NYC Law Department release
Independent mirror · updated as the City releases more · v1.2.6
← 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_000104336
OCR text

OCR status: ok · source: pdftotext

NYC 9/11 Public Portal Document

1 ATC ASSOCIATES INC. - TEM ANALYSIS LAB GROUP #. 5710 - 1006 0: ,1 Lab Sample No. 6255 miter Type MCE 2S mm operator(- C' Client Sp1 No. H-2 Filter Area 333 mm" instrument L.D. EM 10 CRY Grid L.C. L! f Disk Nc. Screen Magnification 16,400:( (GO) Area 0. _-'-4 mm" Comments Acc. Voltage 90 kV No. GO to be Analysed o 4.72. Strum Corsad. fl s mr

GO. Structure Structure Type Length I.D. of Structure EDS N or,/ 30.5 um (Nonasb. No Coord. No. F B C M < 5 um 5um 'Chrys. Amphibole Nonasb. Ambig./ND Elements)

to 3 P -Ls

Is' I

I

I

Li

I

I Photo No. (from 1 in 5 asbestos- Th4nufy all structures ucing EDS containing samples) Check diffraction for asbestos Stare all unrepeated spectra J IGrid acceptance:I structures up to 70s trim (let 4) SLrucL = > 0.5urn & > 5:1 Aspect Ratio <50% und&aaolved filter, overlapped or (o1de4 <10x particulate coverage >50% coverage Totals N3 Not Observed (EDS spectrum or diffraction pattern) m t least 20 unfolded or overlapped grid squares <5% holes or opaque areas I F C >j 55 um V/ Positive diffraction pattern properties conforming B M to laboratory identification criteria observed. Unu■ed portion For ebryaetile: 0.73am spacing (or (020) reflections, of (titer Chrysotile 0.33nm spacing for the layer line repeat, streaking Avoided portion of (110) and (130) rerleettona. at filter For amphtbales: 0.53am layer line repeat. and apps.. Portion of (liter (2mm wide) 3.3 ratio of oon-tetnnad layer line spat .pactng to sttalveL to eeamtnatien Amphibole layer line repeat distance (0.33nm).

1 EDS spectrum conforming to laboratory identification criteria observed. F- Single Fiber (1-3 intersections = 1-3 fibers) Be Bundle (>3 fibers <1 fiber diameter apart) _ (>3 Interaectiona) 25mm filter 7 AMPHIBOLES Amosite Crocidolite Ambiguous g

Non —asbestos ~ Matrix lusts ybopptng awes: Anthophyllite

1 N50= Na Structures Defeated L\DATA\PRIVATE\NlKW\GDDVEM2 [ >3o 's/c.o. or to 1st 4 3.0.

9/22/98 L Tremolite Actinolite Non —Identified

NYC-WTC 000104336

OCR can misread numbers and units. Confirm readings against the page image before using them.

NYC-WTC_000104336Source: NYC Law Department, mirrored locally

Related records

Browse subjects →

Ranked by indexed similarity. Reasons describe shared subjects and filing context; check the source records.

Same-box records

Filed elsewhere

More like this page

Similar subjects in other documents. Similarity does not establish the same event, measurement or conclusion.

Page similarity is temporarily unavailable or this page has no indexed vector.

Buildings in this record

Machine-extracted building matches; verify each source. Buildings, never households.

Others also read

Readers open these alongside this record — through an Ask answer, the same folder, or indexed similarity. Not a claim they are about the same event.

NYC-WTC_000161636 · Box DEP Box 42

Agenda listing panelists from federal agencies, unions, and city departments for a March 2004 conference on post-9/11 air quality.

Cited alongside this record in an Ask answer

Compare copies and versions →