ATC Environmental lab report detailing asbestos fiber identification via TEM and EDS methods at a school site in October 2001.
NYC-WTC_000176420
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: 10/16/01
ASBESTOS FIBER ANALYSIS BY TRANSMISSION ELECTRON MICROSCOPY (TEM) With Fiber Identification oy Selected-Area Electron Diffraction (SAEDi and Energy-Dispersive X-RAY Spectroscopy (EDS) Method: AHER;\ Final Rule, i^PA Federal Register (40 CFR, Part 763), Vol. 52, No. 21C, October 30. 1967
Analysis Parameters
Project/Site: Nevi Stuyvesant H.S., 345 Chambers St., NY, NY TEM Sample No.: 5698 61345 Exterior Interior of Buildinq & Roof Date Received:1££15/^ Grid Openings Analyzed;__4
Project Sample No.: NSHS-E:r-1C715-12 Average Grid Opening: 106.00 um
Air Volume .-i^lTlicers. Total Area Analyzed :^0;045 0 jTim2.
Filter Ty^e: MCE 25 mm diam.. Fore Size: 0.45 um Analytical Sensitivity: 22.2 s/mm2 Effective Aiea: 385 mm2 0.0045 s/cc
FIBROUS PARTICULATES ANALYZED Number Observed CONCENTRATION Total Single' Matrix Total. Struct. Filter Air Fibers Bundles Clusters Struct. Struct >=5uni Struct/mm2 Struct/cc nqm/mG
Chrysotile; Asbestos 0 G 0 0 0 c 0.0 0.0000
Amphibole Asbestos 0 0 0 0 0 0 C.0 0.0000
Ambiguous 0 0 0 0 0 0 0,0 0.0000 0
Total astxsstos (includes ambiguous structures) 0 0 0.0 0.0000 c Non-Asbestos 0 0 0 0 0 0 0.0 0.0000 N/A No Identification 0 0 0 0 0 0 o.c 0.0000 N/A
Totals (All Structures) 0 0 0.0 0.0000 N/A The estimcited uncertainty cf 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.
Ariel lyzed by: Report Reviewed by:
Marek Peysakhov Michael A. Gorycki, Ph.D. Director of Electron Microscopy
CONFIDENTIAL, CITY_21MC100_003470043 SUBJECT TO PROTECTIVE ORDER NO. 2, SEPT. 2008
NYC-WTC_000176420
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NYC-WTC_000182558
Cover letter and results for transmission electron microscopy analysis of air samples from a high school on October 16, 2001.
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Report of asbestos fiber analysis by TEM for air samples taken inside and outside a building on October 17, 2001.
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Cover letter and results for transmission electron microscopy analysis of air samples from a high school on October 16, 2001.
6 shared non-person entities · 1 shared topics · similarity 0.993
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Air sampling results from the exterior of a high school analyzing asbestos fibers using transmission electron microscopy.
7 shared non-person entities · 1 shared topics · similarity 0.992
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Cover letter and results for transmission electron microscopy analysis of air samples from a high school on October 22, 2001.
7 shared non-person entities · 1 shared topics · similarity 0.992
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NYC-WTC_000182558
Cover letter and results for transmission electron microscopy analysis of air samples from a high school on October 16, 2001.
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machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000182563
Report of asbestos fiber analysis by TEM for air samples taken inside and outside a building on October 17, 2001.
Similarity score 0.997 (not a probability)
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Cover letter and results for transmission electron microscopy analysis of air samples from a high school on October 16, 2001.
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Cover letter and results for transmission electron microscopy analysis of air samples from a high school on October 16, 2001.
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