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

Page image
Scanned page image, NYC-WTC_000104129
OCR text

OCR status: ok · source: pdftotext

NYC 9/11 Public Portal Document

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TEM ANALYSIS ATC ASSOCIATES INC. - Operator Filter Type MCE 25 mm Lab Sample No. 62252 m "2 / palter Area 3B isk No. Client Spl. No. 38 Grid I.D. ~RX Comments 01 Instrument J.D. EM I (GO) Area 0 O1 ..4 mm"2 d. to 70 SIM- 4.121 Struct. Cors Screen Magnification 16 400X 6 No. GO to be Analyzed Acc. Voltage 80 kV EDS I.D. of Structure N er ✓ (Nonasb. Type Length GO. Structure Structure I L No Coord. No. F B C M 0.5 um < 5 um Sum Chr s. Amp hibole Nonasb. Ambig. / ND Elements

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I I I I I I II I (lot 4) J in o asoeawa- `- Phato No. [tom 1samPlea) -- - rid acceptance: "" "'_ - r. over app or e e Totals containing <5a% undiaaoly coverage >50% coverage O.Sum & > 5:1 Aspect Ratio <10% particulate grid squares overlapped Struct. = least 20 unfolded or diffraction pattern) at N. Not Observed (SOS apectram or <5% holes or o n ue areas properties conforming Unaasd portion Pwltive d►ttncLLen pattern IdenUfiCaUon criteria observed. of filter Chrysotile to laboratory (020) Uof li Molded portion 0.73am .paofn( for ii ~~ra For chrpaoUle the l ger 11ne repeal. filter O.fi3 ab spaolog for renaau°o.. Portion of filter (2mm aide) Amphibole of (110) and (130) repeal. sad .pores. of io 0.03am layer IIns For amPblbolssi taper line spot .pacing eaamleation 3.5ratio of non-telaaad distance (0.03em)• layer line re peat Ambiguous ✓ AMPHIBOLES conforming iteria bs to laboratory SOS .ppectram idenUfleatlon criteria nbeerved• Amosite Non —asbestos pben) 25mm filter Croeidolite P= Single Fiber (1-3 intereecUona fiber = 1-3 diameter apart) P1pn~Irr Anthophyllite B= Bundle (>3 fiber' <1 Rne. .2 NYC-WTC 000104129

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NYC-WTC_000104129Source: NYC Law Department, mirrored locally

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