What is the leading cause of fatalities in confined spaces?

The leading cause of fatalities in confined spaces is hazardous atmospheres. Confined spaces can contain a variety of dangerous environmental conditions, such as low oxygen levels, toxic gases, and flammable vapors. These hazardous atmospheres can lead to serious health risks or even death if proper precautions are not taken. Oxygen deficiency, for example, can quickly incapacitate individuals, while toxic gases can cause immediate harm without any warning signs.

Unlike engulfment, heat stress, or being struck by falling objects, which can also pose serious threats in specific situations, hazardous atmospheres are a more common and pervasive risk in confined space environments. These atmospheric dangers can often be present regardless of the work being performed, making them a critical focus for safety training and monitoring in confined spaces. Understanding the importance of identifying and controlling hazardous atmospheres is essential for anyone working in or around confined spaces to ensure their safety and the safety of their colleagues.