OHTA501 – Measurement of Hazardous Substances

OHTA501 Measurement of Hazardous Substances


The course is a core module for the International Certificate in Occupational Hygiene (ICertOHTA). It is designed to be delivered as a 5-day taught programme including student assessment. The student manual can be used as a free-standing reference for those wishing to study independently.
Materials available for download include the syllabus, student manual, tutor guide, powerpoint slides, overnight and practical exercises.

Course overview


  • Understand the techniques for assessing exposure to hazardous substances in the workplace.
  • Understand how exposure information can be used to assess risk.

You will learn to

  • Describe the general approach to health risk assessment, including the role of atmospheric monitoring.
  • Select appropriate equipment to measure specific airborne contaminants and devise a suitable sampling strategy.
  • Present the results for health risk assessment purposes to comply with relevant legislation.