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← Document results/DEP Box 02/86 TRINITY PLACE Block: 51 Lot: 13
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Asbestos TEM air sample results, 86 Trinity Place, Sep 2001

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Laboratory report showing transmission electron microscopy results for asbestos in air samples from September 19, 2001.

NYC-WTC_000094523

Folder label: “86 TRINITY PLACE Block: 51 Lot: 13

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NYC-WTC_000094523 ENVIRO CONSULT. THTOWN AVENUE , NEW YORK 11779 63 1) 580-3191 CSIMILE: (6:31) $603 195 ENVIROHEALTH.ORG RONKONKOMA AP & 11681 P #20053 1-0 To SCIENCE TEM AIR SAMPLE RESULTS ANTS, INC. Tech Clean American Stock Exchange 86 Trinity Main Trading Finor 00-10233 SAMPLE DATE: September 19, 2001 SAMPLER: CUSTODY #: Page 3 of 3 RECEIVED DATE: September 21, 2001 L. SavaresefC. Gilbert B-04-06 | Sample # | Sample Location TEM 3.1 {Run Time | Flow Rate! Volume _ Minutes Moor, Roum. 12-( "TEM P24: Hany TEM P26 | Harry Post Post. 27, Location 18 ost 27 Al Avg. Liters Filter Conc. Simm2 Sensitivity a Air Conc. Sicc Sicc 1201. 10 1200 ‘<Sensitivity <Sensitivity. 135 | 10 | 1200 135 10 1350 0.0 _ 0.0041 0.0 9.0035 <Sensitivity. 26, Location 30 135 _J0 | 1350 0.9 0.0035 <Sensitivity 25, Column 21 TEM F27! Harry Post 25, North Column 1 1 t ' i é i fae a we ee Analyzed by: Samples were me Diffraction (SAED), Concentration on ibe fi filter Date Analyzed: ate Stefi sew amrage I H se ee eee tf 1 135 ig 1350 Te i te tenn erm te Se 138 10 1350 99, 0.0 | 0.0035 0.0035 we. <Sensitivity <Sensitivity S=Asbeatos structures, coxcubic centimeters, mm«millimeter <= less than, Flow Rate in liters per minute sing Philips 400T Transmission Electron Microscope. Asbestos identification is determined by the morphology, visual Selected Area Electron ‘Elemental Analysis using an Energy Dispersive X-ray Analyzer (EDAX). is calculated by taking the nymber of asbestos structures and dividing by the area analyzed. Atr concentration is calculated by multiplying the effective filter area (EFA) by the filter concentration and then dividing by the volume of air collected in cubic centimeters (cc). ‘The data pertalning ¢o these The ait fiher concentra! accuracy of the filter concen endorsement of products by The samples collected in action is considered comple: A result of zero structure: calculations can be found on the Asbestos Count Sheet. NVLAP o¢ any agency of the U.S. Governmeat. te according to EPA 40 CFR 763. on celates only to air fiber content. When samples are submitted by an outside agency for analysis, Enviroscience. can only guarantee the tration. This report may not be reproduced without the express permission of Enviroscicace. This ceport can not be used to claim the response action arca demonsuuted a filter concentration of asbestos Jess than seventy structures pee square millimeter. This response 2 per square millimeter is only applicable to the area analyzed. Test resalts only reflect conditions at the time samples were taken. 69/28/2861 1@:1¢ 6315885195 ENVIRO ey fo CIENCES}. SLTAN FAGE NYC 9/11 Public Portal Document

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NYC-WTC_000094523Source: NYC Law Department, mirrored locally

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