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Preliminary health report, World Trade Center, Oct 2001

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Preliminary health evaluation report regarding the World Trade Center site submitted in October 2001.

NYC-WTC_000178054–000178067
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NYC 9/11 Public Portal Document

I World Trade Center.f^f Page 111

Table 3. Particle characterization of surface residue collected four blocks northeast of the northern base of WTC Building #7 (sample location #6).

g Construction debris € Chrysotile asbestos fibers ’ ... plaster € Synthetic fibers ... carbonate fragments € Cellulose fibers ’ ... mica/vermiculite € Insect parts ... glass fibers € Tar fragments ... chemically processed cellulose fibers g Quartz grains g Low-temperature combustion material ’ € Hair

’ includes charred wood fragments some with adhering carbonate binder, total estimated to comprise 01 % ’ cotton and paper

Table 4. Particle characterization of surface residue collected two blocks northeast of the northern base of WTC Building #7 (sample location #10).

g Construction debris € Chrysotile asbestos fibers ’ ... plaster € Synthetic fibers ... carbonate fragments € Cellulose fibers ’ ... mica/vermiculite € Insect parts ... glass fibers € Tarry fragments ... chemically processed cellulose fibers € Plant fragments g Quartz grains € Rust flakes g Low-temperature combustion material ' g Sheet glass fragments g Hair

’ includes charred wood fragments much with adhering carbonate binder, total estimated to comprise 01 % ’ paper

NYC-WTC_000178064

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NYC-WTC_000178064Source: NYC Law Department, mirrored locally

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