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NYC-WTC_000221605

Label derived from the City's folder field. The City does not supply document titles.NYC-WTC_000221605
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NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Name: NTC BOE Volume (liters): 1920 Lab Group #: 7353 Filter Type / Filter Area: MCE 385 mm- Lab Sample #: 1 Grid Opening Size: 0.01124

Client Sample #: 01 Area Examined: 0.04496 mm’

GRID BOX: Magnification: 20,000 GRID ID: Accelerating Voltage: 100 K.eV, # Grid Openings: 4 Analysis Date: 4/7/02

Analysis Performed By: MICHAEL GORYCKI

GO. Structure Structure Type Length ID of Structure Norv EDS INonadb No F B C M >=05 p >=5iJ Chrys Amphibole Nonasb Ambig/ND No Coord Elements) <5p

'Z A V

Struct = > 0.5g >5:1 Aspect Ratio Grid acceptance:

\i= Positive diffraction pattern properties conforming to <50% undissolved filter, overlapped or folded Totals laboratory ideniification criteria observed <10% particulate coverage >50% coverage ate least 20 unfolded or overlapped grid squares <5% F B C M >5u \'= EOS spectrum conforming to laboratory holes or ooaque areas identification criteria observed Chrysotile A.MPHIBOLES Amphibole F = Single Fiber Amosite 3 = Bundle (<3 fibers <1 fiber diameter apart Crocidolite Ambiguous C = Cluster (>3 Intersections) Anthophyllite Non-Asbestos M = Matrix Tremolite Actinolite Non-Identilled j NSD = No Structures Detected

CITY_21MC100_002888433

NYC-WTC_000221605

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NYC-WTC_000221605Source: NYC Law Department, mirrored locally

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TEM Asbestos air sample results, NYC BOE, Dec 2001

NYC-WTC_000184077

Laboratory report documenting transmission electron microscopy analysis of an air sample collected from a New York City Board of Education site in December 2001.

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