NYC 9/11 Public Portal Document
10/01/2001 10:40 FAX 212 353 8306 -_ ATC 0]007/020
ATC Environmental, Inc.
104 East 25th Street
New York, New York 10010
Approved N.Y. State ELAP #10879
N.Y.C. Housing Authority ACCREDITED-NVL:AP Lab Code # 1187
250 Broadway, 16th Floor
Report Date: 09/16/01
New York, NY 10007
MICROSCOPY (TEM)
ASBESTOS FIBER ANALYSIS BY TRANSMISSION ELECTRON
atd tcrgy-Disperaivo X-EAT Spectrosapy (&0.a)
With Fiber Ideatifieatiors by salectcd-Area Electron Diffraction ($AED)
Part 763), Vol. 52, No. 21.0, October 30, 1987
Method, AHERA Final 8110, EPA Federal ROSister (40 CPR,
Raffle Identifiaation Ar.slvsiE Pasamctcrz
7tH Sample NO.: 5512 - $9076
pro3act/5ita: 250 Rraafluay. NT. NN
floors31 27 19 8
Grid 4genings Arsalyzcd=
Date Received: 09 6 01
Average Grid openings _100
5. ug
Project $saeple No.:02
Total Area Afly2ed: 0.0440 UV
Air volume: 1800 liters
Analytical sensitivity: 2.2 slurZ
Fitter Type: MC6 2s ere diem., Pore Size: 0.45 um
0.0048 s/cc
Effective Area: 385 re*2
FIBROUS PARTICULATES ANALYZED
rumbrr observe
CONCENTRATION
Total
Single Matrix Total. struct. Filter Air
etruet. >=Sum struct/5m2 Struct/=e n2/n3
Fibers R+uadles Clusters Strut).
0 0 0 0.0 0.0000 0
Chzyaotile AebeetoC 0 0 0
0 0 0 0 0.0 0.0000 a
Amphibole Asbestos 0 0
0 a 0.0 0.0000 0
Ambiguous 0 0 0 0
0 0 0.0 0.0000 0
Total asbestos (includes ambigcous structures)
0 0 0.0 0.0000 NIA
Non-Asbestos 0 0 0 0
0 0.0 0.0030 N/A
No identification 0 0 0 0 0
a 0 0.0 0.0000 N/A
Totals (All Structures)
The eetimatcd uncertainty of this analysis is 1 standard deviation.
---------------------------------------------------------------'---
-----------------------------------------------
Non-asbestos fiber i.d. (EDS/SHED): None detected
Amphibole Asbestos Type: None detected
------------------
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TEM method.
The Analysis was carried out in'accordance with the approved
compliance with the quality specified for the meth
This laboratory is in
Analyzed by: Report Reviewed by:
Roman Peysakhov Michael A. Gorycki, Ph.D.
Director of Electron Microscopy
NYC-WTC 000106081
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