OCR status: ok · source: pdftotext
NYC 9/11 Public Portal Document
ATC Environmental, Inc. 104 East 25th Street New York, New York 10010
N.Y.C. Board of Education Approved N.Y. State ELAP #10879 28-11 Queens Plaza North ACCREDITED NVLAP Lab Code # 1187 Long Island City, NY 11101 Report Date: 10/25/01
ASBESTOS FIBER ANALYSIS BY TRANSMISSION ELECTRON MICROSCOPY (TEM) With Fiber Identification by Selected-Area Electron Diffraction (SAED) and Energy-Dispersive X-R-AY Spectroscopy (EDS) Method: 7HERA Final Rule, DPA Federal Register (40 CFR, Part 763), Vol. 52, No. 210, October 30, 1987
Sample Identification Analysis .Parameters
Project/Site: New Stuyvesanc K.S., 345 Chambers St., NY, NY TEM Sample No.: 5766 62348 Ext^riorjiT 11 erior of Building & Roof Date deceived: 10/25/01 Grid Openings Analyzed:__ 4
Project Sample No.16 Average Grid Opening: 106.00 um
Air Volume:1928]7t^rs Total Area Analyzed: 0.0450 mm2
Filter Tyoe: MCE 25 mm dram., Pore Size: 0.45 urn Analytical Sensitivity: 22.2 s/mm2 Effective Area: 385 mrr^ 0.0 0,44 5/co
FIBROUS PARTICULATES ANALYZED Number Observed CONCENTRATION Total Single Matrix Total, Struct. Filter Air Fibers' Bundles Clusters Struct. Struct >=5um Struct/mm2 nqm/m3
Chrysotile Asbestos 0 0 0 0 0 0 C. 0 0.0000 C
Amphibole Asbestos 0 C 0 0 0 0 0.0 0.0000 0
Ambiguous 0 0 0 0 c 0 o.c 0.0000 0
Total asb€:stos (includes ambiguous structures) 0 0 0.0 0.0000 0 Non-Asbest.os 3 0 0 0 0 0 0.0 0.0000 N7A No Identii'ication 0 0 0 0 0 0 0.0 0 . C000 N/A
Totals (All Structures) 0 0 0.0 0.0000 N/A The estime.ted uncertainty of this analysis is 1 standard deviation.
Non-asbestos fiber i.d. (EDS/SAED): None detected Amphibole Asbestos Type: None detected
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:
Michael A. Gorycki, Ph.D. Michael A. Gorycl^i, Ph.D. Director of Electron Microscopy
CONFIDENTIAL, CITY_21MC100_003473360 SUBJECT TO PROTECTIVE ORDER NO. 2, SEPT. 2008
NYC-WTC_000177617
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NYC-WTC_000176424
ATC Environmental lab report detailing asbestos fiber identification via TEM and EDS methods at a school site in October 2001.
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Report of asbestos fiber analysis by TEM for air samples taken inside and outside a building on October 20, 2001.
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ATC Environmental lab report detailing asbestos fiber identification via TEM and EDS methods at a school site in October 2001.
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NYC-WTC_000176424
ATC Environmental lab report detailing asbestos fiber identification via TEM and EDS methods at a school site in October 2001.
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