Second volume of ambient air sampling and visual observation results for 105 Duane Street after the WTC collapse.
NYC-WTC_000104321–000104551Folder label: “105 DUANE ST 1001650, 151/1”
OCR status: ok · source: pdftotext
NYC 9/11 Public Portal Document
ATC Environmental, Inc. 104 East 25th Street New York, New York 10010
I ATC Associates Inc. 104 East 25th Street Approved N.Y. State ELAP #10879 ACCREDITED NVLAP Lab Code # 1187 New York, NY 10010 Report Date: 10/26/01
ASBESTOS FIBER ANALYSIS BY TRANSMISSION ELECTRON MICROSCOPY (TEM) With Fiber Identification by Selected-Area Electron Diffraction (SAEDI 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: Tribeca Towers, 105 Duane St., NY, NY TEM Sample No.: 5771 - 62577 Various Sites Date Received: 10/26/01 Grid Openings Analyzed: 6
Project Sample No.: 13 Average Grid Opening: 106.00 um
Air Volume: 1300 liters Total Area Analyzed: 0.0674 mm2
Filter Type: MCE 25 mm diem., Pore Size: 0.45 um Analytical Sensitivity: 14.8 s/mm2 Effective Area: 385 mm2 0.0044 s/cc
-------- --- -------- ----------- ------------ FIBROUS PARTICULATES ANALYZED Number Observed CONCENTRATION Total Single Matrix! Total. Struct. Filter Air Fibers Bundles Clusters Struct. Struct. >=5uc Struct/mm2 Struct/cc ngm/m3
Chrysotile 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 0 0 0 0 C 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 C 0 0.0 0.0000 N/A
Totals (All Structures) a 0 0.0 0.0000 N/A The estimated uncertainty of this analysis is : 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:
Marek Peysakhov Michael A. Gorycki, Ph.D. Director of Electron Microscopy
I NYC-WTC 000104362
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Summary of ambient air sampling and visual observations at 105 Duane Street following the WTC collapse.
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