2. This inflammation can interfere with gas exchange and can make breathing extremely difficult, further compounding the risk of suffocation.

Understanding the specific consequences of inhaling nitrogen dioxide emphasizes the need for adequate protective measures when working in environments where this pollutant might exist, highlighting the importance of personal protective equipment and proper ventilation in reducing exposure risks.