Basic Principles in Occupational Hygiene W201

This course aims to provide an introductory course outlining the broad principles in occupational hygiene as the basis for anticipation, recognition, evaluation and control of hazards that can be encountered in the workplace. 

Who is it for?

This course is for the following: 

  • Health and safety professionals 
  • Occupational health specialists including physicians and nurses 
  • People wanting to enter the field of occupational hygiene  
  • Specialists in subjects such as acoustics, ergonomics, human factors, occupational psychology, work organisation, biosafety, acoustics, engineering, or analytical chemistry who want a broader appreciation of how their role interfaces with other professions over health issues in the workplace 

How is it delivered?

The course typically runs as a taught course over four and a half days (minimum of 36 hours, including practical/demonstration sessions, overnight questions and guided reading).  Some providers may also offer distance and online options.

Learning objectives

On completing this course successfully, students 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 the workplace; 
  • hazard recognition techniques; 
  • sources and potential routes of exposure; 
  • hazard evaluation, exposure assessment and measurement processes; 
  • methods of controlling exposure; 
  • the management of occupational hygiene programmes. 


There will be a 20 short answer question ‘open book’ examination with an allowed time of 60 minutes. 

BOHS is an authorised examining body for the OHTA W201 module as part of the OHTA international training scheme and qualifications framework.


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