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Hazard substitution is a hazard control strategy in which a material or process is replaced with another that is less hazardous. Substitution is the second most effective of the five members of the hierarchy of hazard controls in protecting workers, after elimination .
The substitution of dangerous chemicals in the workplace is the process of replacing or eliminating the use chemicals that have significant chemical hazards. The goal of the substitution process is to improve occupational health and safety and minimize harmful environmental impacts . [ 1 ]
Hazard control methods at the top of the graphic are potentially more effective and protective than those at the bottom. Following this hierarchy of controls normally leads to the implementation of inherently safer systems, where the risk of illness or injury has been substantially reduced. [1]
Controlling exposures to occupational hazards is considered the fundamental method of protecting workers. Traditionally, a hierarchy of controls has been used as a means of determining how to implement feasible and effective controls, which typically include elimination , substitution , engineering controls, administrative controls , and ...
Risk control, also known as hazard control, is a part of the risk management process in which methods for neutralising or reduction of identified risks are implemented. . Controlled risks remain potential threats, but the probability of an associated incident or the consequences thereof have been significantly red
The hierarchy is traditionally depicted as a vertical listing of hazard control and exposure control options in descending order of priority, beginning at the top with elimination of the hazard as the most effective control, followed by substitution of a less hazardous option, followed by engineering controls to prevent exposures, followed by ...
The four main methods for achieving inherently safer design are: [6] Minimize: [7] Reducing the amount of hazardous material present at any one time, e.g. by using smaller batches. Substitute: Replacing one material with another of less hazard, e.g. cleaning with water and detergent rather than a flammable solvent
An example of a strong, hazard-based interpretation of the substitution principle in application regarding chemicals considers the overall impact: "hazardous chemicals should be substituted by less hazardous alternatives or preferably alternatives that mitigates identifiable hazards impacts". [1]