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Occupational Hygiene
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What is Occupational Hygiene


Occupational hygienists are involved at the interface of people and their workplaces using science and engineering to prevent ill health caused by the work environment and specialise in the assessment and control of risks to health caused from workplace exposure to hazards.
The term Occupational Hygiene is generally defined as “the art and science dedicated to the Anticipation, Recognition, Evaluation, Communication and Control of environmental stressors in, or arising from, the work place that may result in injury, illness, impairment, or affect the well-being of workers and members of the community”. These stressors are normally divided into the categories Biological, Chemical, Physical, Ergonomic and Psychosocial.
Where there is the potential for injury or illness to arise from the presence of Biological, Chemical, Physical, Ergonomic and Psychosocial hazards, then the PCBU (Person Conducting Business Undertaking/business owner) must determine the level of risk.


Workplace Exposure Monitoring


Safe and Sound Solutions can conduct workplace exposure monitoring and exposure assessments throughout New Zealand. We employ a number of real-time assessment techniques that can allow preliminary assessment against the New Zealand workplace exposure standards without the initial cost of a full exposure survey. This allows controls to be improved prior to workers personal exposure assessment. The latest workplace exposure standards can be found on Worksafe NZ website. We also offer assistance with Personal protective and respiratory protective equipment including respirator fit testing.


Brochure of Services


Download our brochure for more information on how we can assist you with your monitoring needs. It includes information on the following services: Dust and Particulate monitoring, Volatile & Semi-volatile organic compound monitoring, gas and vapour monitoring, weld fume and heavy metal analysis, ventilation assessments, noise monitoring, hazardous substance training and compliance, Biological (mold and spores), surface and material testing, thermal environment assessments, respirator fit testing, vibration monitoring, indoor air quality assessments, respiratory and hearing protection programs, bioaerosol monitoring, confined space entry and monitoring, and biological exposure monitoring.


Safe and Sound Occupational Hygiene Brochure

What we offer
Dust Monitoring
  • Real time and personal exposure monitoring (respirable and inhalable) services for dust and particulate.
  • Real time monitoring allows us to assess compliance and the need for personal monitoring without the initial cost of a full survey. This is achieved using the latest technology from the UK and, coupled with our ventilation assessments can effectively assess your existing controls.
  • Some of the materials we monitor are wood dust, coal dust, synthetic man-made fibres (fibreglass) and silica.
VOC Monitoring
  • Real time semi-volatile and volatile organic compound (VOC) monitoring
  • Latest equipment allows for ppb (part per billion) level detection
  • VOCs are generated by a variety of processes including spray painting, gluing, solvents, petrol, aromatics and other hydrocarbons.
Gas and Vapour
  • Range of monitoring technology that allows for the detection of most gases and vapours.
  • Commonly being carbon monoxide, carbon dioxide, oxygen, hydrogen sulphide, perchloroethylene , benzene and toluene.
  • We can detect over 300 compounds so please enquire if your substances are not listed.
Weld Fume
  • Welding and metal work can produce a range of particulates and metal vapoursnthat are dangerous to health.
  • Real time monitoring of fume for the assessment of local extraction ventilation (LEV) systems
  • Personal exposure monitoring for comparison against the WorkSafe NZ Workplace Exposure Standards.
  • Typically this monitoring can include total inhalable particulates and subsequent trace metal analysis.
Noise Monitoring
  • Occupational and environmental noise assessments.
  • Plant assessments
  • Personal exposure including dosimetry,
  • Maximum daily exposures
  • Hearing protection class assessment
  • Noise maps
  • Engineering control recommendations. 
Ventilation Assessment
  • Assessment of ventilation systems including spray booth, local extraction and total building ventilation.
  • This can include the measurement of capture zones, vapour diffusion patterns and hazardous material clearance times.
Supplies and Equipment

Safe and Sound is proud to support New Zealand business and recommends Tecknosys for Occupational Hygiene equipment and supplies.

“At Tecknosys, we strive to promote a cleaner, healthier and safer environment for ourselves, our kids, and for future generations.”


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