Ambient air sampling report Book Two for 105 Duane Street,

NYC 9/11 Public Portal Document

r TEMM Asbestos (air) Count Sheet . Client \ame: ATC Volume (liters): 1200 Lab Group #: 6053 Filter Type! Filter Area: MCE 335 Lab Sample #: =1 Grid Opening Size: 0.01 124 Client Sample n: 04 Area Examined: 0.06-44

GRID BOX: 1 )Magnification: 20,000 GRID ID: Accelerating Voltage: 100 hey # Grid Openings: 6 Analysis Date: :1.601

U Analysis Performed By: MICHAEL GORYCKI

GO. Structure Structure Type Length c of Stn cture Nor v I _Os No F S C M >=Q5 N Amoniboie !Ncnacb >-Sp Chrys Nonasp Amoig/ND No Coord <5t Elements'

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Jtruct = > 0.5µ > ;: I .Asoe : ino una acceptance: i= positive diffraction pattern properties contormtng :o <50% unaissotvea filter, ovenaoceo or roiaeo Totals aboratory identification criteria ooserveo <10% particulate coverage >0% coverage ate least 20 unfoidea or ovenappeo gno squares <5% F B C M! ^u v= EDS soecrum conforming tc aooratory holes or opaque areas ~aentification criteria observes Chrisoole I AiIP9IBCLES Amphibote F = Single Fiber Amosite 5 = Sunale i<3 fibers < giber aiameter apart Croc,dclite Arnbxi'uous : ,usier !>s ntersec ions, Anthconyilite Non-.Asbestos

I `remoiite M = Matrix N on- identinea Acttnotite NSD = No Slruc:ures ue!ectea

NYC-WTC 000104466