Ambient air sampling report Book Two for 105 Duane Street,

NYC 9/11 Public Portal Document

1 TEM Asbestos (air) Count Sheet I Client Name: Lab Group : ATC ( 226 Volume (liters): Filter Type / Filter Area: 17-= RICE 33 mm- Lab Sample tt: -1 Grid Opening Size: 001124 u Client Sample #: 006 Area Examined: 0.04496 mm-

I GRID BOX: GRID ID: 7Z

# Grid Openings: 4 // Magnification: Accelerating Voltage: 20.000 100 KeV Analysis Date: 12.30-01

I Analysis Performed By: ;N.~ ROMAN PEYSAKHOV

I GO. 1 Structure Structure Type Length ! to of Structure N or / =JS

No F B C M ><Suu I > =Sp Chrys Amphibole Nonasb Ambig/ND 1N00a00 No Coord i Elements)

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Siruct = > 0.5u > 5: ! Aspect Ratio Gnd acceptance: Positive diffraction pattern oroperties conforming to <50% undissolved filter, overlapped or folded Totals aooratory identification crilena observed <10% oarticutate coverage >50% coverage ate least 20 unfolded or overlapped gnd squares <5% = EDS spectrum conforming to laboratory holes or ooaoue areas i F B ! NI >y

dentification cntena observed Chrvsotile AMPHIBOLES ,~mphtbole = S ngie Faber Amosite B = Bundle <2 fibers <1 fiber mameter apart Crocidolite Ambiguous j ! = Duster I>3 ntersecuons) Anthophyllite Non-Asbestos • M = Matrix Tremolite • Acbnolite Non-ldentiiied i NSD = No Structures Zetectea

NYC-WTC 000104532