What is the first action in the hierarchy to prevent dust explosions?

The first action in the hierarchy to prevent dust explosions is to eliminate the risk. This approach is foundational in process safety management, as it addresses the hazard at its source by removing the factors or conditions that can lead to an explosive atmosphere. By eliminating the risk, organizations can significantly reduce the likelihood of a dust explosion occurring, which is crucial for ensuring the safety of workers and the facility.

The priority of this action reflects the principle of risk reduction where, if a hazard can be completely removed, it negates the possibility of an incident associated with that hazard. Other actions, such as implementing controls, providing education, and regular inspections, are important components of a comprehensive safety strategy but come into play after the risk has been assessed and eliminated where possible.