Air quality test reports cover letter, Jan 2002

NYC-WTC_000105095 ENVIR CONSUL LAP #11681 AP #2005310 OSCIENCE —s_ TEM AIR SAMPLE RESULTS | TANTS, INC, [UEXE Th "SAMPLE DATE: Tech Clean PROJECT NAME: AMEX 22 Thantes MA, New YORK 11779 8th Floor SAMPLER: B. Gallagher CLIENT #: 06-10233 CUSTODY #: B-05-07 ” September 24, 2001 SMITHTOWN AVENUE RECEIVED DATE: September 25, 2001 RONKONKO Ambient PHONE: (631) 5803191 AREA: MILE: (631) 580-3195 ° ENVIROHEALTH.ORG ‘Sample # i _Sample Location Start { End {Run Time) Flow Ratel Volume | Filter Conc.| Sensitivity | minutes Avg. Liters | S/mm2 Sécc Sicc meee ee oe ed TEM AG | Room 806 by offset press . 15:28 5 18:44 19% i 3 1764 0.0 0.0027 <Sensitivity _Air Cons, | { | TEM A7 iRoom 80 1530} 18:35 | 185 8.5 1573 | 9.0 0.0031 <Sensitivity | TEM A8 | Room 805 by front door 15:33 | 18:40 187 15 1403 0.0 0.0035 _ <Seasitivity. TM AlU!By TEMAS, ‘Hallway by men’s room 18:36} 18:35.) 479 9 1631 0.9 0.003 _- <Sensitivity 15:38 | 18:58) 197 3.5 1674 0. 6.0029 <Sensitivity | TEM Alt Outdoors, n ‘<Sensitivity northwest comer of office. 16:20 | 20:40 | 280 5 -} 1400 0.0 | 0.0035 ee Ses se epee ee ee te te ele re a es on tel i { t t \ i ? Analyzed by Samples were analyzed us: Diffraction (SAED), and Ei Concentration on the filter the effective filter The data pertaining ta the The aic filter concentrati © Bie’ ¢ concentration. This report may not be reproduced without the express permission of Enviroscience. This report can not be used to claim socusacy of th endorsement The samples c action is eecidered A result of zero structures S=Ashestos structures,co-cubic centimeters, mm=millimeter <= lesa than, Flow Rato in liters per minute ing Philips 400T Transmission Electron Microscope. Asbestos identification is determined by the morphology, visual Selected Area Electron ementa! Analysis using an Energy Dispersive X-ray Analyzer (EDAX). is catculated by taking the number of asbestos structures and dividing by the area analyzed. Air concentration is calculated by multiplying . area (ERA) by the filter concentration and then dividing by the volame of air collected in cubic centimeters (cc). se calculations can be found on the Asbestas Count Sheet. ion relates only to air fiber content. When samples are submitted by an outside agency for analysis, Envixoscience. can only guarantec the ts by NVLAP or any agency of the U.S. Government. in the response action asea demonstrated a filter concentration of asbestos less than seventy structures per square millimeter. This respoase oraplete according to EPA 40 CFR 763. per square millimeter is only applicable to the area analyzed. Test results only reflect conditions at the time samples were taken. 89/28/2881 16:14 6315893195 ENVT ROSCIENCECNSL TAN PAGE 28 NYC 9/11 Public Portal Document