NYC 9/11 Public Portal Document
10/01/2001 10:41 FAX 212 353 8306 ATC l 010/020
ATC Environmental, Inc.
104 East 25th-Street
New York, New York 10010
N.Y.C. Housing Authority Approved N.Y. State ELAP #10879
250 Broadway, 16th Floor . ACCREDITED .NVLAP Lab Code ## 1187
New York, NY 10007 Report pate: 09/16/03.
A~ S~t ESTOS FIBER ANALYSIS av TRANSMISSION ELECTRON MICROSCOPY TEM
.~1.7D.Ct67;v y,r~
FIBER
(IDs)
with Fiber Idcntiticatioa by Selected-Ares Electron Dirfractioa (916=1 and ax=SY-Dispersiva X-RAY Spectroscopy
Part 7531, Vol. 52. So. 210, October 30, 1957
Meters ABERA Final Rule, EPA Federal Regioter (40 CFR,
samolo Xdeutificatq io1vtis parametorn
Tst Sa-,Fle No.: 5512 - 59079
po ct/Site 250 rosdwa
Floors 31, 27. 19, 8
Grid Openings Analyzed:4
Date Received& 09 S 01
Project sample No.s 05 AveraSo Grid Opening: 105.00 um
Air Volumos 1800 liters Total Area Analyzeds 0.0450 mm2
Analytical SeauitiVity: 22.2 n/seti2
Filter TypesMC¢ 25 mm diem.. Pore Size: 0.45 us
Effective Areas 385 smn2 _ 0.0048 n cc
---------------------------------------------------'-------------------•------------------------------------ '
FIBROUS PARTICULATES ANALYZED
Number Cbsexyed CONCENTRATION
Total
single Matrix Total. strict. Filter Air
steuct. 5 . -sux S-rvct/mxt strict/-c n05/m3
More Bundles Clusters•
0 0 0 0 0.0 0.0000 0
cbryaotile Asbostoa 0 0
0 0 0 0.0 0.0000 0
Amphibole Asbestos 0 0 0
0 0 0 0 0 0.0 0.0000 0
Ambiguouo 0
C 0 0.0 0.0000 0
Total asbestos (include~ ambiguous structures)
0 0 0 0 0 0 0.0 0.0000 N/A
Non-Asbestos
0 0 0 0 C 0.0 0.0000 N/A
No Identification 0
0 0 0.0 0.0000 N/A
Totals (All 3tructurea)
The estimated uncertainty of this analysis is 1 standard dev-ation.
Non-asbestos fiber i.d. (EDS/SHED): None detected
Amphibole Asbestos Type: None detected
----------------------------------------------------------------------------;----•---------------------------------
The Analysis was carried out in'accordance with the approved TEN method.
This laboratory is in compliance with the quality specified for the metl
Analyzed by: Report Reviewed by:
Roman Peyeakhov Michael A. Gorycki, Ph.D.
Director of Electron Microscopy
NYC-WTC 000106084
OCR can misread numbers and units. Confirm readings against the page image before using them.