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NYC-WTC_000195191

Label derived from the City's folder field. The City does not supply document titles.NYC-WTC_000195191–000195192
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NYC 9/11 Public Portal Document

Summary of Asbestos Sampling Results Page 1 of 2

Address: 80 Warren St. Date sampled: Nov 15, 2001

Dust samples Fibrous materials in dust found by Polarized Light Microscopy (PLM) Analysis: Polarized Light Microscopy identifies asbestos fibers by shape and optical characteristics. Other fibers such as fabric (synthetics), paper (cellulose) and fiberglass may be identified in the analysis. The laboratory analyst counts the fibers present to give an estimate of fiber content as a percent.

Area Sampled Outside Common Residence 1 [Residence 2 Sample Numbers No Dust No Dust No Dust o Dust Available Available Available -vailable

Asbestos present in dust: No Dust No Dust No Dust o Dust Chrysotile asbestos Available Available Available .vailable

Asbestos in dust as determined by Transmission Electron Microscope (TEM) Analysis: TEM analysis was conducted on all dust samples, which showed asbestos content, by PLM as less than 1%. TEM analysis is very specific, can detect smaller fibers of asbestos and is sensitive to fewer interferences. This analysis was done to confirm the PLM findings of no asbestos shown above.

Area Sampled Outside Common Residence 1 .esidence 2 Sample Numbers No Dust No Dust No Dust b Dust Available Available Available .vailable Asbestos present in dust No Dust No Dust No Dust b Dust Chrysotile Available Available Available .vailable

C;\Documents and Settings\njeffery\Local Settings\Temp\Summary of Asbestos Sampling Resultsl22801.doc

CITY_21MC100_001062559 NYC-WTC_000195191

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NYC-WTC_000195191Source: NYC Law Department, mirrored locally

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