Solvents are toxic substances that are in widespread use in Québec workplaces, and the industrialized world generally. They particularly useful in metal degreasing, the electronics, aerospace and printing sectors, paint and adhesive production, and dry-
cleaning.

Solvent substitution can result in the replacement of a toxic or flammable solvent by a less dangerous substance. However, elements such as worker health and safety, environmental protection, cost, and technical feasibility have to be taken into account. Solutions, such as process modification, equipment modification, source isolation, and ventilation may also be possible.

A critical review of the scientific, technical and governmental literature on solvent substitution will be performed, and an inventory of solvent use and occupational exposure in Québec drawn up. Substitution requirements will be identified and prioritized. High-priority economic sectors and industrial processes will be studied in greater detail and solutions proposed. An accessible document that facilitates decision-making will be produced and made available to health and safety specialists.