The hierarchy of controls
In the not-too-distant past, it was common for Occupational Safety and Health professionals to consider the hierarchy of controls according to the following priority order:
Engineering controls,
Administrative controls
Personal Protective Equipment
However, eliminating the hazard and substitution have usurped engineering control’s position at the top of the hierarchy although they have always been obvious best options, just not always included in discussions of the hierarchy of controls. Identify two examples where elimination of the hazard or substitution was, or might be, applied as a means of hazard control. Discuss some of the pros and cons of this option as compared to the other options in the hierarchy. You may also select examples from places you have worked or for which you have some familiarity.
Sample Answer
Here are two examples where elimination of the hazard or substitution was, or might be, applied as a means of hazard control:
1. Eliminating the use of asbestos
Asbestos is a known carcinogen, and it has been used in a variety of products, including insulation, roofing materials, and brake pads. However, the dangers of asbestos have become well-known, and many companies have eliminated its use. For example, the United States Environmental Protection Agency (EPA) has banned the use of asbestos in most products.
2. Replacing lead-based paint
Lead-based paint is another known carcinogen, and it was once commonly used in homes and buildings. However, the dangers of lead-based paint have also become well-known, and many companies have replaced it with safer alternatives. For example, the EPA has banned the use of lead-based paint in homes built after 1978.