Which of the following is considered a common respiratory hazard in construction?

Silica dust is considered a common respiratory hazard in construction due to its widespread use in various materials and activities on job sites. When workers are involved in tasks such as cutting, grinding, drilling, or demolition of materials that contain silica, fine particles are created that can become airborne and be inhaled. Prolonged exposure to respirable crystalline silica can lead to serious health issues, including silicosis, lung cancer, and other respiratory diseases.

In construction environments, the presence of silica is often unavoidable, making it critical for workers to be aware of its risks and implement protective measures such as using proper respiratory protection and ventilation systems. Recognizing silica dust as a significant hazard highlights the importance of training and safety protocols designed to minimize exposure and protect workers' health on job sites.