NYC 9/11 Public Portal Document
I
ATC Environmental, Inc.
I 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: 10/26/01
ASBESTOS FIBER ANALYSIS BY TRANSMISSION ELECTRON MICROSCOPY (TEM)
With Fiber Identification by Selected-Area Electron Diffraction ,SAED) and Energy-Dispersive X-RAY Spectroscopy
;EDSI
Method: AHERA Final Rule, EPA Federal Register 140 CFR, Part 763 Vol. 5 , Nc. 210, October 30, 1987
Sample Identification Analysis Parameters
I Project/Site: Related, Tribeca T.R.
Date Received: 10/26'01
Various Sites
105 Duane St., NY, NY TEM Sample No.: 5769 -
Grid Openings Analyzed:
62536
6
I Project Sample No.: 30 Average Grid Opening: 106.00 um
Air Volume: 1300 liters Total Area Analyzed: 0.0674 mm2
Filter Type: MCE 25 mm diam. Pore Size: 0.45 um Ana:yt:cal Sensitivity: 14.8 s/mm2
Effective Area: 385 mm2 0.0044 s/cc
FIBROUS PARTICULATES ANALYZED
Number Observed CONCENTRATION
Tcta-
Single Matrix Total. Struct Filter Air
Fibers Bundles Clusters Struct. Struct. -=5um Struct/mm2 Struct/cc nom/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
I Ambiguous C 0 0 0 C C 0.0 0.0000 0
1 Total asbestos (includes ambiguous structures)
Non-Asbestos
No Identification
0
0
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
Totals (All Structures) 0 0 0.0 0.0000 N/A
The estimated uncertainty of this analysis is 1 standard deviation.
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:
Marek Peysakhov Michael A. Gorycki, Ph.D.
Director of Electron Microscopy
I
NYC-WTC 000104254
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