Common Mistakes in Silica Dust Control on Construction Sites
Silica dust is one of the most significant occupational hazards on construction sites. Even with awareness, mistakes in dust control are common—and they put workers’ health at serious risk.
- Relying Only on PPE
Personal protective equipment (PPE) like respirators is important, but it should never be the sole control. Engineering and administrative controls are far more effective at reducing exposure at the source.
- Inadequate Wet Methods or Ventilation
- Using water suppression incorrectly or not at all during cutting, grinding, or drilling
- Poorly positioned extraction systems that fail to capture dust
- Not Identifying High-Risk Tasks
Failing to recognise which activities generate respirable crystalline silica can leave workers unprotected and overexposed.
- Skipping Air Monitoring
Without proper air monitoring, you cannot know if dust levels are above the Workplace Exposure Standard (0.05 mg/m³). Assumptions are not a substitute for data.
- Poor Training and Awareness
Workers unaware of silica risks may:
- Remove PPE incorrectly
- Use unsafe work practices
- Spread dust beyond the work area
- Insufficient Documentation
Lack of records for SWMS, control measures, or monitoring results can lead to regulatory non-compliance and make it difficult to prove safety measures were in place.
Key Takeaway
Effective silica dust control requires planning, monitoring, and layered controls, not just PPE. Engaging an occupational hygienist early helps identify high-risk activities, implement effective controls, and ensure compliance—protecting both workers and your project.