10 May – 19 May 2026

OHTA W201 – Basic Principles of Occupational Hygiene

This course is the foundation-level course of the Occupational Hygiene Training Association (OHTA) training scheme. It introduces the core concepts and practical approaches used to anticipate, recognize, evaluate, and control workplace health hazards, forming the basis for further professional development in occupational hygiene.

Learning Outcomes

On completing this course successfully, the student will have a basic understanding of:

• The value of occupational hygiene and the role of the occupational hygienist;
• The range of hazards (physical and chemical) in workplace;
• Hazard recognition techniques;
• Source and potential routes of exposure;
• Hazard of evaluation, exposure assessment and measurement processes;
• Methods of controlling exposure;
• The management of occupational hygiene programs.

Course Format

The course will be run as a taught course over 8.5 days – evening hours – (minimum of 36 hours, including practical demonstration sessions, overnight questions and guided reading).  There will be a 40 MCQ  ‘open book’ examination with an allowed time of 60 minutes.

Course Content

Topic            Title                                                                                       Time Allocation

1                        Introduction                                                                          5%

2                       Human Physiology                                                               15%

3                       Chemical Hazards Recognition                                          20%

4                       Physical Hazards Recognition                                            20%

5                       Hazard Evaluation                                                                 20%

6                       Control of Hazard                                                                  20%