Which method is used to control excessive dust during mining operations?

The use of water or other effective methods is widely recognized as one of the most effective ways to control excessive dust during mining operations. Applying water helps to settle dust particles on surfaces, preventing them from becoming airborne. This is especially crucial in mining environments, where dust can pose health risks to workers and negatively impact equipment and visibility.

In addition to water, other methods like using dust suppressants or implementing misting systems can effectively minimize dust generation. These methods work by either trapping dust particles or preventing them from being released into the air during various mining activities.

In contrast, increasing air ventilation can help dilute airborne dust but does not directly reduce the dust at the source. Covering the area with tar may not be practical in many scenarios due to environmental concerns and operational limitations. Limiting operational hours might reduce dust exposure temporarily but does not effectively address the issue during working periods. Thus, using water or other effective dust suppression techniques remains the most direct and efficient approach to managing dust in mining operations.