Which type of hazard involves the displacement of oxygen?

• A. Chemical hazard
• B. Asphyxiation hazard
• C. Radiological hazard
• D. Psychological hazard

Answer: (B)

Asphyxiation hazard specifically involves situations where the oxygen concentration in the air is reduced to levels that can be dangerous for human health. This type of hazard can occur in environments where there is a displacement of oxygen by other gases, such as in confined spaces or during certain chemical reactions. When oxygen levels drop below a safe threshold, individuals can experience symptoms of asphyxiation, leading to serious health risks or even death if not addressed promptly.

In contrast, chemical hazards typically refer to substances that pose a risk due to their corrosive, toxic, or reactive nature, but not necessarily due to oxygen displacement. Radiological hazards are associated with exposure to radioactive materials, which do not directly involve the reduction of oxygen. Psychological hazards relate to stress, mental health, or emotional well-being effects due to workplace conditions but are not physical hazards related to oxygen levels. Therefore, asphyxiation hazard is the most accurate and relevant term for the described situation of oxygen displacement.