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Asbestos fiber analysis results, H.S. of Economics & Finance, Apr

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Laboratory report documenting transmission electron microscopy results for asbestos fibers in air samples.

NYC-WTC_000179542–000179564
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NYC 9/11 Public Portal Document

Attn: Mr. Bernard Orlan Received: 4/7/02 4:00:00 PM N.Y.C. Board of Education ATC Group#; 7351 28-11 Queens Plaza North Analysis Date; 4'8/02 Long Island City, NY 11101 Fax: (212) 475-4122 Phone: (212) 477-8941 Project: H.S. of Economics & Finance, 100 Trinity Pl., NYC

Asbestos Fiber Analysis by Transmission Electron Microscopy (TEM) Performed by EPA 40 CFR Part 763 Final Rule (AHERA) .Analyiical Asbestos Area Non Asbestos tr Structures Sensitivity Coitceiitration Sample I'nliiine Analy-eil Asb Type(s) 5/t (S/cc) (S/inin-) (S/cc) Notes

19 1920.00 0.0450 0 None Detected 0 0 0.0045 <22.24 <00045 7151

0.00 0.0450 0 None Detected 0 0 #Div/0! <22.24 <#Div/0 -IS #Div/0

MICHAEL A. GORYCKI, Ph.D. MICHAEL GORYCKI Analyzed by: AMi’oved by

Disclaimer: The laboratory is rot responsible for cata repon.ea in structures,'CC, which is dependent on volume collectec by non-!atoratory personnel This lab is only responsible for data reported in struclures/mmA This report may not be reproduced, except in full, without wriden approval by ATC Associates Inc. ’his report m.ay not oe used to claim product endorsement by NVLAF or any other agency of the U.S. Government. This reports relates only to the samples reported above. Quality control data (including 95% confidence limits and laboratory and analysis' accuracy and precision) is available upon request

Accreditee lorNVLAP PLM/TEM#101187-0, NY State ELAP#10879

3 Ilf 3

CONFIDENTIAL, CITY_21MC100_003459949 SUBJECT TO PROTECTIVE ORDER NO. 2, SEPT. 2008

NYC-WTC_000179544

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NYC-WTC_000179544Source: NYC Law Department, mirrored locally

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NYC-WTC_000181750

Documentation of asbestos fiber analysis by TEM performed on samples from P.S. 234M received on May 21, 2002.

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