Final answer:
The most common hazard to humans in a building fire is smoke inhalation. When a fire erupts, it produces toxic smoke filled with gases, chemicals, and particulate matter.
Step-by-step explanation:
The most common hazard to humans in a building fire is smoke inhalation. When a fire erupts, it produces toxic smoke filled with gases, chemicals, and particulate matter. Breathing in this smoke can lead to serious respiratory problems, including suffocation and damage to the lungs. In addition, the heat and flames of the fire can cause burns and injuries to the human body.
Smoke inhalation can be especially dangerous in enclosed spaces where there is limited ventilation. The smoke can quickly fill the area, making it difficult to breathe and causing disorientation and panic. It is important for individuals to evacuate the building as quickly as possible and to stay low to the ground where the air is less smoky and toxic.
Carbon monoxide is another hazardous gas that can be present in a building fire. It is odorless, colorless, and can be deadly when inhaled in high concentrations. Carbon monoxide binds to the hemoglobin in our blood, reducing its ability to carry oxygen to the body's organs and tissues.