Welcome to the OHAO

OHAO Pioneers at 2010 Spring Symposium Some of the OHAO Pioneers ...
l-r: George E. Menzies, Donald A. Brown, Ernest Mastromatteo, Hugh M. Nelson, Om Malik, Gyan S. Rajhans

Mission Accomplished! Three members of the Historical Overview Task Force at the 2010 Spring Symposium
l-r: Don Brown, Neil Murray and David Halton

Hugh Nelson Award The Hugh Nelson Award for 2010 was presented at the Spring Symposium to Mr. Paul Bozek of the University of Toronto Dalla Lana School of Public Health
l-r: Hugh Nelson, Susan Ing, Paul Bozek

Alberto Behar HonouredAlberto Behar congratulated by Jason Hoffman at the 2010 Spring Symposium on the conclusion of his very successful term as OHAO president
l-r: Alberto Behar, Jason Hoffman

Canadian Contingent at the 8th International Congress of the IOHA, 2010 Jason Hoffman (OHAO Member, Arcelormittal) Lydia Renton (OHAO Member, WESA Hygiene Director), Luc Hamelin, (IOHA President), Chun-Yip Hon (UBC PhD candidate), and Chuck and Margerite Pilger (OHAO Members, ALARA)

Fall Symposium Lydia Renton Presenting on Occupational Hygiene in Emerging Countries

Latest News

OHAO MOL OHS Strategy Discussion Paper Response

The Ontario Ministry of Labour, along with the Prevention Council, has invited stakeholders to provide input into t...

10-05-2013Read more

ESA Air Quality Reporting Forms Feedback

It has come to the attention of OHAO that the Electrical Safety Authority (ESA) is revising their Air Quality Reporting ...

23-04-2013Read more

Proposed Changes to Occupational Exposure Limits

The Ministry of Labour has begun consultation on proposed changes to the Occupational Exposure Limits. For spec...

22-01-2013Read more

Welcome to the OHAO

The Occupational Hygiene Association of Ontario (OHAO) represents occupational hygienists and other people interested in health and safety. While the activities of the Association are primarily within Ontario, membership is not limited to those within the province.

Through OHAO, members communicate with each other on a regular basis to increase awareness and learning.

The Association is involved in numerous workshops, seminars and conferences throughout the year. OHAO also co-sponsors conferences and symposia on occupational health topics with other groups with an interest in health and safety. In addition, OHAO schedules an annual vendor exhibition of equipment and related services to ensure members are fully aware of latest developments.

The OHAO newsletter, The OH Forum, mailed quarterly to all members, contains current information on occupational hygiene issues along with a list of workshops, seminars, conferences, and Association activities.

Members represent the Association on advisory boards and standard setting bodies.

OHAO also promotes occupational hygiene through its awards programs.

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