• The next IOHA Board Meeting will take place on the 8th of September 2019 in Bali!
  • Also join the 4th IIHA CONNECT Conference in Bali taking place from 9-11 September 2019!

International OEL Issues and Activities

Occupational Exposure Limits (OELs) have been established for airborne workplace chemicals by multiple regulatory and authoritative organisations around the world for well over 60 years. With the changing regulatory arena, shifting centers of manufacturing growth, and move towards a more global view on occupational hygiene issues, it is important for the occupational hygiene profession to understand the current and growing issues impacting the continued viability of OELs in our professional practice.

IOHA has created this sectionto provide information on the issues and stimulate the discussion of approaches and solutions to the issues before the profession. If you wish to add information to this space, please contact, putting “Query from IOHA website” in the header of your email.

AIHA sponsored an OEL webinar titled Welcome to The New Era of Global Exposure Limit Setting Processes.

2010 IOHA Rome Conference – Workshop Presentations
At the IOHA 2010 Conference in Rome, a workshop was held which discussed the Exposure Setting Processes around the world, and the challenges and opportunities which lie ahead.

The presentations from this workshop are listed below and represent the views of the authors, and do not necessarily represent the views of IOHA. All correspondence regarding the presentations should be directed to the specific authors.

1. Exposure Setting Processes – An International Challenge

2. History of Occupational Exposure Limits (Susan Ripple, The Dow Chemical Company, USA)

3. OEL Setting Processes – North America (Susan Ripple, The Dow Chemical Company, USA)

4. OELs Setting Processes – European Continent (Michel Guillemin, University of Lausanne Switzerland)

5. The Inhalation DNEL Challenge (Jürgen Pauluhn, Bayer HealthCare, Germany)

6. OELs in China and India (Jas Singh, Golder Associates, USA)

7. OELs in Latin America (José Pedro Dias Jr, ABHO, Brazil)

8. Exposure Limits – Global Challenges (Chris Laszcz-Davis, The Environmental Quality Organization, USA)


Hierarchy of OELs

2009 PCIH Presentation
2009 OEL Green Paper August 2009