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 / 294 pages

Ambient air sampling report for 105 Duane Street, Feb 2002

Machine-extracted title · confidence 98%

Summary of ambient air sampling and visual observations at 105 Duane Street following the WTC collapse.

NYC-WTC_000104027–000104320

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

Page image
Scanned page image, NYC-WTC_000104290
OCR text

OCR status: ok · source: pdftotext

NYC 9/11 Public Portal Document

ATC ASSOCIATES INC. - TEM ANALYSIS LAE GROUP 4 5759 - :J _5 3L Lab Sample Nc 52= F:_:e_ Type MCE _= mm oo_erat:.r Client So: Nc 23 Filter Area 395 nm2 Instrument I . 0 EM ` .CR:r Grid I . 0. L:sk Nc . Screen Magni:ication L5 -130'X 'CC I Area O. J 12 mm" Comments Ace. Voltage 80 kV No. GO to be Analyzed 4.7"'' Strcc: oropd .., ' -n mm

GO. Structure Structure Type Length LD. of Structure N or/ EDS No Coord. No. 3U.5 um (N ernent , 5um F B C M < 5um Chr ys. Amphibole p Nonasb. Ambi g./ND Elements

J p /:F —v

I ~

- Photo No. ((rom 1 in 5 asbestos- Identify all structures using EDS Check diffraction for asbestos Store all unreneated eoectra~ containing samples) IGrid acceptance:I structures up to 705 thm (let 4) Struct. _ > 0.5um & > 5:1 Aspect Ratio <S0% undiseolved filter, overlapped or folded <10% particulate coverage >50% coverage N- Not Observed (EDS spectrum or diffraction pattern) lat least 20 unfolded or overlapped grid squares Totals <5% holes or opaque areas ✓n Positive diffraction pattern properties conforming to laboratory Identification criteria observed. Unused portion Par ehrysetiir. 0.73nm opacing for (020) resection.. of niter Chrysotile 0A7nm spacing for the layer Une repeat. streaking Aroidad portion of (110) and (190) reflections. of flitar For amphiboles: 0.33am layer line repeat. and approa. Porubs of niter (2mm wide 3.3 ratio of non-twinned layer line spat spacing to aubiect to esammauoa ) Amphibole layer line repeat distance (0.39nm). ✓= EDS spectrum conforming to laboratory o Ambiguous identification criteria observed. AMPHIBOLES to F= Single Fiber (1-3 Intersections = 1-3 fibers) Amoelte 8= Bundle (>3 fibers <1 fiber diameter apart) 25mm filter I Crocidolite Non—asbestosr

r C= Cluster >3 intersections) ^_f M= Matrix StoPP in[ Rule.. I Anthophyllite I NSD= No Structural Detected >30 ./c.0. or in let c4C.D. ~ Tremahie la\DATA\PRIYATE\MlXEC\CADD\TEM2 0/22/08 Actin olite Non-Identified

NYC-WTC 000104290

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

NYC-WTC_000104290Source: 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.

Compare copies and versions →