The New Zealand Occupational Hygiene Society is a network of occupational hygiene professionals who further the practice, professionalism and recognition of the industry in New Zealand. The NZOHS was officially launched in 1994. At present the Society's membership is made up of Professional Occupational Hygienists either working for large companies, private consultants, or for Worksafe NZ.

Consultation on Respirable Quartz/Respirable Crystalline Silica

Worksafe New Zealand is consulting on a Workplace Exposure Standard (WES) for respirable quartz.

Worksafe proposes to adopt an 8 hour time weighted average (WES-TWA) of 0.025mg/m3 (measured as respirable fraction).

A review has been carried out to recommend a proposed WES value. This review was carried out by Toxicology Excellence for Risk Assessment (TERA) in the United States. This review is attached.

The NZOHS will provide a group submission. Individual submissions can be completed and sent to Worksafe New Zealand, more information can be found on their website.

Draft Regulations for the Health and Safety at Work Act

The NZOHS has reviewed and commented on the draft regulations which support the new Health and Safety at Work Act. The draft regulations include:

1) General Risk and Workplace Management
2) Major Hazard Facilities
3) Asbestos

All three documents can be viewed here.

NZOHS April Newsletter

NZOHS has issued its second newsletter for the year, find out the latest here. 

Occupational Noise Assessment Course, Auckland, 10-14 August 2015

The NZOHS is pleased to announce that this course is now full. More Occupational Hygiene courses will be run in the future, keep checking our website for dates.

NZOHS January 2015 Newsletter

The NZOHS has published its first newsletter for 2015. Click on the file to download the newsletter and find out what has been happening in the world of occupational hygiene both in New Zealand and abroad. 

BOHS Report Writing Guide for Occupational Hygienists

Occupational hygiene is concerned with the Anticipation, Recognition, Evaluation and Control of health hazards in the workplace; at each of these stages, effective communication is essential.


The production of formal written reports is one of the key methods of communicating occupational hygiene information. This guidance will help occupational hygienists produce clear and effective reports to achieve the aims and objectives for which they have been produced. The aims of the guidance are to:

NZOHS supports IOSH 'No Time To Lose' Campaign

Cancer caused by what people do at work is nothing new. One of the first official cases of an occupational cancer was identified in the eighteenth century. IOSH’s No Time to Lose campaign aims to get carcinogenic exposure issues more widely understood and help businesses take action. The campaign is working to:

Consultation Workplace Exposure Standard for Diesel Particulate Matter

Worksafe New Zealand is consulting on a Workplace Exposure Standard (WES) for diesel particulate matter (DPM).

New Health and Safety Association Launched

A new umbrella association for workplace health and safety professions in New Zealand has been established. The Health and Safety Association of New Zealand (HASANZ) was launched on 10 September 2014 in Auckland by George Adams, Chair of the Independent Forestry Safety Review and of the Occupational Health Advisory Group set up by WorkSafe NZ.

HASANZ aims to raise professional standards across the occupational health and safety sector to provide healthier and safer workplaces for New Zealanders.