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 c

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...