Ambient air sampling report Book Two for 105 Duane Street,

NYC 9/11 Public Portal Document

TE I Asbestos (air) Count Sheet Client Nance: ATC Volume (liters): 1200 Lab Group *: 6053 Filter Type Filter Area: LICE 3.S= mm Lab Sample r: 2 Grid Openin2 Size: I).0; ;' Client Sample #: 02 Area Examined: 0.06 -L4 mm GRID BOX: c 6'y Magnification: 20.000

GRID ID: _____ Accelerating Voltage: 100 Key # Grid Openings: 6 Analysis Date: .h, 0 1

Analysis Performed By: /\._-' MICHAEL GORYCKI

GO. Structure Structure Type Length C at aructure N or v HCS (Ncnadb l`IO F B C M >=05 a >=5µ Chrys i .amonibote Nonaso Amoig;NC I No Coord <5u Elemental

5 lt I T I

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3trua = % 0.5 u > _ . : .-><soec: Ratio 3na acceptance: i= Posinve aiffraction pattern orooemes contorming to <50% uncissoivea Filter, ovenaooea or oicea Totals laboratory iaennfication c ttena coservea <10% aarocuiate coverage >50% coverage ate least 20 untolaea or ovenapped gna squares <5'6 F B !V( ^u 1= EDS spectrum :ontorminc :o'acoratory holes or opaque areas aentiricatlon cntena ooservea _ _ l htysottie .A MPHIBOL=c Ammnlboie • = Single Fioer ?mosrte • B = Bundle <1 nbers " 'fiber 7iameter apart ::, cc:aolite _`\InuIL_"uous

C = %uster ;:' Intersecnonsi 4.ntnoonvilite \ion-Aanestos Actino remciite M ='/lamx _ — van-tdeaniiea ~c;inc i i te NSC = No 3iructures ~etec:ec _

NYC-WTC 000104464