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Asbestos air sampling results, Oct 19 2001
Machine-extracted title · confidence 95%Report of asbestos fiber analysis by TEM for air samples taken inside and outside a building on October 19, 2001.
NYC-WTC_000182568Page image
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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: 10/20/01
ASBESTOS FIBER ANALYSIS BY TRANSMISSION ELECTRON MICROSCOPY (TEM) With Fiber Identification by Selected-Area Electron Diffraction (SAED) and Energy-Dispersive X-RAY Spectroscopy (EDS) Method; AHERA Final Rule, EPA Federal Register (40 CFR, Part 763), Vol. 52, No, 210, October 30, 1987
Sample Identification Analysis Parameters
Project/Site: New Stuyvesant H.S., 345 Chambers St., NY, NY TEM Sample No.: 5730 - 61713 Various Sites Inside and Outside the Building Date Received: 10/19/01 Grid Openings Analyzed:__ 9
Project Sample No.: 23 Average Grid Opening: 106.00 um
Air Volume: 1976 liters Total Area Analyzed: 0.0450 nim2
Filter Type: MCE 25 mm diam., Pore Size: 0.45 um Analytical Sensitivity: 22.2 s/nim2 Effective Area: 385 mni2 0.0043 s/cc
FIBROUS PARTICULATES ANALYZED Number Observed CONCENTRATION Total Single Matrix Total. Struct. Filter Air Fibers Bundles Clusters Struct. Struct >=5um Str'jct/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 Q.QOOO 0
Ambiguous 0 0 0 0 0 0 0.0 0.0000 0
Total asbestos (includes ambiguous structures) 0 0 0.0 0.0000 0 Non-Asbestos 0 0 0 0 0 . 0 0.0 0.0000 N/A No Identification 0 0 0 0 0 0 0.0 0.0000 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
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:
Roman Peysakhov Michael A. Gorycki, Ph.D. Director of Electron Microscopy
CITY_21MC100_0 03099578
NYC-\/VTC_000182568
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NYC-WTC_000182568Source: NYC Law Department, mirrored locally
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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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