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Measurement of hazardous materials

This course aims to provide a thorough understanding of the techniques for assessing exposure to hazardous substances in the workplace. Besides, it gives an understanding of how exposure information can be used to assess risks. After having followed the course, someone is able to describe the general approach to health risk assessment, select appropriate equipment, devise a suitable sampling strategy, and present the results in a form useful for health risk assessment purposes.

The contents of the course somewhat in more detail: the biology and physiology of the most important human organs and systems are explained. Target organs for toxicological substances and the importance of the possible routes of exposure are explained. Basic toxicological concepts (among others: dose response curves) are refreshed. The steps in the risk assessment procedure are explained. Hygiene standards (international) and exposure limits calculations are clarified. Much attention is paid to air sampling theory and practice. Different types of air sampling analysis methods are mentioned, including spectrometry, spectrophotometry, and chromatography. Special attention is paid to the sampling of dusts (air-borne particles), vapors and gases.

The material is appropriate for students, who have basic knowledge of biology and chemistry. For teachers, a guideline is added.

The course consists of ready-to-use material, that can be downloaded free of charge, printed and displayed. No online interaction is necessary.



Original Authors:

Brian Davies and John Henderson

Original affiliation, ownership:

School of Health Sciences, University of Wollongong, Australia Ownership: not strictly indicated, presumably: Occupational Hygiene Training Association (OHTA), Nottingham, UK

Year of publication:


Charge for use or free:

Free of charge


Target group(s):

graduate students

Usefulness for non-OSH-expert professionals:

Not useful for non-OSH-expert professionals in health care or other sectors; or in training

Time demand to complete the lesson or course:

5 days


Is part of the collection of approved training materials of

Downloading of the training materials is free of charge but is subject to the Terms of Use of

Student Manual and course syllabus are provided under Creative Commons, Attribution – NoDerivs: /

The other materials are provided under Creative Commons, Attribution – ShareAlike:

Intellectual property and copyright:

Before downloading, changing, disseminating and/or using the lessons and courses, please look carefully at the conditions given by the authors or owners of the materials related to copyright or creative common conditions or other conditions for the downloading, changing, further dissemination and kind of use of the materials (non-commercial vs. commercial).

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