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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”

Page image
Scanned page image, NYC-WTC_000104343
OCR text

OCR status: ok · source: pdftotext

NYC 9/11 Public Portal Document

1 ATC ASSOCIATES INC. - TEM ANALYSIS 1 Lab Sample No.

Client Sol. No. H-9 6='553 LAP 32.CUF ti

F: Cer T%-pe MC_ _5 rim

--_er Area 5 mm: Gperator L "

1 Instrument I.D. EM 1C CRY.

Screen Magnification 16.400:'.

Acc Voltage 00 kV Grid I.D.

(GO, Area 7

0.01__4 mm'_

No. GO to be Analyzed _ 4. Disk Nc.

Comments

1 Strucr. Ccrsrd =_ _ s mm

1 GO. No Coord. Structure stricture Type No. F H C M >0.5 um < 5 um Length >, 5um I.D. of Structure ~Chrys.! Amphibole EDS N or/ (Nonasb . Nonasb. Ambig./ND Elements)

1 1 I 1

1 I ~ 1 1 Photo No. (from 1 in S asbestos- Identify all structures using EDS Check diffraction for asbestos Store all unrepeated spectra containing samples) l Gd acceptance: structures up to 70e tiim (1st 4) 0% undioaoived filter, overlapped or folded I Struct = O.Sum & > 5:1 Aspect Ratio Totals 10% particulate coverage >50% coverage Na Not Observed (EDS spectrum or diffraction pattern)lat least 20 unfolded or overlapped grid squares /~ Positive diffraction pattern properties conforming holes or opaque areas I F B C M > 5um to laborabry identification criteria observed. Unused portion For chrysotile: 0.72nm s cin■ for (020) reflections. or ruler Chrysotile 0.33nm spacing far the layer line repeat. ■creaking Avoided portion of (110) and (190) reflections. of filter For amphiboles: 0.33nm layer line repeat and approx. Portion of Otter 3.3 retie of non-teinned layer tine spot spacing to sub7act to esamin.U.. (2mm side) Amphibole

J layer line repast distance (0.S3nm). EDS spectrum conforming to laboratory Ambiguous identification criteria observed. AMPHIBOLES F. Single Fiber (1-3 Intersections = 1-3 fibers) Amoslte 8= Bundle (>3 fibers <1 fiber diameter apart) 23mm filter Crocidolite Non -asbestos C= Cluster (>3 intersections) stoPPina Rules: Anthophvllite 1t= NS0= No Structures Detected >50 ■/ C.O. or n lit 4 G.O. Tremofite L\DATA\PRIVATE\XIKEG\CADO\TEMO Actinolite I Non -Identified Matrix 9/22/98

NYC-WTC 000104343

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NYC-WTC_000104343Source: NYC Law Department, mirrored locally

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