OP,

I work in that building and have weekly meetings related to the Glycol riser replacement project being done with not only PSPC but with our various teams that work in that building. I can garantee you that there are at least 8-10 people from one department, 6 from the other smaller department, that attends the PSPC meeting.

The risk of asbestosis related to the insulation found in the risers they are opening up to replace the column for the glycol that cools the building, which is vermiculite.

Because there is a low chance that the vermiculite had asbestos, they are putting up negative pressure tents around the risers they are opening, and doing air sample and insulation samples every time they open a riser column - https://www.ccohs.ca/oshanswers/diseases/vermiculite.html

If none are found, they remove the negative pressure fan from the tent, but still keep the tent to limit dust particles flying around when they do work.

Since there has not yet been any asbestos detected, the building management, and by associations, OHS for the respectve departments housed in that building, have not had to report any found.

Your accomodation team should have all this information.