HSE Workplace Health Expert Committee - Silica Exposure Guidelines

Crystalline Silica Exposure Guidelines Update

The HSE Workplace Health Expert Committee has published updated guidelines for managing crystalline silica exposure in construction work, introducing stricter control measures and lower exposure limits.

New Exposure Limits:

• 8-hour time-weighted average: 0.05 mg/m³ (reduced from 0.1 mg/m³)
• 15-minute short-term exposure: 0.15 mg/m³ (new limit)
• Peak exposure limits: No exposure above 0.3 mg/m³

Enhanced Control Measures:

• Mandatory water suppression for all cutting/grinding operations
• Improved respiratory protective equipment (RPE) requirements
• Regular air monitoring and health surveillance
• Enhanced training for all exposed workers

High-Risk Activities:

Special attention required for:

• Concrete cutting and drilling
• Stone and masonry work
• Demolition activities
• Sandblasting operations

Health Surveillance:

• Baseline health assessments for all at-risk workers
• Annual chest X-rays and lung function tests
• Regular review by occupational health professionals
• Immediate assessment for any respiratory symptoms