There are different ways to become an occupational hygienist.

A typical study pattern is often a B.Sc. in Science and a M.Sc. in Occupational Hygiene.

This is not always the case, but the knowledge you have is the most important factor.

The attached list are basic fields of knowledge that an occupational hygienist should know about.>

Occupational Hygiene Science

  • Air Sampling & Instrumentation
  • Analytical Chemistry
  • Basic Science
  • Biohazards
  • Biostatistics & Epidemiology
  • Community Exposure
  • Engineering Controls/Ventilation
  • Ergonomics
  • Health Risk Analysis & Hazard Communication
  • IH Program Management
  • Noise
  • Non-Engineering Controls
  • Radiation – Ionizing and Non-ionizing
  • Thermal Stressors
  • Toxicology
  • Work Environments & Industrial Processes

OHTA was formed to promote better standards of occupational hygiene practice throughout the world.  They develop training materials and make them freely available for use by students and training providers.  They also promote an international qualifications framework so that all hygienists are trained to a consistent, high standard, recognized in all participating countries.

IOHA supports OHTA and are working together to provide formal recognition of the qualifications delivered by the OHTA training programmes.

OHTA Training Materials
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OHTA Training Events
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OHTA Approved Training Providers
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The European Network Education and Training in Occupational Safety and Health (ENETOSH) offers a platform for systematic knowledge-sharing on issues concerning education and training in occupational safety and health.

The fundamental aim of ENETOSH is to mainstream occupational safety and health (OSH) into education and training. Our assumption is that mainstreaming OSH into education and training will help boost the overall quality of education and prepares the ground for the development of a culture of prevention.

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CCOHS – Canadian Center for Occupational Health and Safety

CCOHS has an established history of collaborating with many Canadian and international partners. Projects with leading workplace health and safety organizations in Canada have expanded the quality and quantity of resources and programs available to workers and employers across the country.

Work with international partners, including the World Health Organization (WHO) and the European Union, has helped to advance health and safety in the workplace on a global level. These partnerships, in addition to its position as one of the Collaborating Centres of the International Labour Organziation (ILO) and WHO, allow CCOHS to provide workers with information from international sources and to share our own knowledge and expertise in return.

AIHA – American Industrial Hygiene Association


Affordable, quality education for busy IH and OEHS professionals

Save time, money, and earn contact hours towards maintaining your certification with AIHA eLearning. You’ll receive AIHA’s quality technical content with the convenience of learning when you’re on the go.

There are several formats and price points for every learning style and budget!





Updated on 22 February 2017

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