A radon test, really?

I thought I was finished with radon tests after I got out of real estate and sold my house, but not so.  The apartment complex where I live is evidently getting new financing (at least that's the most reasonable explanation I've heard). During the last few weeks we have had three apartment inspections. This is the first time in the almost two years that I've lived here that we've had apartment inspections. I don't mind the inspections.  I understand that any investor or financer would want to see the condition of the buildings. However, two days ago we received notice that they're doing radon inspections and everyone needs to keep their windows shut, fans off, etc. Now, I do understand the dangers of radon but I also know that radon is found in the lowests levels of houses. If a house has a basement you set up the test in the basement. If it's on a slab, then you test on the first floor. But I'm having a hard time imagining that they will find any trace of radon on the 10th floor. If they do, they have a real problem. I really can't imagine what radon abatement would look like in a 14 story building. The testing will be finished tomorrow. I doubt that we residents will ever hear the results. It will be interesting to see what comes next.