When workers deem a situation to be dangerous, under the provisions of the Act respecting Occupational Health and Safety, they have a right to refuse unsafe work, but that right does not last for ever. The Commission de la santé et de la sécurité du travail du Québec obviously carries out an investigation and then hands down a decision. That is how those situations are resolved. We are not talking about a strike here.
On April 21st, 2010. See this statement in context.