Air quality test reports cover letter, Jan 2002

NYC-WTC_000105123 ENVIROSCIENCE CUIENT: Te S : . 1 CONSULTANTS, INC. ch Clean AMPLE DATE irae 200 RECEIVED DATE: September 21, 2001 PHONE: LAP # 11681 NVLAP #2005310 ee SMITHTOWN AVENUE RONKONKOM. (G31) 580-3193 tae sore tt . +, FACSIMILE: (631) 5803195 AREA: Main Trading Floor SAMPLER: L, Savarese/C. Gilbert WWIW.ENVIROHEAL TH. ORG TEM AIR SAMPLE RESULTS PROJECT NAME: Ametican Stock Exchange A, New York 11779 86 Trinity CLIENT #: 00-10233 CUSTODY #: B-04-06 Sampic Location Stat | End | Run Time Flow Rate Volume | Filter Conc.) Sensitivity Air Conc. i Sample # minutes | Avg. Liters Stmm2 Ske Slec __ co wee ee cme ee nee loor Post 5 #10 6:20 | 8:20 110 10 3200 0.0 0.0041 <Sensitivity | i_TEM F2 (Trading r3 {TEM F_ [Trading Fl TEM F3 | Main Trad Floor Post 12 #14 _.. 4 6:30; 8:30 4 120 5 18 1200 00 0.0041 <Sensitivity e Floor Post 8, Section 1 635; 840!) 25 | 10 1250 0.0 0.0039 <Sensitivity _TEM F4 | Main Trade TEM F5 | Main Trade Floor, Upper Level, Section E, Monitor 16 TRM F6 [Red Room Post 21, MF 39 ; 7:00 i 9:00 120 10 1200 9.0 0.0041 |e Floor Post 9, Section E 6:25 | 8:42 | 137 10 13770 | 90 | 0.0035 _| 1 6:30: 8:55; 145 | 10 | 1450 0.0 0.0034 Sensitivity <Sensitivity |. : ae hn <Sensitivity TEM F7 {Red Room Post 22, Section A __ 6:45.) 8451 120 7 10 f 200 | 00 0.0045 TEM F8 | Red Room Post 22, MF 15 ; 7:00 | 9:15 435 10 1350 0.0 0.0035 <Sensitivity TEM FS j 15th Floor TEM S10) 15th Floor 9:20 ; 14:20 220 10 1200 0.0 0.0041 gas itizo| sus | 10 | 1250 | 00 | 0.0039 oo TEM Fil | 15th Floor | <Sensitivity <Sensitivicy <Sensitivity | 11:40 | 120 19 1200 0.0 0.0041 <Sensitivity . . 9:40 — S=Ashestos structures,ccecubic centimeters, oumesillimeter Analyzed by: Etat A. Se _ Date Analyzed: Zz Soa <= fess than, Flow Rate in liters per minute Samples were analyzed using Philips 400T Transmission Electron Microscope. Asbestos identification is determined by the morphology, visual Selected Arca Electron Diffraction (SAED), and Elemental Analysis using an Energy Dispersive X-ray Analyzer (EDAX). Concentration ca the filter is calculated by taking the number of asbestos structures and dividing by the area analyzed. Air concentration is calculated by multiplying the effective filter area (EF. The data pertaining to The ais filter concentra’ A) by the filter concentration and then dividing by the volume of air coftected in cubic centimeters (cc). these calculations can be found on the Asbestos Count Sheet. tion relates only to sir fiber content. When samples are submitted by an outside agency for analysis, Enviroscience. can only guacantec the accuracy of the filter concentration. This repart may sot be reproduced without the express permission of Enviroscicnce. This ceport can not be asod to claim endorsement of products by NVLAP or any agency of the U.S. Government. The samples collected action is considered compl ~~ gtructures per in the response action area demonstrated a filter concentration of asbestos less than seventy structures per square millimeter. This response ete according to EPA 40 CFR 763. square millimeter is only applicebie to the area analyzed. Test results only reflect conditions at the time samples were taken. 93/28/2881 18:14 531E8@3195 ENY IROSCIENCECNSL.TAN PAGE 13 NYC 9/11 Public Portal Document