Ambient air sampling report for 105 Duane Street, Feb 2002

NYC 9/11 Public Portal Document

- TEM ANALYSIS I ATC ASSOCIATES INC. 7 LAB GROUP 076 —'~ 0 " 5/01 Operator ~P 25 mm Filter Type MCE 62213 Lab Sample No. Filter Area 395 mm2 j57 IJ / Disk No. Client Spl. No. 40 Grid I.D. '7 Comments CRX Instrument I . EM 10 (GO) Area d. to 70 s/mm~2.' 4,721 Struct. Cors Magnification 16 400X Analyzed 6 Screen No. GO to be BO kV EDS Acc. Voltage Nor,/ I.D. of Structure (Non S Length ND Elements GO. Structure Structure Type Nonasb. Ambig./ um Chr s. Am hibole 3 5um No Coord. No. F B C M

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I Li] Li] J win HOS Chi (let 4) Identify all atruclure. Photo No. from 1 in 5 sample.) aebestoe- rid accepptance: <SOx undiewlra ar, o otal containing O.Sum & > 5:1 Aspect Ratio <10X parUculale covaragoverlapped --- grid squares Struct = leant 20 unfolded or spec tram or dlfrr.ctlon pattern) at holes or o • ve areas Na Not Observed (ED$ <57L proPertias conforming Unused portion Chrysotile pwtUva dltfncLLoa p•tiara obsenea. of filter t/4 ideaUflcaUoa criteria to laboratory for (010) 01. avoided PerUea chrysoUtn 0.7Snm sp.ofoc pe t. ~ ntr~eaalaa For for the Igor line ra of niter 0.07am "act"(120)rarleeue03. (2mm vide) Amphibole or (tto) and and apPra a. Ps tine or mtar amPelbatee od7nm taysr tine r.psat. tine f b For layer line spot Spacing to esamlaaLLoa aoa-lvinMd 3.4 ravo of p.at distance (0.08om). t.yer it. r Ambiguous 7Ath.phyllit. IiIEo1.Es BDS Spaatrum ortt.rla conforming to laboratory lden lcatioo observed. moatte Non—asbesto (t -a intnrsacuone o t -a fibers) 20mm ntt■r cidolite pfl Single ribs bers <1 fibr diameter apart) S= Sundt. (>3 fi St 10 S la.: l tntnecUons) rA m olite _r tA n t.ified NYC-WTC000104223