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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_000104138
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NYC 9/11 Public Portal Document

I TEM ANALYSIS ATC ASSOCIATES INC. - LP.19 GROUP k S 112 '1 0, ..5 O1 operator Filter Type MC~25mm Lab Sample No. 62263 Filter Area Disk No. Client Spl. No 49 Grid I.C. Comments I.D. EM 10 CItX Ared _0,011 — 2 ~~2 Instrument (GO) Corspd to 70 s/mm'2 a 721 Struct Screen Magnification 16 4O0X Analyzed 6 No. Go to be 80 kV EDS N nr ✓ AcC. Voltage Length I.D. of Structure (Nonasb. Swewro type Arnbig./ND Elements GO. Structure 3p • 5 um > Sum Chr s. Am hibole Nonasb. No Coord. No. F B C M < 5 um

' 51,13-x2- << r

I I 1 1

I apactra Store all unrapeated asbegLos Check diffraction for (lit 4) all structures usin EDS u to 7Os ijtm Idaatlf y structures 5 asbesto° Grid acceptance: Photo No. from L in 1 r. over appscoverage or o e Total$ containing samples) undissolve coverage >S Ratio particulate squares E, B C M > 5um at least O.Sum & > 5:1 Aspect <1O% overlapped Struct. = 20 ed diffraction pattern) ole or opaq ue ocove N. Not Observed (SOS spectrum or conforming unwed Portion diffraction Pattern Properties of filler Chrysotile laboratory identification criteria observed. to pa oi 020 ruflactloaa. Avo/ded portion For ebryaoUlr. 5.75nm at liner repe.t. streaking s`tapir or niter 0.03nm spscrn far Uta Portion of niter (2mm vide) Amphibole or (110) and 1 30) mAeeUOAa' Positive layer lms repeat. and aPPm=. oubJect to amPaibelea: O.55nm spot spacing to examination Par 1.~rar line p° 5.5 ratio of son-tv"m Ambiguous opal dUlaon (5.5:tem). layer Una PljIBOLE6 W laboratory ~ Y~~ spectrum conforming ✓' EDS observed. ritpmoelte IdenU cation criteria Non asbestos p. Single Fiber (1-3 lataraer dia = 1-3 fibers) 25mm niter rocidolite P (than<1 flba diameter start) FA thophyllite B= Bundle S>9 senvpina isle"

NYC-WTC 000104138

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NYC-WTC_000104138Source: NYC Law Department, mirrored locally

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