They're still finding bone fragments in the Deutsche Bank Building. It's a crime scene. They had just started working from the top down when they realized there are human remains.
Not much work seems to be getting done there. I don't know that they were equipped to deal with much of this sort of thing, and I don't remember hearing anyone talk about how much in the way of remains there actually are in the building. It's possible this could be the case in a lot of the building.
The instruments that look like they're built to measure air quality have been situated at various vantage points, all within a few yards of the Deutsche Bank Building, for quite some time, probably close to two years.
I don't know why Bloomberg won't 'let' a qualified agency perform a search for remains, but I suspect it might have something to do with a boondoggle that could conceivably come down the pike between the EPA & a presumed insurer of the property. In any case, I don't think we're talking about 'stains' here.
I have my issues with Bloomberg, but Pataki is quite possibly my least favorite politician that I've ever seen.
Stay tuned as, in time, I think you'll see Bloomberg pass Pataki to the bottom of your list.