What type of hazard control involves a ventilation hood in a foundry?

The use of a ventilation hood in a foundry exemplifies engineering controls, which are designed to minimize exposure to hazards by modifying the environment or the equipment used. Ventilation systems, including hoods, work to capture and remove hazardous airborne contaminants before they can reach workers. These controls are implemented at the source of the hazard and are essential in creating a safer workplace by reducing the concentration of harmful substances in the air.

By specifically targeting the environmental aspect of the hazard, engineering controls offer a proactive solution rather than relying solely on personal protective equipment or procedural changes. They are crucial in settings like foundries where workers may be exposed to harmful fumes or dust from metals and other materials. Engineering controls are considered one of the most effective methods to ensure ongoing safety and health in industrial environments.