I would say yes, I do. In my own work, I am often jealous of the excess of information and data available in the U.S. compared to Canada. That's not just at the federal level. I would say it's at the provincial level, too.
With respect to your point about collecting data for provinces and making sure that data is held as private, I think much of the information that is held on the U.S. EPA website, EJSCREEN, could be collected from the federal government. I don't think that they would need to necessarily go and collect that from provinces. We have StatCan, which collects demographic data. Air monitoring data that is collected by the federal government across the country could be put into such a website.
I can think of lots of sources. It's just a matter of putting it together, analyzing it and making it publicly available so people can use it. I don't see that as a barrier as much.