NYC 9/11 Public Portal Document
I ATC Environmental, Inc.
104 East 25th Street
New York, New York 10010
ATC Associates Inc. Approved N.Y. State ELAP #10879
104 East 25th Street ACCREDITED NVLAP Lab Code # 1187
New York, NY 10010 Report Date: 10/25/01
ASBESTOS FIBER ANALYSIS BY TRANSMISSION ELECTRON MICROSCOPY (TEM)
With Fiber Identification by Selected-Area Electron Diffraction (SHED: and Energy-Dispersive X-RAY Spectroscopy
(EDS)
Method: AHERA Final Rule, EPA Federal Register (40 CFR, Part 763), Vol. 52, Nc. 210, October 30, 1987
l Sample Identification Analysis Parameters
Project/Site: Related, Tribeca T.R. 105 Duane St. NY, NY TEM Sample No.: 5761 62189
Various Sires
Date Received: 10/25/01 Grid Openings Analyzed: 6
Project Sample No.: 16 Average Grid Opening: 106.00 urn
Air Volume: 1300 liters Total Area Analyzed: 0.0674 mm2
Filter Type: MCE 25 mm diam., Pore Size: 0.45 um Analytical Sensitivity: 14.8 s/mm2
Effective Area: 385 mm2 0.0044 s/cc
FIBROUS PARTICULATES ANALYZED
Number Observed CONCENTRATION
I Single
Fibers Bundles Clusters
Matrix
Struct.
Total.
Struct.
Total
Struct.
>-5um Struct/mm2
Filter
Struct/cc
Air
ngm/m3
Chrysotile Asbestos 0 0 0 0 0 0 0.0 0.0000 0
Amphibole Asbestos 0 0 0 0 0 0 0.0 0.0000 0
Ambiguous 0 G 0 0 0 C 0.0 0.0000 0
Total asbestos (includes ambiguous structures)
I Non-Asbestos
No Identification
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0.0
0.0
0.0
0.0000
0.0000
0.0000
0
N/A
N/A
1 Totals (All Structures)
The estimated uncertainty of this analysis is 1 standard deviation.
0 0 0.0 0.0000 N/A
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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.
I Analyzed by: Report Reviewed by:
Roman Peysakhov
I Michael A. Gorycki, Ph.D.
Director of Electron Microscopy
I
NYC-WTC 000104156
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