Respirable Crystalline Silica Monitoring Victoria
Protect workers from silica dust exposure with professional respirable crystalline silica monitoring across Melbourne and regional Victoria. Part of our comprehensive silica testing services across Melbourne and regional Victoria. Learn more about our workplace health assessment services. NATA-accredited analysis for construction, manufacturing, and stonemasonry industries.
What Is Respirable Crystalline Silica?
Respirable crystalline silica (RCS) is a hazardous dust generated when materials containing crystalline silica are cut, drilled, ground, or crushed. The respirable fraction – particles small enough to penetrate deep into the lungs – poses serious health risks at concentrations invisible to the naked eye.
Common materials containing crystalline silica include:
- Engineered stone – 90%+ crystalline silica content
- Concrete and cement – 25-70% silica
- Bricks and tiles – 15-30% silica
- Natural stone – Sandstone, granite, quartzite
- Sand and aggregates – High silica content
Victorian Regulatory Requirements
Victoria has strengthened silica protections following the rise of silicosis cases:
- OHS Regulations 2017 (Part 4.3 – Hazardous Substances) – Employer duties
- WorkSafe Victoria Compliance Code – Silica-specific guidance
- Engineered Stone Ban – From July 1, 2024, new banned duties
- Exposure Standard – 0.05 mg/m³ as 8-hour TWA
Employers must conduct air monitoring when there is uncertainty about exposure levels or to verify control effectiveness.
Health Effects of Silica Exposure
Inhalation of respirable crystalline silica causes:
- Silicosis – Progressive, irreversible lung disease
- Lung Cancer – Classified as Group 1 carcinogen
- Chronic Obstructive Pulmonary Disease – Emphysema, chronic bronchitis
- Kidney Disease – Silica-related renal damage
- Autoimmune Conditions – Rheumatoid arthritis, scleroderma
These conditions are entirely preventable through proper exposure monitoring and control.
Our Silica Monitoring Services
Occhygiene provides comprehensive RCS monitoring across Victoria:
- Personal Exposure Sampling – Full-shift breathing zone measurements
- Static Area Monitoring – Identify contamination sources
- Task-Based Assessments – Evaluate specific high-risk activities
- Control Verification – Test LEV and water suppression effectiveness
- Clearance Testing – Post-cleaning and decontamination verification
All analysis is performed by NATA-accredited laboratories using validated methods (XRD or IR spectroscopy).
The Monitoring Process
- Workplace Assessment – Identify exposure sources and representative workers
- Sampler Setup – Fit personal sampling pumps to workers
- Shift Monitoring – Collect respirable dust throughout work activities
- Laboratory Analysis – Quantify crystalline silica concentration
- Results Reporting – Compare against 0.05 mg/m³ exposure standard
Industries Requiring Silica Monitoring
We service Victorian workplaces across multiple sectors:
- Construction – Concrete cutting, drilling, demolition
- Stonemasonry – Benchtop fabrication, installation
- Manufacturing – Brick, tile, and concrete product manufacturing
- Foundries – Metal casting with sand moulds
- Mining and Quarrying – Silica-bearing rock extraction
- Restoration – Heritage building work with stone
Control Measures
Where monitoring indicates exposure above the standard, a hierarchy of controls applies:
- Elimination – Use alternative materials without silica where possible
- Engineering Controls – On-tool extraction, wet methods, LEV
- Administrative Controls – Work rotations, exclusion zones, training
- PPE – Properly fitted respiratory protection (P2 minimum)
For workers using engineered stone, the Victorian ban significantly restricts work with high-silica products.
Health Surveillance Requirements
Under Victorian regulations, workers exposed to silica require health monitoring:
- Pre-employment baseline assessment
- Respiratory health questionnaire
- Lung function testing (spirometry)
- Chest x-ray (read by B-reader or equivalent)
- Periodic reviews (annually or more frequently for high exposure)
Occhygiene can assist with organising health surveillance programs.
Why Choose Occhygiene
- Certified Hygienists – COH and AIOH member professionals
- NATA-Accredited Analysis – Legally defensible results
- Victorian Expertise – Current knowledge of local regulations
- Practical Reports – Clear recommendations based on findings
FAQs About Silica Monitoring
How long does monitoring take?
Personal sampling is conducted over a full work shift (typically 8 hours). Laboratory analysis takes 5-10 business days, with rush options available.
How many workers should be tested?
Representative sampling covers workers with similar exposures. The most exposed workers should always be included. Statistical methods determine sample numbers for group assessments.
What if results exceed the exposure standard?
Immediate action is required including stopping high-exposure work, implementing additional controls, and notifying WorkSafe Victoria if exposure is significant. Health surveillance must be reviewed.
Is on-tool extraction sufficient?
On-tool extraction with H-class extraction significantly reduces exposure but monitoring is needed to verify effectiveness. Water suppression is also highly effective when properly applied.
Book Your Silica Monitoring Assessment
Protect your workers and ensure regulatory compliance with professional RCS monitoring.
Phone: 1300 802 163
Email: sales@anitechgroup.com
Occhygiene – Certified silica monitoring for Victorian workplaces.