ATC Environmental report on asbestos fiber analysis by TEM for exterior and interior samples collected at a school at 345 Chambers Street.
NYC-WTC_000176451
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: 10/23/01
ASBESTOS FIBER /ANALYSIS BY TRANSMISSION ELECTRON MICROSCOPY jTEM} With Fiber Identification by Selected-Area Electron Diffraction (SAED) and Energy-Dispersive X-RAY Spectroscopy (EDS? Method: ?HERA Final Rule, EPA Federal Register (40 CFR, Part 763), Vol. 52, No. 210, October 30, 1987
Sample IdentificaC-on Analysis Parameters
Project/Site: Nev Stuyvesani K.S., 345 Chambers 5t., NY, NY TEM Sample No.: 573° €1951 Exterior S: .Interior of Building & Roof Date Received: lQ/22/01 Grid Openings Analyzed:
Project Sample No.: 16 Average Grid Opening: 106.00 um
Air Volume: 1944 liters Total Area Analyzed
Filter Type; MCE 25 mm ciauu, Pore Size: C.45 um Analytical Sensitivity; 22.2 s/rnm2 Effective Aren: 385 mm2 0.0044 s/cc
FIBROUS PARTICULATES ANALYZED Number Observed CONCENTRATION Total S-ngli? Matrix Total. Struct. Filter Air Fr-bers Bundies Clusters Struct. Struct > = 5um Struct/mm2 Struct/cc nqm/m3
Chrysotili? Asbestos 0 0 0 0 0 0 0. 0 0.0000 0
Amphibole Asbestos 0 0 0 0 0 0 0.0 0.0000 0
Ambiguous c 0 0 0 0 0 0,0 0.0000 0
Total asbestos (includes ambiguous structures) 0 0 0.0 0.0000 0 Non-Asbest.os C 0 0 0 0 0 0.0 0.0000 N/A No Identification C 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 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.
Analyzed by; Report Reviewed by.-
Ronan Peysakhov Michael A. Gorycki, Ph.D. Director of Electron Microscopy
CONFIDENTIAL, CITY_21MC100_003470317 SUBJECT TO PROTECTIVE ORDER NO. 2, SEPT. 2008
NYC-WTC_000176451
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NYC-WTC_000176401
Air sampling results from the exterior of a high school analyzing asbestos fibers using transmission electron microscopy.
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Cover letter and results for transmission electron microscopy analysis of air samples from a high school on October 23, 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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Air sampling results from the exterior and interior of a high school analyzing asbestos fibers using transmission electron microscopy.
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Air sampling results from the exterior of a high school analyzing asbestos fibers using transmission electron microscopy.
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Cover letter and results for transmission electron microscopy analysis of air samples from a high school on October 23, 2001.
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