This course aims to:
Describe the ways in which exposure to hazardous substances arises in the workplace, and to introduce the
methodologies and technologies available to control exposures and thereby reduce risks to health.
On successful completion of this module the student should be able to:
• describe how airborne contaminants are generated by industrial processes, how this impacts on the
control strategy, and how control solutions can thereby be optimised;
• recognise the range of approaches to risk reduction embodied in the hierarchy of control and select
appropriate strategies for implementation;
• describe the meaning of “adequate control”, particularly in relation to personal exposures;
• discuss the importance of design considerations in terms of the workplace, process, and plant, as a
means of reducing occupational exposures;
• describe the principal elements of a local exhaust ventilation system, give examples of typical
installations and know how to carry out the necessary measurements to assess whether a local exhaust
ventilation system is effective and operating to the design specification;
• recognise the limitations of local exhaust hoods and enclosures and the means to optimise their
• describe how personal protective equipment programmes may be used in an effective manner;
• recognise the impact that control measures may have on other workplace hazards and understand the
need to take a holistic approach to the design of control solutions.
The W505 Control of Hazardous Substances course format
Normally run as a 5 day taught course which includes practical/demonstration sessions,
lectures, tutorials, guided reading, overnight questions and examination.
There will be a 40 short answer question “open book” examination with an allowed time of 120 minutes.
1 Hazardous Substances Uses and Processes 15%
2 Workplace Control Principles 15%
3 Process Design and Principles 15%
4 Ventilation Systems and Performance Assessment 35%
5 Personal Protective Equipment 15%
6 Administrative Elements 5%
||This event is approved by OHTA for the international qualifications scheme
||Diamond Environmental Ltd