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
I ATC Environmental, Inc.
I 104 East 25th Street New York, New York 10010
ATC Associates Inc. Approved N.Y. State ELAP #10879 104 East 25th Street 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 Diffracticr ,SAED: and Energy-Dispersive X-RAY Spectrosccpv (SOS' Method: AHERA Final Rule, EPA Federal Register (40 CFR, Par: 763, Vol 52. No. 21,,. October 30, 1997
Sample Identification Analysis Parameters
Project/Site: Tribeca Towers, 105 Duane St., NY, NY TEM Sample No.: 5771 - 62594 Various Sites Date Received: 10/26/01 Grid Openings Analyzed: 6
Project Sample No.: 30 Average Grid Opening: 106.09 um
Air Volume: 130C liters Total Area Analyzed: 0.0674 mm2
Filter Type: MCE 25 mm dram. , Pore Size: 0.45 um Analy:)cal Sensitivity: 14.8 s/mm2 Effective Area: 385 mm2 0.3044 s/cc
---------------------------------------------------------------------------------------------------------------------------------- FIBROUS PARTICULATES ANALYZED Number Observed CONCENTRATION Total Single Matrix Total. Struct. Filter Air Fibers Bundles Clusters Struct. Struct. >=5um Struct/mm2 Struct/cc nam/m3
Chrysotile Asbestos 0 0 0 0 0 0 0.0 0.0000 0
Amphibole Asbestos 0 0 0 0 0 3 0.0 0.0000 0
Ambiguous 0 0 0 C 0 D 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.
1 Analyzed by: Report Reviewed by:
Marek Peysakhov Michael A. Gorycki, Ph.D. I Director of Electron Microscopy
1 NYC-WTC 000104379
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Summary of ambient air sampling and visual observations at 105 Duane Street following the WTC collapse.
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