NYC 9/11 Public Portal Document
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ATC Environmental, Inc.
104 East 25th Street
New York, New York 10010
Approved N.Y. State ELAP #10879
ATC Associates Inc.
ACCREDITED NVLAP Lab Code # 1187
104 East 25th Street
New York, NY 10010 Report Date: 09/28/01
TEM
ASBESTOS FIBER ANALYSIS BY TRANSMISSION ELECTRON MICROSCOPY
ffraction (8AED) and EnerSY-Dispersive X-RAY spactraocopy (SDS)
With Fiber Identification by Selected-Area Electron
(do CFR, Part 763), Vol, 52, No. 210, October 30, 1987
Method: AHERA Final Rule, EPA Federal Register
Samolr- Identification Anal. :is Parameters
TEM Sample No. 7 557 - 55714
Project/Site; 9 Murray street, NY. NY
3rd P1oor
Grid Openings Analyzed:
Date Received: 09/?8/01
Average Grid Opening: 106.00 um
Project Sample No.: 3-06
1300 liters Total Area Analyzed: 0.0674 mm2
Air Vol.umos
Pore Size: 0.45 tim Analytical Sensitivity: 14.8 s/mm2
Filter Types MCE 25 mm diem.
0.0044 a/cc
Effective Area:j 38
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FIBROUS PARTICULATES ANALYZED
Number. Ob_-erved
CONCENTRATION
Total.
Single Matrix Total_ Struct. Filter Air
Pundlra Clusters 5truct, Rtruct- a=5um Struct mm2 8trvn. ca n m3
Fibers
0 0 0 0 0 0.0 0.0000 0
Chrysotile Asbestos o
0 0 0 0 0 0.0 0-0000 0
Amphibole Asbestos 0
0 0 0 0 0 0 0.0 0.0000 0
Ambiguous
0 0 0.0 0,0000 0
Total aabootas (includes ambiguous .structures)
0 0 0 0 0 0 0.0 0.0000 N/A
Non-Asbestos
0 0 0 0 0 0.0 0.0000 N/A
No identification 0
0 0 0.0 0.0000 D)/A
Totals (Ali Structures)
The estimated unocrtainty of this analysis is 1 standard deviation,
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Non-asbestos fiber i.d. (EDS/SAED): None detected
Amphibole Asbestos Type: None detected
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The Analysis was carried out in accordance with the approved TEM method.
This laboratory is in compliance with the quality specified for the method.
Analyzed by: Report Reviewed by:
Roman Peysakhov Michael A. Gorycki, Ph.D.
Director of Electron Microscopy
NYC-WTC 000097477
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