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Topic

Silica and construction dust

Cut, drill and grind wet or with extraction, fit-test masks, never sweep dry.

Key points

  • Cutting, drilling, grinding or breaking concrete, brick, stone and tile makes silica dust. It causes silicosis, which cannot be cured.
  • Singapore's long-term exposure limit for respirable quartz is 0.1 mg/m3. Cristobalite and tridymite are lower, at 0.05 mg/m3.
  • Stop the dust at the tool with water or on-tool extraction. A fitted respirator is the last line, not the first.
  • Workers exposed to silica need a medical exam within 3 months of starting and every 3 years after, by a designated workplace doctor.
Know itSilica and construction dust: what supervisors need to knowSilica dust control in Singapore: exposure limits, water and on-tool extraction, respirators and fit testing, clean-up, air monitoring and medical exams.Read the guide → Check itSilica dust control checklistSilica dust checklist: dusty tasks listed, water suppression and on-tool extraction working, fit-tested respirators, wet clean-up, air tests and medical exams.Open the checklist → Brief itToolbox talk: silica dustFive-minute silica dust toolbox talk: why the dust you cannot see is the danger, cut wet or with extraction, wear a fitted mask, and never sweep dry.Use the toolbox talk →

All silica and construction dust resources

Guide

Silica and construction dust: what supervisors need to know

Nurul Hidayah Binte Azman · Oct 20, 2026
Checklist

Silica dust control checklist

Nurul Hidayah Binte Azman · Oct 20, 2026
Toolbox talk

Toolbox talk: silica dust

Nurul Hidayah Binte Azman · Oct 20, 2026

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