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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_000104524
OCR text

OCR status: ok · source: pdftotext

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Name: ATC Volume (liters): 1606 Lab Group #: 6217 Filter Type "Filter Area: MCE 385 mm= 5 Grid Opening Size: 0.0112-1 Lab Sample #: 007 Area Examined: 0.05b2 mm- Client Sample #: GRID BOX: Magnification: 20.000

GRID ID: 7— c'. -y Accelerating Voltage: 100 KeV # Grid Openings: 5 Analysis Date: 12,2801

y ~ Analysis Performed By: MARK PEYSAKHOV

Structure Structure Type Length ID of Structure Nor 'J EDS GO (Nonasb No F 6 C M >=05 P >=5N Chrys Amphibole Nonasb AmbigiND Elements) No Coord <5u

I I i I I ~ I

I I I

j I I I i

I I ~ j I I I

I I I i i I

Strucr = > l).5µ - 5: 1 Aspect Ratio Grid acceptance: <50°° undissolved filter. ovenaooeo or fotaee Totals _Positive diffraction pattern orocerties conforming :o <10% particulate coverage >50% coverage ate laooratory identification criteria observed least 20 unfolded or overlapped gnu squares <5% F B j C ! M I >5u v= EDS spectrum conrorming to laooratory holes or opaque areas identification cnteria observed Cluvsotile .AMPHIBOLES Amphiboie 'Single Fiber Amosiie Crocidolite I Ambiguous 1 j 5 = Bundle (<3 fibers <1 fiber diameter apart 'Cluster (>3 !ntersecttonsl Anthoonyllite Non-Asbestos Tremolite M = Matrix Actinolite Non-Identified NSD = No Structures Detected -_ _

NYC-WTC 000104524

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NYC-WTC_000104524Source: NYC Law Department, mirrored locally

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