4 ms·

The towers had a high amount of asbestos. I am not surprised that we see the effects so many years later.

• ncmncm 5y ago
  No asbestos. It was extremely fine particles of other materials.
  • jjulius 5y ago
    To clarify, they didn't contain a "high amount" of asbestos, but there also wasn't "no" asbestos: >Much of the thousands of tons of debris resulting from the collapse of the Twin Towers was pulverized concrete, which is known to cause silicosis upon inhalation. The remainder consisted of more than 2,500 contaminants, more specifically: 50% non-fibrous material and construction debris; 40% glass and other fibers; 9.2% cellulose; and 0.8% of the extremely toxic carcinogen asbestos, as well as detectable amounts of lead and mercury. https://en.wikipedia.org/wiki/Health_effects_arising_from_the_September_11_attacks https://en.wikipedia.org/wiki/Health_effects_arising_from_th...
    • culopatin 5y ago
      0.8% of that mass is still a lot. Imagine having the pile of both towers and grabbing 1/100 of it.
  • mathiasrw 5y ago
    When the constriction of the twin towers started in 1968 asbestos was used for insulation. In April 1970, the New York City Department of Air Resources established asbestos spray insulation regulations. As a result, the Department ordered contractors to stop the use of asbestos in the World Trade Center. The upper levels of the north tower and the entirety of the south tower contained asbestos alternatives. It's estimated that the north tower contained 300 – 400 tons of asbestos.
    • ncmncm 5y ago
      I am corrected.