Ambient air sampling report Book Two for 105 Duane Street,

NYC 9/11 Public Portal Document

TEIVI Asbestos (air) Count Sheet Client Name: ATC Volume (liters): 1633 Lab Group #: 6217 Filter Type / Filter Area: MCE 385 mm- Lab Sample #: 4 Grid Opening Size: 0.01 124

Client Sample #: 006 Area Examined: 0.0562 mm=

GRID BOX: Magnification: 20.000 GRID ID: - Accelerating Voltage: 100 KeV # Grid Openings: 5 Analysis Date: 122801

Analysis Performed By: l='`~ i __ MARK PEYSAKHOV

GO. Structure Structure Type [ Length ID of Structure N or v EDS Nonadb NO F B C M >05 >=5N ChryS Amphibole Ncnaso AmbiglND No Coord Elemental

I I I i I j I

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i V I I I I

Struct = > ).3u > 3: i Asoect Ratio Gnd acceptance: ,j= Positive diffraction pattern properties conforming to <50% undissolved filter. ovenaooed or folded Totals iaooratory joentification cntena ooserveo <15% particulate coverage >50% coverage ate least 20 unfolded or overlapped grid squares <5% I F j B j C j M >du v= EDS spectrum conforming to laboratory holes or opaque areas j eentification cntena observed Chrysotile AMPHIBOLES Amphibole I F = Single Fiber Amosite B = Bundle (<3 fibers <1 fiber diameter apart Croc:dolite Ambiguous - = Cluster i>3 Intersections Anthophyllite Non-Asbestos Tremolite M = Matrix Non-Identified Actinolite NSD = No Structures Detected _ . . _ _—_ —

NYC-WTC 000104523