Which combination of measures is used to manage dust control and coal dust in a mine?

• A. Water sprays or mists, adequate ventilation, housekeeping, dust extraction systems, and training on dust mitigation.
• B. Only increasing ventilation and wearing respirators.
• C. Strictly relying on dust extraction systems without ventilation or training.
• D. Using only soap and water for cleaning tracked equipment.

Answer: (A)

Managing dust in a mine requires a layered, multi-measure approach that tackles dust at the source, controls the air, and ensures workers are trained. Water sprays or mists actively suppress dust as it is generated, reducing the amount that becomes airborne. Adequate ventilation helps dilute and remove remaining airborne dust from the work environment. Housekeeping reduces dust buildup and keeps surfaces and pathways cleaner, so dust isn’t stirred up or spread to new areas. Dust extraction systems capture dust where it’s created, limiting exposure before it can disperse. Training on dust mitigation equips workers with the knowledge to apply controls properly, recognize hazards, and maintain equipment. Together, these measures create a comprehensive dust-management strategy that addresses both generation and exposure, rather than relying on a single method. Other options fall short because they rely on one or two measures only, ignore the need for source control and worker training, or use cleaning as the sole solution, which isn’t sufficient to manage dust effectively in a mine environment.