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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 20, 2001.

NYC-WTC_000094529

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

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NYC-WTC_000094529 © ENVIROSCIENCE CONSULT: NVLAP #2005310 7 0 SMITHTOWN AVENUE RONKONKO! ONE! (631) 560 3191 FACSMILE: (631) 5803195 WWW.ENVIROHEALTH.ORG ‘ANTS, INC. PROJECT NAME: MA, New York 11779 AREA: CLIENT #: ELAP # 11681 TEM AIR SAMPLE RESULTS 65 Broadway 17th Floor 00-10233 SAMPLE DATE: September 21, 2001 RECEIVED DATE: September 21, 2001 Ambicat SAMPLER: B. Gallagher CUSTODY #. B-04-05 Sample Location Start | Fad Run Tims minutes Flow Rate! Volume | Filter Conc. | Sensitivity Air Conc. Liters S/nm2 Sicc ___Stee 12:15 | 02:55 160 1200 06 Sensitivity | cule area 12:16 | 02:54 Sein pata es eerie SE 12:15 | 02:59 Is 164 1394 | 0.0 | <Sensitivity <Seasitivity 12:10 | 02:58 168 end reception 12:05 | 62:58 | 173 1512 0.0 i471 | 00 <Sensitivity | «<Seusitivity Analyzed by: Samples were analyzed Diffraction (SAED), and Concentration on the fil S=Asbestos structures,cc=enbic centimeters, mm=millimeter Date Analyzed: <= less than, Flow Rate in liters per minute using Philips 400T Transmission Electron Microscope. Asbestos identification is determined by the morphology, visual Selected Ares Electron Elemental Aualysis using an Energy Dispersive X-ray Analyzer (EDAX). tex is calculated by taking the manber of asbestos structures and dividing by the area analyzed. Air comcentration Is calculated by mutitiplying the effective filter areca (EPA) by the filter concentration and then dividing by the volutne of ax collected ia cubic centimeters (cc). The data pertaining (o these calculations can be found on the Asbestos Count Sheet. The air filter concentrati accuracy of the filter endorsement of products by NVLAP or any agency of the U.S. Government, jon relates only to air fiber contest. When samples are submitted by an outside agency for avalysiz, Envirosclence. can only guarantoe the concentration. This report may not be reproduced without the express permission, of Emvicoscience. This report can not be used to claim The samples collected in the response action area demonstrated a filter coucentration of asbestos Jess than seventy structures per square millimeter. This response action is considered A result of zero structure: complete accarding to EPA 40 CFR 763. 8 per square millhmeter is only applicable to the area analyzed. Test resnits anty reflect conditions at the time samples were taken. O9/25/2881 16:14 6325893195 ENVIROSCIENCECNSL TAN PAGE 23 NYC 9/11 Public Portal Document

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NYC-WTC_000094529Source: NYC Law Department, mirrored locally

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