Control Measures for Dust Toolbox Talk

Dust is one of the most common health hazards on a construction site. It can come from cutting, grinding, drilling, sanding, sweeping, demolition, earthwork, and material handling. Some dust is just a nuisance, but other dust can contain silica, lead, asbestos, wood particles, drywall compound, or other harmful materials.

This talk focuses on practical ways to control dust before it spreads across the jobsite. The goal is to reduce exposure at the source, protect nearby workers, and make sure cleanup is done without kicking dust back into the air.

Why This Matters

• Breathing dust can irritate the throat, eyes, and lungs and can trigger coughing, wheezing, or shortness of breath.
• Some dust can cause serious long-term health problems, including lung disease, asthma, cancer, or permanent breathing damage.
• Dust does not stay where it starts. Wind, fans, equipment, foot traffic, and vehicles can carry it into other work areas.
• Heavy dust can reduce visibility and increase the chance of slips, trips, struck-by incidents, and equipment accidents.
• Respirators help, but they should not be the only control when dust can be reduced at the source.

Common Hazards

• Concrete, brick, block, stone, or mortar dust from saw cutting, grinding, drilling, chipping, or jackhammering.
• Drywall dust from sanding joints, cutting panels, mixing compound, or cleanup after finishing work.
• Wood dust from cutting, routing, sanding, or sweeping framing lumber, plywood, cabinets, or treated wood.
• Dust from demolition, especially in older buildings where materials may contain lead, asbestos, mold, or unknown contaminants.
• Road dust and soil dust kicked up by trucks, loaders, forklifts, skid steers, or high foot traffic.
• Dust from dumping, mixing, or transferring powders such as cement, grout, mortar, plaster, or fireproofing material.
• Dry sweeping or using compressed air to clean dusty surfaces, clothing, tools, or equipment.
• Outdoor dust blowing into occupied areas, open trenches, stair towers, public walkways, or another trade’s work zone.

Safety Checklist

Before Work Begins

• Identify the task, material, and amount of dust likely to be created.
• Check whether the material could contain silica, lead, asbestos, mold, treated wood, or other harmful substances.
• Choose dust controls before starting, such as wet methods, tool-mounted vacuum systems, local exhaust, or barriers.
• Use tools with built-in water feeds or shrouds connected to HEPA-filtered dust collection when available.
• Set up plastic sheeting, temporary walls, signs, or barricades to keep dust from spreading to other crews.
• Confirm that vacuums, hoses, filters, water supply, and dust collection equipment are in good condition.
• Make sure the correct respirator and filters are available when required, and confirm workers are trained and fit-tested.

During Work

• Keep dust down at the source instead of letting it spread and trying to clean it up later.
• Use water to suppress dust when cutting, drilling, grinding, or breaking materials, unless it creates another hazard.
• Keep vacuum hoses connected, shrouds tight to the work surface, and filters cleaned or changed as needed.
• Do not dry sweep dusty debris. Use wet cleanup methods or a HEPA-filtered vacuum.
• Do not use compressed air to blow dust off floors, ledges, tools, equipment, or clothing.
• Position fans and ventilation so dust moves away from workers and does not blow into another work area.
• Keep material piles, soil, and haul roads damp or covered when wind or traffic can create dust clouds.
• Stop and adjust controls if visible dust increases, visibility drops, or workers start coughing or having trouble breathing.

Crew Talking Points

• What tasks today will create the most dust?
• What material are we disturbing, and do we know what is in it?
• Are we using water, vacuum collection, barriers, or ventilation before relying on respirators?
• Where could dust travel if the wind changes, a door opens, or a fan is moved?
• How are we cleaning up without dry sweeping or blowing dust into the air?
• Who is responsible for checking dust collection equipment, filters, and hoses during the task?
• Speak up if a control is not working, dust is spreading, or you have concerns about the exposure.

Stop Work If

• Dust clouds are visible and controls are not reducing the exposure.
• Dust is spreading into occupied areas, public spaces, air intakes, stair towers, or another crew’s work zone.
• A vacuum, shroud, water feed, hose, filter, or ventilation system is missing, clogged, damaged, or not working.
• Workers are coughing, wheezing, having trouble breathing, or reporting eye, nose, or throat irritation.
• Unknown materials are disturbed and may contain asbestos, lead, mold, silica, or other hazardous substances.
• Cleanup requires dry sweeping or compressed air because proper cleanup equipment is not available.

Final Reminder

Dust control starts before the first cut, grind, sweep, or load is moved. Control dust at the source, keep it out of the air, and stop work when the controls are not keeping up.