NYC Law Department release
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← Document results/DEP Box 36/105 DUANE ST 1001650, 151/1
Document / 294 pages

Ambient air sampling report for 105 Duane Street, Feb 2002

Machine-extracted title · confidence 98%

Summary of ambient air sampling and visual observations at 105 Duane Street following the WTC collapse.

NYC-WTC_000104027–000104320

Folder label: “105 DUANE ST 1001650, 151/1

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Scanned page image, NYC-WTC_000104189
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NYC 9/11 Public Portal Document

- TEM ANALYSIS ATC ASSOCI ATES INC. LAB GROUP # 5761 - 10/25 O1 Operator mm Filter Type MCE 25 62178 Lab Sample No. Filter Disk No. Client Spl. No. OS Grid I.D. Comments Instrument I.D. EM 10 CRX (GO) Area Arei 5;~ Cors d. to 70 s mm .. 16 400X ( 4.721 Struct. Screen Magnification No. GO to be Analyzed 6 EDS Acc. Voltage 80 kV x or ✓ I.D. of Structure (Nonasb. Length Elements Structure gtructure Type Nonasb. Ambig./ND G0. um Sum Chr s. Am hibole No Coord. No. F B C M

I I I I P

I asbas Cheek dl[[natlon for struoturae udng BDS igtm (let 4) (daatiry all etructuree u to 70s c Photo No. trrom _ a ..Leetne_ .c.. pill r. over appoa or wwa~ Q is cont a ining samples) <nOx un coverage >50 coven ■ uana pect Ratio <to% part►culate overlapped gild 9 Struct O.Sum & > 5:1 As least 20 unfolded or d/ffraction pattern) at ue arou N. tram or <5% holes or o • Not Observed (SOS .pre conforming unused portion Pattern PreerrUee Chrysotile Positive dlrfraatlnn Identification criteria( O renec • of niter to Laboratory for (020) renucLLone. of fill portion ohrpuotiln: 0.73nm suaoi repea4 draaltlag (liter For the layer lae 0.59nm special for rerlaouen.. of Amphibole Portion of inter (2mm side) of (110) sad (130) layer Iln+ rpou4 an spPr°a• zarni- to les: O.a7arn 'peel^g b examination For 110 01 Lwinned k r Cue spot 3.5 lay °r ( .a3nm). Ambiguous Ilse repeat dlelaan t•~r to to laboratory AMPH 19oLES 8DS ■ true conformingobserved. Amoslte idenU icatlon criteria Non_asbestolus intereer as = 1-3a alters) 2aarm inter Crocidolite F= Single Fiber (1-9 apart) riban <1 fiber diameter 9lopping Rule+: pnthophyllite 8= Bundle ~» .._ rlu+trr >9 In teneetlon+) , c n. Tiernolite Vnn-Identifie d

NYC-WTC 000104189

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NYC-WTC_000104189Source: NYC Law Department, mirrored locally

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