Chemicals
5-minute talk

Toolbox Talk: Silica Dust

A ready-to-read toolbox talk on where silica dust comes from, why it causes lung disease and how water, vacuums and respirators keep it out of your lungs.

Before you start

Bring a saw or grinder with a water feed or vacuum shroud, or show a photo, so the crew can see the controls.

Read this to your crew

Cutting, grinding or drilling concrete, brick, block, stone and tile releases fine silica dust. The particles are small enough to reach deep into the lungs, where they cause scarring called silicosis, along with lung cancer and kidney disease.

Today we will talk about keeping that dust out of the air and out of your lungs.

Key points

  1. Know the sources. Concrete, masonry, stone, engineered stone, sand and tile all contain silica. Cutting, grinding, drilling, chipping and sweeping them makes dust.
  2. Control dust at the source. Use water feed or a vacuum dust collector with a proper filter on saws, grinders and drills.
  3. No dry sweeping or blowing. Clean up with a HEPA vacuum or wet methods, not a broom or compressed air.
  4. Wear the respirator when required. Some tasks need a respirator even with controls. Make sure it fits and seals.
  5. Keep dust off your clothes. Do not take dust home. Change or clean off before getting in your vehicle.

Ask the crew

  • Which tasks on this job create the most dust?
  • Is the water feed or vacuum working on every tool today?
  • Who here needs a respirator for their task?

Picture this

A laborer cuts concrete pavers dry with a cut-off saw because the water hose is too short to reach. A cloud of dust hangs over the area all afternoon, and three other workers breathe it in. A longer hose would have kept the dust down.

Print this page to use the sign-in sheet, or skip the paper and record attendance digitally in SafetyIQ.

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Company / crew
Signature

Talk leader: ______________ Date: ______________ Site: ______________

At a glance

Time
5 minutes
Best for
Construction, concrete and masonry, stone fabrication, foundries
Standards
OSHA 29 CFR 1926.1153 (construction) and 1910.1053 (general industry)
Pairs with
National Safety Month

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