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← Document results/DEP Box 36/105 DUANE ST 1001650, 151/1
Document / 231 pages

Ambient air sampling report Book Two for 105 Duane Street,

Machine-extracted title · confidence 98%

Second volume of ambient air sampling and visual observation results for 105 Duane Street after the WTC collapse.

NYC-WTC_000104321–000104551

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

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Scanned page image, NYC-WTC_000104490
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NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet I I Client Name: Lab Group #: ATC 6263 Volume (liters): Filter Type / Filter Area: 1450 MCE 385 mm= Lab Sample #: 1 Grid Opening Size: 0.01124 Client Sample #: 01 Area Examined: 0.0562 mm= GRID BOX: . 7 " Magnification: 10,000 I GRID ID: Accelerating Voltage: 100 KeV I # Grid Openings: 5 Analysis Date: 1/4/02

Analysis Performed By: 11 ROMAN PEYSAKHOV

GO Structure I Structure Type Length ID of Structure IN or EDS No F B C M >=05 a >=5N Chrys Amphibole Nonaso Ambtg/ND (Nonadb

IP No Coord <S Elements]

1/ z1 1/

1 I I

1 I 1 I

1 1 1 I I I 1 Struct = > U.5µ > 5: I Aspect Ratio v= Positive diffraction pattern prooenies conforming to I i Grid acceptance: I II

<50% undissolved filter. overlapped or folded I

Totals <10% particulate coverage >50% coverage ate

1 aooratory dentificanon criteria observed least 20 unfolded or overlapped grid scuares <5% %i = EDS spectrum conforming to laooratory holes or opaque areas F B li C M >du !dentificatlon criteria observed Chrysotile - I AMPHIBOLES Amphibole 1 F = Single Fiber B = Bundle j<3 fibers <1 fiber diameter apar. - = luster (>3 Intersections] Amosite Crocidolite Anthophyllite Ambiguous 1 Non-Asbestos Tremolite

1 NI =Matrix NSD = No Structures Detected Actinolite I Non-Identified I

NYC-WTC 000104490

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NYC-WTC_000104490Source: NYC Law Department, mirrored locally

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