Silica Dust Control Plan Toolbox Talk

Respirable crystalline silica is generated during many common construction activities, including cutting, grinding, drilling, crushing, chipping, and sawing materials such as concrete, brick, stone, mortar, and masonry. When these fine dust particles become airborne and are inhaled, they can cause serious, irreversible health conditions. A silica dust control plan establishes the procedures, equipment, and responsibilities needed to minimize worker exposure and perform silica-generating tasks safely.

This toolbox talk reviews the purpose of a silica dust control plan, the controls used to reduce exposure, and the responsibilities of everyone on the jobsite.

Why This Matters

• Respirable crystalline silica can cause silicosis, lung cancer, chronic obstructive pulmonary disease (COPD), and kidney disease.
• Silica dust is often invisible to the naked eye and may remain airborne for extended periods.
• Engineering controls are the primary method for reducing worker exposure.
• A written dust control plan helps ensure consistent, safe work practices.
• Following the plan protects workers, supports regulatory compliance, and reduces long-term health risks.

Common Silica Dust Hazards

• Cutting concrete, brick, block, tile, or stone.
• Grinding, sanding, or polishing concrete and masonry surfaces.
• Jackhammering, chipping, or demolition activities.
• Dry sweeping or using compressed air to clean dust.
• Drilling or coring concrete and masonry.
• Crushing or handling silica-containing materials.
• Working near others performing silica-generating tasks.
• Failure of dust control equipment or ventilation systems.

Safety Checklist

Before Work Begins

• Review the silica dust control plan for the assigned task.
• Identify materials and activities that may generate respirable crystalline silica.
• Inspect engineering controls such as water delivery systems, local exhaust ventilation, and dust collection equipment.
• Verify dust collection systems are properly connected, maintained, and functioning.
• Wear the required personal protective equipment (PPE), including respiratory protection when required by the exposure assessment and company procedures.
• Ensure workers assigned to silica-generating tasks have received the required training.

During the Workday

• Use engineering controls continuously while performing silica-generating work.
• Do not disable or bypass dust control equipment.
• Keep unnecessary personnel out of silica exposure areas whenever practical.
• Use approved cleaning methods such as HEPA-filtered vacuums or wet cleaning instead of dry sweeping or compressed air, unless permitted by applicable procedures.
• Report damaged dust control equipment or excessive dust immediately.
• Follow all work practices identified in the silica dust control plan.

Crew Talking Points

• Which tasks today will generate respirable crystalline silica?
• What engineering controls are required for today's work?
• When is respiratory protection required for this task?
• How should silica dust be cleaned up safely?
• Who should be notified if dust control equipment fails?
• Speak up immediately if you notice excessive airborne dust or ineffective dust control measures.

Stop Work If

• Required engineering controls are missing, damaged, or not functioning properly.
• Respiratory protection required for the task is unavailable or cannot be used properly.
• Excessive airborne silica dust cannot be effectively controlled.
• Workers are performing silica-generating tasks without the required controls.
• You are instructed to use work practices that conflict with the silica dust control plan.
• You are unsure how to safely perform a silica-generating task.

Final Reminder

Silica exposure is a serious health hazard, but it can be controlled. Follow the silica dust control plan, use engineering controls for every applicable task, wear required PPE, avoid unsafe cleanup methods, and report problems immediately. Consistently following the dust control plan helps protect everyone on the jobsite from preventable long-term health effects.