Occupational Hygiene

Workplace Exposure Monitoring

You cannot manage what you have not measured. BBN's occupational hygienists monitor what your workers actually breathe, hear and handle: dusts, fumes, vapours, noise and more, measured over real shifts on real tasks. The result is defensible data on where exposure sits against workplace exposure standards, and a practical, ranked plan for bringing it down. Written so a site manager can act on it, and robust enough to stand up if a regulator or lawyer ever reads it.

What we monitor

Airborne contaminants including respirable and inhalable dust, crystalline silica, wood dust, welding fume, diesel particulate matter, solvents, isocyanates and lead. Noise, from workplace surveys that map your site to personal dosimetry on individual workers. Whatever the hazard, monitoring is task-based and personal: the sampling equipment goes on the worker doing the job, because that is where the exposure standard applies, not at the site boundary or the crib room.

How a monitoring programme runs

It starts with a walkover and a conversation about what your people actually do, because similar exposure groups are defined by task, not job title. We then sample representative workers across full shifts, analyse to Australian Standard methods, and assess results against the workplace exposure standards, adjusted for extended shifts where you run them. One-off assessments answer a specific question. Ongoing programmes track whether your controls keep working as the job changes.

From data to action

Numbers alone do not protect anyone. Every report identifies which workers and tasks drive the exposure, ranks the controls that will reduce it by effectiveness rather than convenience, and sets a re-monitoring point to verify the improvement actually happened. Where results trigger statutory duties, health monitoring, notification, record-keeping, the report says so plainly, with what to do next.

When monitoring is triggered

The common triggers: a new process, substance or plant item; uncertainty about whether exposure exceeds a standard; a worker complaint or health effect; a regulator visit or improvement notice; a contract or principal contractor requirement; and verification after controls change. If you are relying on "it's probably fine" for any airborne contaminant or noise source, that is the trigger.

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Measure it properly, then fix it properly

FAQs

Have Questions? We’re here to help you.
When is exposure monitoring required?
When there is uncertainty about whether exposure exceeds a workplace exposure standard, or when monitoring is needed to check controls are working. Some substances carry explicit monitoring duties.
How is monitoring done?
Personal sampling equipment worn by workers across a representative shift, analysed to Australian Standard methods, and assessed by a qualified occupational hygienist.
How often should we monitor?
It depends on the hazard and your results. Stable, well-controlled exposures need periodic verification. Marginal or variable results need a tighter cycle. Your report sets the interval and why.