2. Substitution:
If eliminating a hazard is not possible, substitution is the next control method that should be considered.
Substitution is the act of replacing something with another thing… in this case, a hazard is replaced with a less hazardous one. The hazards and risks associated with an alternative must be thoroughly assessed to determine if it is an appropriate replacement. Care must be taken to make sure that the new hazard is actually lower, and that one hazard is not being replaced with another that is just as harmful or more harmful.
Example :
Replacing solvent-based paints with a water-based alternative;
Using a larger granule form of a product instead of a fine powder to reduce dust generation;
Using electric motors rather than diesel ones to eliminate diesel exhaust emissions.