I would say that the approach we have now, whether you want to call it a risk-based approach or not, is not working. It's not effective.
To give you an example, we can look at the CMP, the chemicals management plan, which identified 200 of the highest priority substances in Canada. These were substances already in use that raise the biggest flags with respect to persistence, bioaccumulation, and toxicity.
Out of those highest 200 from a list of 4,300 high priority substances, you would expect that a fairly high proportion of them would be designated toxic. When they launched the CMP, the government stated there was a predisposition toward finding toxicity for those 200. Over the course of the past decade, about a quarter of those have been found to be toxic, and of those, as I mentioned, a number of the most dangerous ones aren't even subject to regulatory actions to decrease their presence in our environment and our bodies.
In looking at that, I think we have to say there's something broken with the way we're doing assessments of toxicity and the way we're acting in response to those.