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: lO/05/Ol
A5BES:?0S FIBER ANALYSIS BY TRANSMISSION ELECTRON MICROSCOPY (TEM) With Fiber Idsntificat.icn by Selected-Area Electron Diffraction (SAED! and Energy-Dispersive x-raY Spectroscopy (EDS) Method: ANEFA Final Rule, EP?. Federal Register (4C CFR, Part 763), Vol. 52, No. 210, October 30, 1987
Sample Identification Analysis Parameters
Pro; ect/Sit e: Stuwesant H.S., 34S Chambers 3t., NY, NY TEM Sample No.: 5609 60012 Floors 1-10 Date Received; lJD/05/^ Grid Openings Analysed;__ 4
Project Sample No.: SHS-l>lG-10/5-O5 Average Grid Opening: 106 . 00 um
Air Vclume: 1862 liters Total Area Analyzed: 0.0450 mm2
Filter Tytie: MCE 25 mm diam,, Pore Size: 0.45 um Analytical Sensitivity: 22^2 s/rnrri2 Effective Area: 3 8 5 mrn2 0 . 0046 s/cc
FIBROUS PARTICULATES ANACYZEI Number Observed CONCENTRATION Total Sinaie Matrix Total. Struct. Filter Air Fibers Bundles Clusters Struct s -= Pi im StrucCzmm2 Struct/cc nam/m3
Chrysotile Asbestos 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 0 0 0 0 0.0 0.0000 0
Total asbestos (includes amoiguous structures! 0 0 0.0 0.0000 0 Non-Asbestos 0 0 0 0 0 0.0 0.0000 N/A No Identil ioation 0 0 0 0 0 0.0 0.0000 N/A
Totals (All Structures) 0 0 0.0 0.0000 N/A The estimcted uncertainty pc 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.
Ansilyzsd by: Report Reviewed by:
Roman Peysakhov Michael A. Gorycki, Ph.D. Director of Electron Microscopy
CONFIDENTIAL, CITY_21MC100_003473561
SUBJECT TO PROTECTIVE ORDER NO. 2, SEPT. 2008
NYC-WTC_000177641
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NYC-WTC_000182577
Report of asbestos fiber analysis by TEM for air samples taken inside and outside a building on October 20, 2001.
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Air sampling results from the exterior and interior of a high school analyzing asbestos fibers using transmission electron microscopy.
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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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NYC-WTC_000182577
Report of asbestos fiber analysis by TEM for air samples taken inside and outside a building on October 20, 2001.
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