Careful, beachnut, you have no proof that a significant amount of the dust entered 130 Liberty during clean-up.
And you are, too, missing the obvious facts that these are not iron-spheres but iron-rich-spheres - mostly oxides.
Oh, don't clean your house for 8 months. It is reality dust and fumes from the clean up would be in 130 Liberty. Are you saying no dust or fumes entered 130 Liberyt during clean up? No.
Oops, he will say melted during the WTC EVENT, and forget CLEAN-UP is a MAJOR PART of the event, see, he did it while I was mowing the lawn and editing this junk. Get him to provide the evidence. AND he says it was during the WTC EVENT. Is iron in mineral wool? How is mineral wool made? What is his conclusion?
There are enough sources for iron rich sphere before and after clean up with out make up idiot conspiracy theories born out of paranoia. I have iron all over my back yard, your back yard, and the earth.
If he is saying the iron is from steel melting, then it was from the clean up and construction (fly-ash, mineral wool, etc. just add what was there). Thousand of steel beams were cut/melted during clean up, you have seen the photos. If there is iron from melted steel, it was during clean up, and other sources, like fly-ash, etc. The poor guy has no idea what happen on 911.
His claim is failed, no matter how you want to address it.
I would have to say the clean up counts as sources of dust and fumes, and can be stuck in a report as part of the WTC event when that report is based on data collected after the WTC event, which includes MONTHS of clean up. I can't be wrong, it is a fact. This is cool