Occupational Hygienists in Wellington, New Zealand

Professionals specialising in airborne contaminant monitoring and exposure assessment.

Occupational hygienists assess workplace exposure to hazardous substances, including airborne asbestos fibres. In the context of asbestos work, they conduct air monitoring during removal operations, perform background and clearance air sampling, and provide independent exposure assessments to ensure fibre levels remain below the workplace exposure standard of 0.1 fibres/mL. This directory lists occupational hygienists providing asbestos-related services across Australia.

All licensed asbestos removal requires a licence from WorkSafe: Class A permits removal of any quantity of friable and non-friable asbestos. Nominated supervisors need at least three years of experience including a minimum of 600 days removing friable asbestos. The PCBU must have a certified safety management system, and an independent assessor must do air monitoring and issue clearance certificates. Work in Wellington is regulated by WorkSafe NZ - Asbestos.

Check they hold AIOH membership (Australia) or NZOHS membership (New Zealand) and that their lab is accredited for the fibre counting method they use. Ask what their clearance inspection process looks like.

For more information, see WorkSafe NZ - Asbestos.

Frequently Asked Questions

When is air monitoring required during asbestos removal in New Zealand?

For Class A (friable) removal, an independent assessor must carry out air monitoring and issue clearance certificates under the Health and Safety at Work (Asbestos) Regulations 2016. Monitoring confirms airborne fibre levels are controlled before an area is reoccupied. WorkSafe NZ sets out when monitoring and clearance are required.

What qualifications should an occupational hygienist hold in New Zealand?

Look for membership of a recognised body such as the New Zealand Occupational Hygiene Society (NZOHS) and a laboratory accredited by IANZ for the analysis method used. On Class A work the assessor doing air monitoring and clearance must be independent of the removalist.

What does an occupational hygienist do in asbestos work?

Their main job is measuring airborne asbestos fibre levels to make sure workers and nearby occupants are not being exposed beyond safe limits. The workplace exposure standard in both Australia and New Zealand is 0.1 fibres per millilitre of air, averaged over eight hours. A hygienist will run air monitoring before, during, and after removal work, then issue a clearance certificate once the area is safe to reoccupy. They also review the removalist's control measures and advise on safe work procedures.

When is air monitoring required during asbestos removal?

It is mandatory for all friable (Class A) removal in Australia and for all licensed removal work in New Zealand. For non-friable (Class B) work in Australia, it is required when a risk assessment suggests fibre levels could exceed the exposure standard. You also need monitoring before an enclosure is pulled down and before a clearance certificate can be signed off. The person doing the monitoring must be competent in the methods, which usually means a qualified hygienist using NATA-accredited (Australia) or IANZ-accredited (New Zealand) procedures.

What qualifications should an occupational hygienist hold?

In Australia, look for membership of the Australian Institute of Occupational Hygienists (AIOH). Full members have a relevant degree and demonstrated competence. Many also hold Certified Occupational Hygienist (COH) status through the AIOH certification scheme. In New Zealand, the NZ Occupational Hygiene Society (NZOHS) keeps a similar register. For asbestos air monitoring specifically, the hygienist or their lab should hold NATA accreditation (Australia) or IANZ accreditation (New Zealand) for the fibre counting methods they use.

New ZealandWellingtonOccupational Hygienists

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Chemsafety Limited - Wellington

Avalon, Wellington

Asbestos ConsultantsOccupational Hygienists+2 moreLocal

Chemsafety Limited provides asbestos removal, hazardous substances management, and occupational hygiene services to identify, quantify and mitigate health hazards in workplaces throughout New Zealand.

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ProRem Property Remediation

Carterton, Wellington

Asbestos ConsultantsOccupational Hygienists+1 moreLocal

ProRem is a New Zealand-owned property remediation specialist providing safe, certified solutions for asbestos removal, environmental decontamination, and property damage restoration across residential, commercial, and industrial sectors.

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