OHTA507 – Health Effects of Hazardous Substances

OHTA507 - Health Effect 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


  • Introduce you to toxicology, physiology and epidemiology.
  • Identify chemical substances hazardous to health at work and their harmful effects on target organs.

You will learn to

  • Define commonly used toxicological terms.
  • Know the main routes by which hazardous substances can enter the body, and the factors which influence their absorption, distribution, storage and elimination.
  • Know where to find information on hazardous substances and processes.
  • Understand the principal target organs affected by hazardous substances at work, and the factors influencing harm.
  • Know the main routes of exposure and toxic and health effects for hazardous substances commonly encountered in the workplace.
  • Interpret results from epidemiological studies.