Common Sources of Dust

Dust generation varies by industry and the work being done. Common sources include:

• Construction Activities: Cutting, grinding, or drilling materials such as concrete, stone, brick, and wood.
• Manufacturing Processes: Material handling, crushing, and moving materials with conveyors.
• Mining and Quarrying: Excavation and transportation of materials like coal and other minerals.
• Material Storage and Transfer: Loading and unloading bulk materials such as sand, cement, or gravel.

Dust Control Measures

To manage dust hazards, a combination of engineering controls, administrative practices, and personal protective equipment (PPE) is needed.

These are physical methods designed to eliminate or minimize dust at its source:

• Water Suppression Systems: Use water sprays to reduce dust during tasks like drilling or cutting.
• Ventilation Systems: Install local exhaust ventilation (LEV) to capture airborne particles before they spread.
• Enclosures and Barriers: Use barriers to contain dusty activities and prevent dust from spreading.

Adjusting work practices and schedules can help minimize exposure:

• Limit the time workers spend in dusty environments.
• Set up restricted zones around high-dust areas.
• Schedule routine cleaning to prevent dust accumulation.

When engineering and administrative controls are not enough, PPE provides additional protection:

• Provide respirators that meet OSHA's dust protection standards.
• Train workers on the proper use and maintenance of PPE.

Advantages of Dust Control Measures

• Health Protection: Helps prevent respiratory issues and long-term health conditions in workers.
• Improved Visibility: Reduces airborne particles, improving visibility on job sites.
• Fire and Explosion Prevention: Minimizes risks associated with combustible dust.
• Regulatory Compliance: Helps meet OSHA standards, avoiding costly fines.