Air sample results cover sheet, Sep 2001

NYC 9/11 Public Portal Document

ENV1ROSCIENCE TEM AIR SAMPLE RESULTS Teat Clean SAMPLE DATE: September 19, 2001 CONSULTANTS, INC. Page 1 of 3 T NAME: American Stock Exchange RECEIVED DATE: September 21, 2001 2150 SMf rHITOWN AVENUE RUNKONKOMA. NEwYORK 1 1 779 86 Tcinity F44oNE: (631) 590 .3191 L. Savarese/C. Gilbert Main Trading floor SAMPLER: FACSIMILE: (631) 5603195 WWW.ENV1ROHEAI.TH.ORG 00-10233 CUSTODY # [LAP# 11601 NVLAP #2005310

Sample Location _ Start Imd. Run Titne flow Rat_• Volume Filter Couc. Sensitive Air Cone. ~minutcs Av . Liters Shnm2 Slcc S/cc TEM Fl Trading Floor Post 5 #.t0 i 6.20 8:20 ( 110 t 10 I 1200 0.0 0.0041 <SenaetivI T'FM F2'Trading F1onr Post. 12 #14 ........ . ... . ......630 8:3........20 ~ iQ 1200 0.0 0.0041 <SensltevlJy ii TEM T3 Main Trade Floor Post 8,_Section L._..._._.. ._._....~ ..._ _.__ _ ._ _ 635 8:40 125 I 10 1250 U.9 0.0039 <Sensitivity '1MM F4 i Main Trade Floor Post 9. Section 1✓ (E25 42 1 137 t 10 1370 0.0 4.•_-_ <Sensitivi Trade Floor, Upper Level, Section E, Motvtor l6 _._ 6:30 . 855 . 145 10 1450 0.0 0.0034 eSepsitiv V 7:00 9:00 ~ 120 10 I 1200 0.0 __ 0.0041 eSeosltevil~ _ TRM F7,,Red-Room Post 22, 5ectton..A. _-- . -- _ - . ..... __. ... . j_ 6;R3 I E:45 _12t1. -_ •.._ 10 .. _ ...1200) O7..._ Q_004I <Sensi@viE+ TEM F8 ! Red Room Post_ 22, MIT l5 7.00 915 I35 i 10 1350 ! 0.0 -0 0035 <Sensdrivi l 11:20 0.1) 0.0041 TEM F951 th Floor _-.... _..- -_------- -•---_...... . . ._-_._ _..... _.._..._.~ _ 9:20 120 1 10 1200 cScnnittvity TEM r 10 15th floor 935 1130 I 1I 10 i 1250 0.0 00039 <Scnsitivl 9:41) 11:40 120 10 ' 1;200 0.0 1 0.0041 <Sensitivi S=Asbestos .tructures ccntimeturs~ mmarnillimeter Y bY': L~y%../r i' "~• .lJ `/t~</ `- ` Analyzed Date Analyzed: Vi7.2'~ <_ less than, Flow Rate in liters per minute Ssalples were analyzed using Philips 400T Transmission Electron Microscope. Asbestos identification is determined by the mcwphology, risad Selected Area Electron I),ffraction (SAED), and Elemental Analysis using an Energy Dispersive X-ray Ansly2er (EDA)). Conoentratioo on 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 (liter area (EPA) by the tiller concentration and then dividing by the volume of air collected in cubic centimeters toe). The data pertalning to these calculations can be found on the Asbestos Count Sheet. The air filter corlocatzuthm relates only to air fiber consent. Whcn samples are submitted by an outside agency for analysis, Env rescience. can only guarantee the accuracy of the filter concentration. This report may not he reproduced without the express permission of Enviroscienee. This report can not be used to claim r endorsement of products by NVLAP or any agency of the U.S. tloveenment The samples collected in the response action area demonstrated a filter concentration of asbestos less than seventy structures per square millimeter- This response w action is considered complete according to EPA 40 CTR 763. A result of zero structures per square millimeter Is only applicable to the area analyzed. Test results only reflect conditions at the time samples were taken.

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