Air Monitoring & Asbestos Fibre Counting NSW

Independent, licensed air monitoring for Class A & Class B removal, clearance certificates, and compliance support across Sydney, Newcastle and the Central Coast.

If you’re removing asbestos, managing a high-risk area, or need a clearance certificate to reoccupy, the outcome hinges on one thing: defensible monitoring, done properly, by an independent assessor. Confluence Environmental provides asbestos air monitoring, fibre counting and reporting aligned with SafeWork NSW expectations and the WHS Regulation — with practical site support that keeps works moving.

For asbestos removal support (planning, clearance and compliance), see our asbestos consulting services.

When air monitoring is required (and when it’s smart)

Air monitoring is typically required or strongly expected when:

• Friable (Class A) asbestos removal is being undertaken, including enclosures and negative pressure units.

• There is a realistic risk of fibre release during non-friable (Class B) removal (poor condition ACMs, power tools, difficult access, or high-traffic areas).

• A clearance is required to reoccupy after removal, enclosure works, or contamination clean-up.

• A principal contractor, client, WHS manager, strata/facilities team, council, insurer, or regulator requests independent verification.

• You’re responding to complaints, worker concerns, or a suspected uncontrolled release event.

What we do

We deliver end-to-end air monitoring and fibre counting that is practical on site, defensible on paper, and accepted by clients, certifiers and removal contractors.

1) Asbestos air monitoring (static & personal)

We provide the full suite of monitoring required through an asbestos job lifecycle:

• Background monitoring (where appropriate) to establish conditions prior to disturbance.

• Control monitoring during removal to verify controls are effective and detect loss of containment early.

• Clearance monitoring following removal and final clean, to confirm the area is suitable for reoccupation.

• Personal (exposure) monitoring to assess worker exposure where required for WHS risk management.

Where clearance is the critical path, we focus on clear communication, correct setup, and tight documentation so your job isn’t delayed by preventable issues.

2) Fibre counting (PCM)

Fibre counting (PCM) quantifies airborne fibre concentrations and is commonly used to support:

• Class A and Class B asbestos works.

• Enclosure performance checks and control verification.

• Complaint investigations and reassurance monitoring.

• WHS exposure assessments and risk reviews.

Results are reported as fibres per millilitre (f/mL), with interpretation provided in plain language so you can make decisions quickly.

3) Asbestos identification (bulk samples)

If you need confirmation of whether a material contains asbestos, we arrange bulk sample analysis with clear documentation suitable for project files, contractors and WHS records. Common materials include fibro sheeting, vinyls/adhesives, lagging, gaskets, ceiling products and fire-rated materials.

What you receive (what makes our deliverables “site-ready”)

Every engagement is structured to stand up to scrutiny:

• Sampling plan, site records and chain of custody.

• Pump calibration / flow records and field notes.

• NATA-accredited laboratory results (where applicable).

• Clear reporting with practical interpretation.

• Clearance documentation/certificates where required, issued to support handover and reoccupation decisions.

Who we support

We work with:

• Licensed asbestos removal contractors (Class A & Class B)

• Builders, demolition contractors and trades

• Facilities teams, strata and property managers

• Schools, healthcare, government and commercial sites

• WHS professionals managing worker concerns and compliance

• Insurers and stakeholders managing contamination events

Why Confluence Environmental

• Independent, licensed asbestos assessor support focused on compliance and momentum.

• Fast response and practical site coordination (we work with your program, not against it).

• Clear reporting, usable documents, and straight answers.

• Coverage across Sydney, Newcastle, the Central Coast and regional NSW.

Areas we service

Sydney and Greater Sydney, Newcastle and Lake Macquarie, the Central Coast, the Hunter Valley, and regional NSW.