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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_000104480
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OCR status: ok · source: pdftotext

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Name: ATC Volume (liters): 1300 Lab Group #: 6159 Filter Type ! Filter Area: MCE 38- mm= Lab Sample #: 3 Grid Opening Size: 0.01124 Client Sample #: 06 Area Examined: 0.06-4.4 mm= GRID BOX: _ Magnification: 20,000 GRID ID: _ __ ___ Accelerating Voltage: 100 KeV # Grid Openings: 6 Analysis Date: 12/20/01

Analysis Performed By: MARK PEYSAKHOV

GO. Structure Structure Type j Length j ID of Structure N or EDS (Nonadb No F B C M '=05 a >=5u Chrys Ampmbole Nonasb Amotg/ND No Coord <5u I I Elements)

I I ___ ___ ______ _________t______ i I j

I i i I I I ! I

Struc: = > 0.5u > 5 1 Aspect Ratio Grid acceptance: v = ?ositive diffraction pattern properties conforming to <50% undissolved filter, overlapped or foiaed Totals aboratory icentification criteria observed <10% particulate coverage >50% coverage ate least 20 unfolded or overlapped gno squares <5% I F B C M >51.i EDS spectrum conformng to laooratory holes or opaque areas Identification cntena observed Chrysotile AMPHIBOLES mp Amphiboie F = Single Fber Amostte B = Bundle (<3 fibers <1 fiber diameter apart Croctdolite Ambiguous C = Cluster I>3 Intersections) Anthophvllite Non-Asbestos ! = Matrix Tremolite Actfnolite Non-Identified _ J. NSD = No Structures Detectec

NYC-WTC 000104480

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NYC-WTC_000104480Source: NYC Law Department, mirrored locally

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